Sentences with phrase «with impact craters»

Gaspra's surface is covered with impact craters.

Ceres has more than 130 bright areas, and most of them are associated with impact craters.

Mercury and the Moon are covered with impact craters; their surfaces are very old.

Or are they lava flows from volcanic activity that had nothing to do with the impact craters?

Seen in seismic - reflection profiles, and in gravity and magnetic surveys, it has traits that are consistent with impact craters, which are caused by collisions with asteroids and comets.

The mountain Ahuna Mons gets its own fourth category — the one instance on Ceres where bright material is unaffiliated with any impact crater.

Not exact matches

The map also shows that some small impact craters up to 2,000 kilometers from Orientale have been filled in with plains material.

«After the finding, there were a couple of ideas for how molecular hydrogen could be formed but none of them seemed to work for the conditions in the crater or with the rocket impact.»

Some smaller impact craters appear filled in with the material, potentially reshaping our understanding of the moon's history.

The impact aftermath killed most life on Earth, but the crater itself (bottom)-- shown with a central peak — remained hot long after the blast, perhaps creating a hydrothermal system similar to deep - sea vents.

In these maps, each area represents the final estimated crater size and location of a collision from roughly that time, with redder spots showing older impacts and bluer spots younger.

Key to the basin's identification as a potential impact crater are the decrease in the strength of Earth's gravity over the site, indicating a large basin filled with younger low - density sediments, and a strong increase in the strength of Earth's magnetism at the site.

Its charge was simple: Look for signs that Gale crater, a huge impact basin with a mountain at its center, might once have been habitable (for microbes, not...

The researchers say this indicates an upper crust made of a mixture of rock and ice — in which small craters could be carved — supported by a more viscous mantle of ice lower down, which would allow the biggest impact basins to relax away with time, like silly putty returning to its original shape.

Scientists have explained Sputnik Planitia's youthful appearance by positing that it is an ancient impact basin — a giant crater filled with thick floes of younger ice that, driven by heat seeping up from below, churn and refresh the surface.

Chicxulub Crater is an ancient impact crater buried underneath the Yucatan peninsula, with its center located approximately underneath the town of Chicxulub, Yucatan, Mexico.

The chance of a giant impact producing a crater so precisely aligned with Charon is vanishingly slim, Keane says, so he and his team (as well as Nimmo's) went searching for another explanation.

The scarps directly expose bright glimpses into vast underground ice previously detected with spectrometers on NASA's Mars Odyssey (MRO) orbiter, with ground - penetrating radar instruments on MRO and on the European Space Agency's Mars Express orbiter, and with observations of fresh impact craters that uncover subsurface ice.

If that upwelled material is denser than what was blasted away by the impact, the crater ends up with the same mass as it had before the impact happened.

The crater was filled - in with fragmented rock, and later with more typical ocean deposits, as the energy from the impact lessened and the environment returned to normal.

When a real meteorite collides with a planet or a moon, it not only creates a crater but often explodes on impact.

We report on the detection in southern Egypt of an impact crater 45 meters in diameter with a pristine rayed structure.

The poles are covered with hydrocarbon lakes and boast few craters, while the equator is a vast dune field peppered with impact scars.

Moreover, they add, five out of the six largest impact craters of the last 260 million years on earth correlate with mass extinction events.

The study explored seven effects associated with asteroid impacts — heat, pressure shock waves, flying debris, tsunamis, wind blasts, seismic shaking and cratering — and estimated their lethality for varying sizes.

Specifically, he and Caldeira found that six mass extinctions of life during the studied period correlate with times of enhanced impact cratering on Earth.

Water then interacted with impact - heated rock to enable synthesis of complex organic molecules, and the enclosed crater itself was a microhabitat within which life could flourish.

Grove's co-author, Olivier Namur of the University of Hanover, recalculated the surface compositions of all 5,800 locations, and correlated each composition with the type of terrain in which it was found, from heavily cratered regions to those that were less impacted.

They reasoned that without continual renewal, the surfaces of such bodies should have become densely covered with craters as a result of impacts by meteorites and comets over the 4.5 billion years that they have existed.

Charon's near - infrared spectra reveal highly localized areas with strong ammonia absorption tied to small craters with relatively fresh - appearing impact ejecta.

Those results set the age boundary for the oldest terrains on Mercury to be contemporary with the so - called Late Heavy Bombardment (LHB), a period of intense asteroid and comet impacts recorded in lunar and asteroidal rocks and by the numerous craters on the Moon, Earth, and Mars, as well as Mercury.

The spacecraft mapped Martian terrain with a laser altimeter, detected traces of magnetic fields with its magnetometer, and mapped at least 20 new impact craters between the time it started operations and the time it fell silent.

