Sentences with phrase «large impact basins»

Large impact basins are also found on other planets, including Mars and Mercury.

«By comparing the measured craters to the number and spatial distribution of large impact basins on Mercury, we found that they started to accumulate at about the same time, suggesting that the resetting of Mercury's surface was global and likely due to volcanism,» said lead author Dr. Simone Marchi, who has a joint appointment between two of NASA's Lunar Science Institutes, one at the SwRI in Boulder and another at the Lunar and Planetary Institute in Houston.

They also took into account the large impact basins that have shaped the moon's topography, and they considered the moon's gravity field together with its topography.

Simone Marchi, a planetary scientist at the Southwest Research Institute in Colorado, did find traces of large impact basins comparable to Tombaugh Regio in Dawn's data.

But this initial study helps raise the possibility that some of the original mantle mineralogy, if excavated, may be preserved in the Moon's largest impact basin.

Combining these new estimates with the fact that there are even larger impact basins on the Moon and other planets, Schultz concludes that protoplanet - sized asteroids may have been common in the early solar system.

At 2,500 kilometers across, the SPA is the largest impact basin on the Moon and perhaps the largest in the solar system.

For decades, scientists have debated the significance of these rings, which are found around the largest impact basins on the moon, Mars, and Earth.

Second, it produced one of the planet's largest impact basins, measuring many thousands of kilometers across.

New high - resolution observations of Vesta by the DAWN mission reveal that the creatr is part of an even larger impact basin that was created by two massive overlapping impacts roughly around one and two billion years ago, which scooped out around one percent of the asteroid's estimated volume and blasted it into space (more from NASA's DAWN Mission and NEO Program; 1997 NASA / Hubble news release; Cornell University; Thomas et al, 1997; Kelley et al, 2003; and Jerry Coffrey, Universe Today, June 15 2009; and Russell et al, 2012; Jaumann et al, 2012; Marchi et al, 2012; and Schenk et al, 2012).

Not exact matches

The feature sits in the Rembrandt impact basin, the second - largest impact scar on the planet.

The study looked at smaller craters within the larger SPA basin made by impacts that happened millions of years after the giant impact that formed the basin.

A basin in the Falkland Islands exhibits traits of a large impact crater, according to a new analysis by a team of scientists.

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.

The models simulated the impact of an object large enough to create a basin of Sputnik Planum's size hitting Pluto at a speed expected for that part in the solar system.

... The SPA basin is the oldest, deepest observable impact basin on the moon and ranks among the largest recognized impact structures in the solar system,» (shown in the image).

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 impact that formed a large basin known as Orientale in the western area of the moon's near side, which the group investigated in detail, obliterated all prior craters within the basin itself, an area of nearly 700,000 square kilometers.

And, Head notes, Orientale is not even the biggest lunar basin — a larger impact such as the one that formed the Imbrium Basin would affect an even larger fraction of the terrain.

This view of 1,000 - mile - wide Caloris basin — among the largest known asteroid impacts in the solar system — shows how lava (orange) filled the blast site before new craters excavated the original basin (purple).

The Murray - Darling basin in southern Australia, by contrast, is only weakly affected by fragmentation, but is heavily impacted by flow regulation, due to fewer but larger reservoirs.

Heat differences meant impacts left larger, shallower basins on the lunar surface that faces Earth

Impact basins are very large impact structures that are more than 300 kilometers (185 miles) in diaImpact basins are very large impact structures that are more than 300 kilometers (185 miles) in diaimpact structures that are more than 300 kilometers (185 miles) in diameter.

Early in the formation of our solar system (before 3.9 billion years ago) there was lots of large debris striking the surfaces of the young planets and moons; these older impact basins are larger than the more recent craters.

This is a small central section of Hellas Planitia, the largest visible impact basin in our Solar System.

A composite of several Cassini images shows Titan's varied surface, including possibly a remnant of an old impact basin (large circular feature near the center of Titan's disk).

Interestingly, the paper cited seems to be arguing that any large moon could have broken apart on its way in, providing the large near - side impacts attributed to the «Great Cataclysm» of impacts that formed the nearside basins nigh on 3.9 billion years or so ago.

While many scientists suspect that the western half of Pluto's heart formed within a basin created long ago by the impact of a large Kuiper Belt object onto Pluto, at least one new scenario requires no impact.

Formed by the impact of a large asteroid or comet, Caloris is one of the largest, and possibly one of the youngest, basins in the Solar System.

This mineral is rare in asteroids, but common on larger bodies (including Mars, which has it in impact basins).

# 8220; This multi-year Pacific Decadal Oscillation «cool» trend can intensify La Niña or diminish El Niño impacts around the Pacific basin,» said Bill Patzert, an oceanographer and climatologist at NASA's Jet Propulsion Laboratory, Pasadena, Calif. «The persistence of this large - scale pattern [in 2008] tells us there is much more than an isolated La Niña occurring in the Pacific Ocean.»

The future of glaciers and associated runoff is projected for 56 large drainage basins globally, with glacier wastage impacting on runoff and water resources even in basins with limited glacier cover.