Craters. Medical search. Frequent questions

The biggest crater is unusual, quite shallow compared to other fresh craters we have observed," said HiRISE Principal Investigator Alfred McEwen of the University of Arizona, Tucson. (sciencedaily.com)
It's relatively young - maybe 100 million years old - and fresh craters tend to be brighter, making it easy to spot. (syfy.com)

Central mountains and rings within impact craters are caused by gravitational collapse and surface uplift during the process of crater formation, which causes a cluster of several central mountains in craters with smaller diameters, or mountains arranged in a ring within larger craters. (dlr.de)
Because Mars has much less atmosphere than Earth, space rocks of comparable size are more likely to penetrate to the surface of Mars and cause larger craters. (sciencedaily.com)

Close view of expanded craters, as seen by HiRISE After the impact, ice left the ground and made the crater larger in diameter. (wikipedia.org)
JZRO ) is a crater on Mars in the Syrtis Major quadrangle , [3] about 45.0 km (28.0 mi) in diameter. (wikipedia.org)
130-km- (80-mile-) diameter crater named Herschel, which is near the centre of the leading hemisphere. (britannica.com)
The crater Herschel, named in honour of Mimas's discoverer, the 19th-century English astronomer William Herschel, is 130 km (80 miles) across, one-third the diameter of Mimas itself. (britannica.com)
The impact had left a crater 110 to 170 miles in diameter buried nearly a kilometer underground and sparked massive volumes of ash into Earth's atmosphere. (bartleby.com)
Pythagoras is a 120 km diameter complex lunar crater characterized by a relatively flat crater floor, a central peak and terraced walls. (esa.int)
The impact ejecta are distributed radially over an area of the crater's surroundings that extends for more than one crater diameter. (dlr.de)
One particularly striking feature is the ring of mountains inside the impact crater, which has a diameter of 90 kilometres. (dlr.de)
If craters above a certain diameter collapse immediately after the impact, this results in a complex inner structure with a flat bottom, central mountains, terraces and inner rings, whereas smaller, simple impact craters have dish-shaped floors. (dlr.de)
The transition diameter between what are referred to as simple craters and complex craters depends on the strength of the gravity on the impacted planet or moon, the nature of the substrate material and the speed of the impactor. (dlr.de)
A ring of mountains can form in the centre of complex impact craters with a diameter of over approximately 80 kilometres on Mars, or about 25 kilometres on Earth. (dlr.de)
This view shows Alga Crater's central peak, which is about 5 kilometres wide within the 19 kilometre diameter of this southern-hemisphere crater. (cosmosmagazine.com)
The team estimate that the source crater is about 50-65 km in diameter and should be deeply buried under younger sediments in the northern Denver basin near the Wyoming-Nebraska border. (sciencedaily.com)
Al Wahba Crater is 250 m (820 ft) deep and 2 kms in diameter. (arabnews.com)
David J. Grainger, Senior Geological Editor with the Saudi Arabian Directorate General of Mineral Resources, with reference to this crater, stated in the journal 'Geology Today' issued back in January 1996 that "A Quaternary phreatic event drilled out a crater 2 kms in diameter through Proterozoic basement rocks and Quaternary lava flows. (arabnews.com)
Craters can be a few feet in diameter or several miles wide. (swri.org)

Simulations and the assessment of borehole data from the approximately 200-kilometre-wide Chicxulub impact crater on the Yucatán Peninsula in Mexico have revealed that an inner ring develops when very large, unstable central mountains collapse. (dlr.de)
An inset of the Chicxulub crater is included for comparison. (space.com)
The newfound crater is more than twice the size of the Chicxulub crater in the Yucatan peninsula, which marks the impact that may have ultimately killed the dinosaurs 65 million years ago. (space.com)
Most scientists now accept that the formation of Chicxulub, a buried impact crater on Mexico's Yucatan Peninsula, accompanied the extinction of the dinosaurs 65 million years ago. (astronomy.com)
If it's confirmed as a crater, it would have crashed into Earth within a million years of the Chicxulub meteor that caused the extinction of the dinosaurs. (popsci.com)
The Chicxulub crater in Mexico is the largest impact crater formed on Earth over the past two billion years. (lu.se)
The study in question is based on the analysis of drill cores extracted from the Chicxulub crater. (lu.se)
In the Danish location of Stevns Klint , the clay layer - which consists of the dust from the bedrock in the Chicxulub crater and the smashed asteroid - breaks through in the coastal cliffs. (lu.se)