In the summer of 2014, with the support of the Irish Reseach Council (IRC) and Science Foundation Ireland (SFI), the team collected thousands of zircons from the Sudbury impact crater, Ontario, Canada - the best preserved large impact crater on Earth and the planet's second oldest confirmed crater at almost two billion years old.

Scientists reported that a large meteorite, called Canyon Diablo after the crater it formed on impact in northern Arizona, contained a new form of diamond with a hexagonal structure.

With the support of the Irish Reseach Council (IRC) and Science Foundation Ireland (SFI), the team collected thousands of zircons from the Sudbury impact crater in Ontario, Canada.

The lander (along with other debris believed to be related to the spacecraft's descent process) was found within the expected landing area for the probe, an impact crater designated Isidis Planitia, near to the Martian equator.

The smoothness is because the crater floor was filled with lava shortly after impact.

The Cassini - Huygens mission revealed that Titan's surface is quite young by planetary standards, with only a few large impact craters observed.

In addition, the collision with a 372 - kilogram (820 - pound) projectile launched by NASA's Deep Impact probe in 2005 has created a 150 - meter - wide (490 - foot - wide) crater with a small mound in the center, as some of the ejecta of the impact apparently fell back down within the crater, but the crater's relatively soft outline indicates that its edges have undergone significant changes since the 2005 impact (NASA / STARDUST / NExT news release; Astronomy Picture of the Day; David Shiga, New Scientist, February 15, 2011; Jonathan Amos, BBC News, February 15, 2011; and Richard A. Lovett, Nature News, February 15, Impact probe in 2005 has created a 150 - meter - wide (490 - foot - wide) crater with a small mound in the center, as some of the ejecta of the impact apparently fell back down within the crater, but the crater's relatively soft outline indicates that its edges have undergone significant changes since the 2005 impact (NASA / STARDUST / NExT news release; Astronomy Picture of the Day; David Shiga, New Scientist, February 15, 2011; Jonathan Amos, BBC News, February 15, 2011; and Richard A. Lovett, Nature News, February 15, impact apparently fell back down within the crater, but the crater's relatively soft outline indicates that its edges have undergone significant changes since the 2005 impact (NASA / STARDUST / NExT news release; Astronomy Picture of the Day; David Shiga, New Scientist, February 15, 2011; Jonathan Amos, BBC News, February 15, 2011; and Richard A. Lovett, Nature News, February 15, impact (NASA / STARDUST / NExT news release; Astronomy Picture of the Day; David Shiga, New Scientist, February 15, 2011; Jonathan Amos, BBC News, February 15, 2011; and Richard A. Lovett, Nature News, February 15, 2011).

Study of the images indicated that the crater was probably the result of a shallow impact with a comet or asteroid, at an angle of approximately 45 degrees.

Researchers compared the sample with the studies conducted in Sudbury impact crater in Ontario.

Bright features such as these are caused by the presence of freshly crushed rock material that was excavated and deposited during the highly energetic collision of a meteoroid with Mercury to form an impact crater.

When an icy impact occurred, the impactor's kinetic energy became heat energy, instantly melted some ice, gouged out a crater, and kicked up into Mars» thin atmosphere large amounts of debris mixed with water (liquid, ice crystals, and vapor)-- and complex organic molecules that obviously came recently from life.127 Then, the dirt and salt - water mixture settled back to the surface in vast layers of thin sheets — strata — especially around the crater.

Hubble resolves Martian surface features with a level of detail only exceeded by planetary probes, such as impact craters and other features as small as 30 miles (50 kilometers) across.

The moon is a cold, dry orb whose surface is studded with craters and strewn with rocks and dust (called Figure Meteor Crater, Arizona, is a recent impact crater similar to those found on the Moon.

Students first begin by with mini-mystery based on craters in the Yamal Peninsula There is a short student investigation on the impacts of climate change in the Arctic and active reading exercise on the wider impacts for other regions.

I much preferred its confident cruising capability and relatively quiet ride, along with a suspension system that, in addition to being off - road ready, was also more than willing to absorb the punishment doled out by Montreal's impact crater asphalt.

So with the latest Fortnite patch being released v4.2.0 Repairs are now being made to Tilted Towers following the meteorite impact, the crater has been covered up.

Dashing through the air and then smacking a demon into a wall by using a heavy attack is a satisfying and refreshing feeling; the controller shakes with the sheer impact Raikoh hits a demon with, and shakes again when the demon creates a small crater in the ground.

The record of history, as written in the many impact craters on Earth and the moon, demonstrate that it is just a matter of time before astronomers discover a near Earth object (NEO) headed toward a collision with Earth.