Sentences with phrase «large craters»

As for the asteroid: There are a few large craters in the world that are said to be the results of large meteorites — we could reclassify them as asteroids... Even with that, there have been few detected «asteroid» collisions in the past 4 billion years.

One of the youngest large craters on Earth's moon, called Tycho, has similar fractures.

Two years ago, astronomers Lisa Randall and Matthew Reece of Harvard University fingered dark matter for a 35 million - year cycle — which they later revised to 32 million years — based on the birth dates of large craters from comet crashes.

Part of Mount Batur's massive caldera is filled by Danau Batur, Bali's largest crater lake.

The kind of asteroid needed to form the Martian dichotomy would fall in between that size and those of the rocks that formed other large craters, such as the South Pole — Aitken impact basin on the moon and the Hellas Basin in Mars's southern hemisphere, both more than 1,30 miles (2,000 kilometers) wide.

The view of Diamond Head from a helicopter gives you an idea of just how large the crater is!

A few of the temples were damaged during the Vietnam war and you can still see large craters from the bombs.

This image from NASA's Dawn spacecraft shows large craters Urvara (top) and Yalode (bottom) on dwarf planet Ceres.

The face we see has fewer large craters and far greater areas of smooth, dark, frozen lava.

The authors suggest that searches for these impact ejecta layers will be more fruitful for determining how many times Earth was hit by big asteroids than searches for large craters.

Maps from the GRAIL spacecrafts reveal more large craters (big circles) and thinner crust (blue) on the moon's nearside (left) than on the farside (right), where the crust is thicker (red).

There's an assault on the Oval Office, knocking off the president and several cabinet folks, leaving a rather large crater where a good part of the West Wing used to be, and, oh, oh» a dump truck backs over the vice-president's limo, killing him as well.

Peak rings are seen in large craters throughout the solar system.

In fact, images of Mercury show several lava flows inside large craters, supporting this idea.

Eventually the lake overflowed, eroding away large craters in what is now the channel's floor and gradually breaking down the ridge to help form the English Channel we know today.

The largest volcano in the solar system, Alba Mons on Mars, is diametrically on the opposite side of the planet from the very large crater Hellas Planitia.

While there are undoubtedly still a number undiscovered large craters buried deep under sediments, they are much more difficult to detect and confirm.

Large craters cover more of the moon's surface on its nearside than its farside, according to new maps from NASA's GRAIL spacecrafts.

So, you have decided to visit beautiful and peaceful Lake Toba, the world's largest crater lake.

The lava filled floor is quite fascinating as it means the crater doesn't have the characteristic mountains that many other large craters have at the centre.

Project scientists were so unsure of the impact's effects that they had a betting pool as to how large the crater would be — one of the most important indicators of the structure of the comet nucleus.

When researchers added realistic topography to the model, including the 4 - kilometer - deep Sputnik Planum and two other large craters, the basin gradually trapped Pluto's nitrogen, carbon monoxide, and much of its methane, the researchers report online today in Nature.

The team hopes to find new clues about how these large craters form and what made the impact so deadly.

Both large craters have a circle of hills around their center called a peak ring.

«We know these formed at the same time as these large craters, and we can date the age of the craters,» Schultz said.

«Falkland Islands basin shows signs of being among world's largest craters.»

The eruption destroyed the top three thousand feet of the volcano, blasting it into the air in pieces, leaving behind only a large crater three miles wide and half a mile deep, as though the mountain had been struck by a meteor.

The largest craters tend to be the oldest ones, hinting at a pugilistic past for the solar system.

Radar data helped locate an approximate position for its final resting spot — somewhere just within the rim of the large crater on the head of the duck - shaped comet, what was once known as landing site «B.» Holger Sierks, principal investigator for the orbiter's camera, was waiting for images to be downloaded to Earth tonight that he thought would contain the lander.

The smallest craters should have been made by the smallest object, and the largest craters should have been made by the largest object.

«It was good to finally get a decent look at Tirawa, Rhea's largest crater, and its «evil twin» directly to the northeast,» says outer - moon expert William McKinnon of Washington University in St. Louis, US.

Did the smallest objects make the smallest craters and the largest ones make the largest craters?

Theory aside, MRO's spectrometer clearly identified the bright ejecta around one larger crater as water ice.

The new research suggests that life existed prior to the massive bombardment of the inner solar system that formed the moon's large craters 3.9 billion years ago.

Large craters can achieve a life span of several 100 million years, depending on the region in which they are located.

«We're seeing lateral stratigraphy, something we could never do before» because of the wide expanse of layers exposed in the large crater,» says Squyres.

The peak then collapses, leaving a center ring of rock within the larger crater.

The key is that the moonlet's impact would be slow enough to pancake its material across one face of the moon rather than excavating a large crater.

The faster the incoming impactor, the larger the crater.

In one of the new views is a crater chain called Gerber Catena, just west of the large crater Urvara.

Opportunity has explored two large craters — Victoria and Endeavour — among many other locations.

This image from NASA's Dawn spacecraft shows the largest crater on Ceres, called Kerwan.

Russell and his scientific team expected to find a large crater on Vesta, but they were surprised to find two, with the larger one essentially on top of the smaller.