On the Moon, however, craters are virtually permanent. (nasa.gov)
A "fresh" crater on the Moon can be hundreds of millions of years old. (nasa.gov)
These images compare recent impact craters on the Moon (top) and Earth (below). (nasa.gov)
Throughout their histories, both the Moon and Earth have been bombarded by meteorites and asteroids, which often leave behind dramatic impact craters. (nasa.gov)
Since objects that encounter the Moon are dramatically smaller than the Moon itself, cratering occurs. (bartleby.com)
What caused the craters and rilles on the moon? (answers.com)
The craters on the Moon are considered to be impact craters, caused by meteoroids striking the Moon. (answers.com)
The moon has craters. (answers.com)
What caused the moon to have many craters? (answers.com)
They hit the moon frequently, causing many craters. (answers.com)
The craters on the Moon are caused by the impacts of meteoroids. (answers.com)
What caused many craters in the moon? (answers.com)
Since the Moon is cold and has no volcanoes, virtually all the craters there are the results of impacts. (answers.com)
The Working Group for Planetary System Nomenclature of the International Astronomical Union has officially approved the naming of two craters on the Moon to commemorate the 50th anniversary of the Apollo 8 mission . (iau.org)
Similar peak-ring craters can be seen on Earth, Venus, Mercury and the Moon. (dlr.de)
Craters of the Moon is home to lava beds, caves and unforgettable skies. (byui.edu)
Craters of the Moon was born out of a volcanic eruption 2,000 years ago. (byui.edu)
In 1924, explorer Robert Limbert wrote an article for National Geographic about the unique land, and named it Craters of the Moon, as it was thought to resemble the surface of the moon. (byui.edu)
Leading up to the moon landing in 1969, NASA trained at Craters of the Moon. (byui.edu)
Since astronauts traveled to the moon instead of geologists, they needed to learn how to retrieve specimens from unfamiliar terrain, and Craters of the Moon was the best place. (byui.edu)
Now that we know more about the moon and about other planets in our solar system, we now know that craters of the moon is a lot more mars like than it is moon like," said Greg Reed, the lead interpretive ranger at Craters of the Moon. (byui.edu)
Today, NASA researchers still come to Craters of the Moon, but now for Mars missions instead of the moon. (byui.edu)
Craters of the Moon has four caves to explore: Indian Tunnel, Dewdrop Cave, Boy Scout Cave and Beauty Cave. (byui.edu)
Craters of the Moon is an International Dark Sky park, so the lack of light pollution means breath-taking night skies. (byui.edu)
In addition to the occasional star party, Craters of the Moon hosts ranger led hikes during the day and evening programs every weekend throughout the summer season. (byui.edu)
When you look at the full Moon through binoculars or a small telescope, one of the most prominent features on the surface is the crater Tycho. (syfy.com)
I mean, these are incredibly obvious and well-documented features, not just on the Moon but on most crater-ridden worlds. (syfy.com)
If I saw this same mascon signal on the Moon, I'd expect to see a crater around it," Frese said. (space.com)
The Moon, with no atmosphere, retains a record of ancient impacts in the visible craters there. (space.com)
Climbing a crater is almost like landing on the moon or reaching the peak of Mount Everest. (arabnews.com)
When a small object collides with a larger object, such as the Moon, the impact creates a crater on the larger body. (swri.org)
Discovering these two craters and a new way to detect young craters in the most mysterious regions of the Moon is particularly exciting," said Mandt. (swri.org)

Large impacts often create swarms of small secondary craters from the debris that is blasted out as a consequence of the impact. (wikipedia.org)
Of the approximately 400 fresh crater-causing impacts on Mars that have been documented with before-and-after images, this is the only one discovered using a MARCI image, rather than an image from a higher-resolution camera. (sciencedaily.com)
HiRISE reveals more than a dozen smaller craters near the two larger ones seen in the CTX image, possibly created by chunks of the exploding asteroid or secondary impacts of material ejected from the main craters during impact. (sciencedaily.com)
And when that's the case, cratering impacts rarely leave rays. (syfy.com)
Different terrains produce different results in crater-forming impacts. (syfy.com)
Geologists are arguing about whether craters found in fine-grained soils called loess were formed by the impacts of bodies from space or simply by winds. (newscientist.com)

Also, details about the process of crater formation are poorly understood. (lu.se)

They form when an impact crater ejects material which forms an erosion-resistant layer, thus causing the immediate area to erode more slowly than the rest of the region. (wikipedia.org)
Tikonravev Crater floor in Arabia quadrangle, as seen by Mars Global Surveyor Pedestal crater, as seen by HiRISE under HiWish program Location is Hellas quadrangle , An expanded crater is a type of secondary impact crater. (wikipedia.org)
Areography (geography of Mars) Expanded crater Geology of Mars Impact depth Impact event LARLE crater Pedestal crater Rampart crater Ray system Secondary crater Weiss, D., J. Head. (wikipedia.org)
Memorial to Eugene Merle Shoemaker who showed that craters such as Tswaing are formed by impact. (wikipedia.org)
Tswaing ( Tswana for "place of salt" [1] ) is an impact crater enclosed by a 1,946 ha nature reserve, situated in northern Gauteng province, South Africa. (wikipedia.org)
[3] [4] Morokweng impact structure , another South African crater of chondrite origin, lies north-west of Vryburg . (wikipedia.org)
A scientific dispute was ongoing regarding the origin of the crater between supporters of volcanic origin (Wagner, 1922) and those who believed it is an impact crater (Rohleder, 1933) until 1990, when examination of the core from a borehole proved that it is an impact crater. (wikipedia.org)
The impact crater is accompanied by the Ditsong Tswaing Crater Museum. (wikipedia.org)
Those meteorites that hit on land leave behind an impact crater. (nasa.gov)
The bright "rays" surrounding the lunar crater show that the impact was relatively recent-less than 500 million years ago. (nasa.gov)
Meteor Crater formed from the impact of an iron-nickel asteroid about 46 meters (150 feet) across. (nasa.gov)
Layers of exposed limestone and sandstone are visible just beneath the crater rim, as are large stone blocks excavated by the impact. (nasa.gov)
Popigai is one of the largest and most well-preserved impact craters on Earth. (nasa.gov)
This image shows Gosses Bluff, an impact crater sandwiched between the Macdonnell Range to the north and the James Range to the south in Australia's Northern Territory-it is about 160 km west of Alice Springs. (nasa.gov)
It is one of the most studied of the Australian impact craters. (nasa.gov)
A recently formed impact crater on Mars. (universetoday.com)
Here's a new impact crater that was seen by the Mars Reconnaissance Orbiter. (universetoday.com)
Most impact craters are usually circular and fairly symmetric, but not all. (universetoday.com)
This odd-shaped crater on Mars is obviously an impact crater, but it has a unique oblong shape. (universetoday.com)
Is this a closeup look at a tree stump, or an orbital view of an impact crater? (universetoday.com)
An impact crater on Mars. (universetoday.com)
It is difficult to envision that one of the greatest impact craters on Earth that measures up to 180km wide and 900m deep could just vanish just from sight. (bartleby.com)
If the objects are of differing sizes, collision results in an impact crater on the target body. (bartleby.com)
The impact of the meteorite is thought to have caused fracturing that led to the generation of magma from deep in the crust that helped in later filling the crater and producing the igneous complex (Faggart et. (bartleby.com)
Scientists discovered a fresh crater carved into the surface of Mars by a March 2012 impact. (space.com)
These findings suggest that impact craters on alien worlds might be good places to look for past and present signs of life , researchers say. (space.com)
The 200-kilometre-wide peak-ring impact crater shown in this High Resolution Stereo Camera (HRSC) image mosaic is named after the US astronomer Percival Lowell. (dlr.de)
The impact crater, which is between 3.7 and 3.9 billion years old, is located in the Aonia Terra region of the southern Martian highlands. (dlr.de)
Some scientists class such peak-ring craters to be the largest type of complex craters, while others consider them to be the smallest examples of impact basins. (dlr.de)
Stratigraphy in Gale Crater on Mars indicates the effects of megafloods in the distant past, most likely caused by the heat released in a major impact. (astronomynow.com)
Researchers have discovered on the Red Planet the largest fresh meteor-impact crater ever firmly documented with before-and-after images. (sciencedaily.com)
It had photographed the site of this newly-discovered crater in January 2012, prior to the impact. (sciencedaily.com)
Two craters appear in the April 2014 CTX image that were not present in the earlier one, confirming the dark spot revealed by MARCI is related to a new impact crater. (sciencedaily.com)
Studies of fresh impact craters on Mars yield valuable information about impact rates and about subsurface material exposed by the excavations," said Leslie Tamppari, deputy project scientist for the Mars Reconnaissance Orbiter mission at NASA's Jet Propulsion Laboratory in Pasadena, California. (sciencedaily.com)
What remains is one of the largest impact craters on one of Saturn 's smallest moons. (nasa.gov)
NASA's Mars Reconnaissance Orbiter has captured this close-up image of a relatively recent impact crater in the Sirenum Fossae region of Mars. (cosmosmagazine.com)
Meanwhile, the orbiter's Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) has taken this image of d eposits of impact glass preserved in Martian craters, including Alga Crater, shown above. (cosmosmagazine.com)
Impact glass forms in the heat of a violent impact that excavates a crater. (cosmosmagazine.com)
Why do some impact craters have rays? (syfy.com)
The impact forms craters, just as you'd expect (sometimes you can put in a layer of cocoa powder to show what happens to stuff under the surface, too). (syfy.com)
Three moments from a crater ray experiment: Just before impact (left), right after impact (middle), and a moment later (right) when plumes ejected from the crater will form rays. (syfy.com)
One way to do that would be to go there and collect rock from the crater to see if its structure matches what would be expected from such a colossal impact. (space.com)
Several dozen small impact craters, 10--70-m in size, have been discovered in southeastern Wyoming. (sciencedaily.com)
8, 2021 The 15-million-year-old Nördlinger Ries is an asteroid impact crater filled with lake sediments. (sciencedaily.com)
A team led by Luann Becker of the University of California, Santa Barbara reported in Science this week that a probable impact crater off the northwestern coast of what is now Australia formed in association with the event. (astronomy.com)
The new evidence comes in part from two cores drilled through an undersea structure called the Bedout (pronounced "Bedoo") High, which others had proposed as a possible Permian impact crater as early as 1995. (astronomy.com)
These 'young' impact craters are a really exciting discovery," said SwRI Senior Research Scientist Dr. Kathleen Mandt, who outlined the findings in a paper published by the journal Icarus. (swri.org)
Impact craters tell the history of collisions between objects in the solar system. (swri.org)
During the impact, the material ejected forms a blanket of material surrounding the crater. (swri.org)
Ludovic Ferrière, an impact crater expert from the Natural History Museum Vienna who was not involved in the work, agrees that the shape of the feature is interesting and warrants further investigation-but he's skeptical of the decision to publish on the basis of seismic images alone. (popsci.com)
The same is true for an impact crater: The only hard evidence of a meteor are the presence of "shocked" minerals that form only under the hammer blow of a cosmic strike, or actual spray from the extraterrestrial object. (popsci.com)
Although the Nebraska hole has the round shape of a classic crater, observers are sceptical because Dort lacks samples to show an impact origin. (newscientist.com)
Now, researchers from Lund University in Sweden, among others, are analysing drill cores from the crater to reconstruct in detail what happened on Earth directly after the impact. (lu.se)
Impact cratering is associated with extreme physical conditions with temperatures and pressures far exceeding conditions otherwise prevailing at the surfaces of terrestrial planets. (lu.se)
show the importance of experimental impact cratering for bridging the gap between observations in shocked rocks from terrestrial impact structures, in meteorites, and in returned samples, and their formational conditions. (lu.se)
The hypothesis remains controversial due to absence of shocked minerals, tektites, and impact craters. (cdc.gov)
Lonsdaleite is known on Earth only in meteorites and impact craters, and its presence strongly supports a cosmic impact event, further strengthened by its co-occurrence with other nanometer-sized diamond polymorphs (n-diamonds and cubics). (cdc.gov)
My main field of research is impact cratering and planetary geology. (lu.se)
This is done through studies of both terrestrial (impact craters) and extraterrestrial material (micrometeorites, meteorites and asteroids). (lu.se)
Impact cratering is one of the most important geological processes in our solar system, and has played a major role in the evolution of our planet. (lu.se)
Despite the significance of impact cratering, we know very little of the delivery mechanisms that control transportation of crater forming projectiles to Earth. (lu.se)

Which is associated with young craters? (answers.com)
San Antonio, Texas - May 23, 2016 - A Southwest Research Institute-led team of scientists discovered two geologically young craters - one 16 million, the other between 75 and 420 million, years old - in the Moon's darkest regions. (swri.org)
Finding geologically young craters and honing in on their age helps us understand the collision history in the solar system. (swri.org)
It is exciting and extremely gratifying to happen upon a unique and unexpected new method for the detection and age determination of young craters in the course of nominal operations. (swri.org)
The ejecta blankets of "fresh," relatively young craters have rough surfaces of rubble and a sprinkling of condensed, bright dust. (swri.org)
LRO-LAMP Detection of Geologically Young Craters within Lunar Permanently Shaded Regions" is published in Icarus, http://dx.doi.org/10.1016/j.icarus.2015.07.031 . (swri.org)

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Oresme. (wikipedia.org)

There has been much speculation about the origin of the crater. (arabnews.com)

NASA's Perseverance rover provides a razor-sharp mosaic showing its view across the floor of Jezero Crater, including remnants of a delta where water once flowed into a broad lake that may have provided a habitable environment for microbial life. (astronomynow.com)
NASA's Perseverance Mars rover successfully captured its first rock sample from the floor of Jezero Crater after an initial failure. (astronomynow.com)
Engineers are assessing an initial, unsuccessful attempt by the Perseverance Mars rover to collect its first rock sample from the floor of Jezero Crater. (astronomynow.com)
The Perseverance Mars rover's cameras capture the stark, desert-like beauty of Jezero Crater where a now-vanished lake once sparkled and where traces of ancient microbial life may preserved in lakebed sediments. (astronomynow.com)
The Perseverance Mars rover, getting a major post-landing software update, beams back a spectacular panorama of its Jezero Crater landing site. (astronomynow.com)
An artist's impression shows its target - Jezero Crater - as it might have appeared in the distant past. (astronomynow.com)
We present a combined geomorphologic, multispectral, and geochemical analysis of crater floor rocks in Jezero crater based on data obtained by the Mast Camera Zoom and SuperCam instruments onboard the NASA Mars 2020 Perseverance rover. (lu.se)

In contrast, Meteor Crater (also known as Barringer Crater) on Earth is only 50,000 years old. (nasa.gov)
This crater is almost similar to Barringer Crater located in the Arizona desert of the United States. (arabnews.com)

A two night stay at Sanctuary Ngorongoro Crater Camp will give you the chance explore the ecological wonderland created by this extinct volcano before heading off to have a cathartic wildlife encounter in Bwindi Impenetrable Forest. (go2africa.com)
Afterwards you will travel to Ngorongoro Conservation Area and arrive at the Ngorongoro Crater Camp where you can rest and prepare for an exciting adventure to follow the next day. (go2africa.com)
A morning at Overnight Sanctuary Ngorongoro Crater Camp provides time for relaxing at camp. (go2africa.com)
Day eight begins with a hearty breakfast before you head down into Ngorongoro Crater. (go2africa.com)

But this image of a crater on Mars provides planetary scientists almost the same kind of climate history data about the Red Planet as tree rings provide to climate scientists here on Earth. (universetoday.com)
Even better: The scientists got the idea after watching YouTube videos of high school students doing the classic "make craters by dropping rocks into a box of flour" experiment! (syfy.com)
Tiny differences in reflectivity, or albedo, measured by LAMP allowed scientists to discover these two craters and estimate their ages. (swri.org)
Scientists determined that the areas around the two craters were brighter and rougher than the surrounding landscape. (swri.org)
Scientists need to identify which craters were formed by bodies from space in order to assess the danger to Earth. (newscientist.com)

Oresme is a crater on the Moon's far side. (wikipedia.org)
The scientific explanation is that the Moon's craters were caused by meteors, asteroids and comets, while the rilles were caused by lava flows. (answers.com)
What cause the Moon's craters? (answers.com)

Erosion in Kaiser Crater on Mars, as seen by the HiRISE camera on the Mars Reconnaissance Orbiter. (universetoday.com)

My friends who I shall refer to as musketeers, decided to visit a volcanic crater that we had checked out on the Internet. (arabnews.com)
I turn left toward Nimran and from there I can almost glimpse the volcanic crater which is called Al-Wahba Crater. (arabnews.com)

[22] Calculations suggest that the crater may hold about 1 kilometre (0.62 mi) of sediments. (wikipedia.org)
The image below depicts examples of these patterns, and a channel that carried water and sediments into the crater. (wikipedia.org)
Over the course of millions of years, Lowell Crater has been altered by erosion and filled with sediments that have levelled the crater floor. (dlr.de)

The trajectories indicate a single source and show that the craters were formed by ejected blocks from a large primary crater," said project leader Thomas Kenkmann, professor of geology at the University of Freiburg, Germany. (sciencedaily.com)
We can follow the effects of the gigantic fireball that spread from the crater", says Birger Schmitz, professor of geology at Lund University. (lu.se)

The Working Group for Planetary System Nomenclature (WGPSN) of the International Astronomical Union, who named the craters, is the authority responsible for the naming of planetary features in our Solar System. (iau.org)

The world's oldest intact volcanic caldera, the lush vegetation growing on the floor of the crater supports about 30 000 animals. (go2africa.com)

Craters classified as pancakes in Viking images, turned out to be double-layer craters when seen at higher resolutions by later spacecraft. (wikipedia.org)
LCROSS stands for Lunar Crater Observation and Sensing Spacecraft. (bartleby.com)
This image from NASA's Dawn spacecraft, taken Dec. 19, 2015, shows part of Messor Crater, at northern mid-latitudes on Ceres. (nasa.gov)

[13] Perseverance successfully landed in the crater on 18 February 2021. (wikipedia.org)
An unusual crater on Mars, as seen by the CaSSIS camera onboard the ESA/Roscosmos ExoMars Trace Gas Orbiter (TGO) on 13 June 2021 in the vast northern plains of Acidalia Planitia. (universetoday.com)

Subsequent erosion has partially filled the crater, which is now only 150 meters (550 feet) deep. (nasa.gov)
Furthermore, the terrestrial cratering record is far from complete due to tectonic activity and erosion. (lu.se)

The crater, named Herschel after the 1789 discoverer of Mimas, Sir William Herschel , spans about 130 kilometers and is pictured above in the dramatic light of its terminator . (nasa.gov)

This crater has a considerably damaged outer rim that forms an uneven, irregular ring about the interior floor. (wikipedia.org)
By contrast, the floor of Oresme is a relatively level, featureless surface that is marked only by a few tiny craters and low topological features. (wikipedia.org)
The name Tswaing means "place of salt" in Tswana and the crater was also formerly known in English as the Pretoria Saltpan crater and in Afrikaans as Soutpankrater , due to the highly saline lake on the crater floor. (wikipedia.org)
Between 1912 and 1956 brine was pumped from the floor of the crater by the company SA Alkali Ltd. in order to extract soda and salt. (wikipedia.org)
Boulders formed from compressed lunar dust and soil litter the crater floor. (nasa.gov)
Then the Hudson Lacrosse hat that I was wearing that night fell off my head onto the floor of the crater! (bartleby.com)
The scene shows an older crater in which a large lobe-shaped flow partly covers the northern (top) part of the crater floor. (nasa.gov)

Pedestal crater, as seen by HiRISE under HiWish program. (wikipedia.org)
The crater, a little more than a kilometre wide, photographed by the orbiter's High Resolution Imaging Science Experiment (HiRISE) camera. (cosmosmagazine.com)

Dark sand dunes inside Kaiser Crater on Mars. (universetoday.com)
Dark sand dunes, gullies and channels created by water run-off are visible along the inner rim of the crater. (dlr.de)

The slightly elliptical crater spans roughly 5 kilometers. (nasa.gov)
Furthermore, several craters are elliptical, allowing the reconstruction of the incoming paths of the impactors. (sciencedaily.com)

Sixty-six million years ago, a gigantic celestial body crashed to Earth on the Yucatán peninsula, forming a crater 200 kilometres across. (lu.se)

[4] The lake in the crater was present when valley networks were forming on Mars. (wikipedia.org)
From a study of the delta and channels, it was concluded that the lake inside the crater probably formed during a period in which there was continual surface runoff . (wikipedia.org)
In 2007, following the discovery of its ancient lake, the crater was named after Jezero , Bosnia and Herzegovina , one of several eponymous towns in the country. (wikipedia.org)
Flyfoto over Crater Lake. (wikipedia.org)
Crater Lake nasjonalpark er en nasjonalpark sør i delstaten Oregon , USA . (wikipedia.org)
Crater Lake har ingen inn- eller utløp. (wikipedia.org)
Crater Lake inspires awe. (nps.gov)
How Much Water Is In Crater Lake? (carleton.edu)
In this Spreadsheet Across the Curriculum activity, students use a 3D grid of rectangular prisms to calculate the volume of water in Crater Lake (Crater Lake National Park, Oregon). (carleton.edu)
In the end, the students compare the volumes they have calculated using the two different grid sizes to the published value calculated by the U.S. Geological Survey using the full spatial resolution of the data and thus determine which of the grid sizes gives the more accurate estimate of the volume of water in Crater Lake. (carleton.edu)
Do a calculation that they might think of again when they see the calendar images of Crater Lake and Wizard Island. (carleton.edu)
Whether you're hitting the trail, pulling down at the crag, or just racing around town, the Crater Lake™ Tank is a go-anywhere, warm-weather active top that serves up style without the sunburn. (mountainhardwear.com)
This eye-popping Icelandic crater lake is surrounded by red volcanic rock. (atlasobscura.com)
And sometimes that's not even enough, so the showiest country in the world provides something like Kerið Crater Lake, which is a nearly neon blue lake sitting in a volcano surrounded by rare red volcanic rock. (atlasobscura.com)
The lake in the middle of the crater is home to thousands of flamingos whose shimmering pink feathers create a sight that is second only to the Serengeti sunset. (go2africa.com)

The team calculated the ballistic trajectories and used mathematical simulations to model the formation of the craters. (sciencedaily.com)

Based on cores drilled a little over 100 miles from the proposed crater, the site sits right around the K-PG boundary, the line that marks the mass extinction of dinosaurs, pterosaurs, and giant marine reptiles, 65 million years ago. (popsci.com)

According to Wikipedia, geologists agree that Al Wahba Crater is classified as a Maar Crater which is caused by a phreatomagmatic eruption-an explosion caused by groundwater coming into contact with hot lava or magma. (arabnews.com)

But here's a newly found crater on Mars that might be a case of 'bear-adoilia. (universetoday.com)
The newly named craters are visible in the foreground of the iconic Earthrise colour photograph taken by astronaut William Anders . (iau.org)

The crater is rimmed with a tough ring of debris from the explosion. (arabnews.com)

A team of U.S. and German geoscientists found these ancient craters in exposed sedimentary layers from the Permian period (280 million years ago). (sciencedaily.com)

The intriguing brightest spots on Ceres lie in a crater named Occator, which is about 60 miles (90 kilometers) across and 2 miles (4 kilometers) deep. (nasa.gov)

All of the craters found so far are located 150-200 km from the presumed primary crater and were formed by blocks that were 4-8-m in size that struck the Earth at speeds of 700-1000 m/s. (sciencedaily.com)

Studies of a type of secondary craters, called expanded craters, have given us insights into places where abundant ice may be present in the ground. (wikipedia.org)

The researchers assumed that the single-layer ejecta craters would all be within the icy layer, but the double and multiple layer ejecta craters would always penetrate the icy layer. (wikipedia.org)
Single-layer ejecta craters only penetrate into the icy upper layer, as shown on the left. (wikipedia.org)

Another interesting feature of this idea is that if they count the rays around an existing crater, and carefully measure the topography of the area around it, they can estimate the size of the impactor. (syfy.com)
Other images, produced using laser altimetry and sunlight scattered off crater walls, provided details about topography, surface features, and material properties. (swri.org)

Acquired April 30, 2010, this natural-color image shows Goat Paddock Crater in northwestern Australia. (nasa.gov)
Exactly when the crater formed is not known, but this image was taken on July 24, 2020 and in a previous image of this site taken in 2018, the crater is not there. (universetoday.com)
The square around the crater shows the extent of the mosaic that was created from seven image strips. (dlr.de)

But that's not why it's so prominent: It's the rays , the collection of long, bright features pointing radially away from the crater. (syfy.com)
Mercury has crater rays so long the planet looks like a watermelon ! (syfy.com)
They also found that the material that forms the rays doesn't come from the crater itself, but from material on the surface around the impactor, specifically from a narrow ring around it. (syfy.com)
Many of the craters are clustered in groups and are aligned along rays. (sciencedaily.com)

The crater spans half the length of a football field and first appeared in March 2012. (sciencedaily.com)
The largest crater is slightly elongated and spans 159 by 143 feet (48.5 by 43.5 meters). (sciencedaily.com)

Anatomy2

Organisms5

Diseases1

Chemicals and Drugs13

Analytical, Diagnostic and Therapeutic Techniques and Equipment6

Phenomena and Processes25

Disciplines and Occupations3

Technology, Industry, Agriculture1

Information Science2

Health Care7

Geographicals2

Fresh Craters2

Larger craters2

Diameter16

Chicxulub8

Moon32

Impacts6

Process of crater formation1

Impact61

Young craters6

Side of the crater1

Origin of the crater1

Jezero Crater7

Barringer Crater2

Ngorongoro Crater4

Scientists5

Moon's3

Mars Reconna1

Volcanic crater2

Sediments3

Geology2

Solar system1

World's1

Spacecraft3

20212

Erosion2

Herschel1

Floor7

HiRISE2

Sand dunes2

Elliptical2

Kilometres1

Lake15

Formation1

Cores1

Geologists1

Newly2

Debris1

Permian1

Kilometers1

Earth1

Secondary1

Penetrate2

Topography2

Image3

Rays4

Spans2