Sentences with phrase «giant collision»

All of those satellites could be remnants of one giant collision early in solar system history.
But they acknowledge that no one has ever carried out detailed calculations of elemental loss during giant collisions.
The newly proposed theory by researchers Prof. Hagai Perets, of the Technion, and Weizmann Institute Profs. Raluca Rufo (lead author) and Oded Aharonson, runs counter to the commonly held «giant impact» paradigm that the moon is a single object that was formed following a single giant collision between a small Mars - like planet and the ancient Earth.
The apparent ubiquity of moons orbiting KBO dwarf planets supports the idea that giant collisions are a near - universal fixture in the histories of these distant worlds.
Now, scientists will be looking at its density to determine if it was formed by a giant collision or if it was grabbed by the parent dwarf's gravity.
Formed in a giant collision 2 billion to 3 billion years ago, these asteroids share similar orbits.
Giant collisions in other solar systems would produce abundant dust visible to the infrared Spitzer Space Telescope, but although a few such dusty systems have been found, collisions big enough to produce something like the moon seem to happen in only 5 to 10 per...
Exploding stars, giant collisions, revolutions in evolution: there is no denying that there have been some momentous twists on the road to us.
Its peculiar nonspherical shape suggests that it could be a fragment left over from a giant collision or bits and pieces from a bigger moon, says Spilker.
The theory of the giant collision, which is corroborated by these two independent studies, could explain why the northern hemisphere of Mars has a lower altitude than the southern hemisphere: the Borealis basin is most probably the remains of a giant collision, such as the one that in fine gave birth to Phobos and Deimos.
It also helps explain why Mars has two satellites instead of a single one like our Moon, which was also created by a giant collision.
Pascal Rosenblatt and Sébastien Charnoz's team thus had to combine three successive cutting - edge simulations in order to provide an account of the physics behind the giant collision, the dynamics of the debris resulting from the impact and its accretion to form satellites, and the long - term evolution of these satellites.
Two independent studies have now solved the puzzle: the Martian moons must have arised from a giant collision.
According to a competing theory, toward the end of its formation Mars suffered a giant collision with a protoplanet: but why did the debris from such an impact create two small satellites instead of one enormous moon, like the Earth's?
One of these studies, to be published in The Astrophysical Journal and predominantly conducted by researchers from the CNRS and Aix - Marseille Université [1], rules out the capture of asteroids, and shows that the only scenario compatible with the surface properties of Phobos and Deimos is that of a giant collision.
Artist's rendering of the giant collision that may have produced Phobos and Deimos along with the Borealis basin.
The Moon's water did not come from comets but was already present on Earth 4.5 billion years ago, when a giant collision sent material from Earth to form the Moon, new research shows.
Their conclusion: The Moon's water did not come from comets but was already present on Earth 4.5 billion years ago, when a giant collision sent material from Earth to form the Moon.
A giant collision of several galaxy clusters, each containing hundreds of galaxies, has produced this spectacular panorama of shocks and energy.
«Giant collisions were, of course, more likely to occur very early on.»
This richness in metals was tentatively explained by various formation or evolution scenarios, like a giant collision, an evaporation of the mantle or a depletion of silicates in the inner limit of the protoplanetary disc of the Solar System.
«It is now known that giant collisions are a common aspect of planet formation, and the different types of outcomes from these last big impacts might go a long way toward explaining the puzzling diversity observed among planets,» says Asphaug.
The 16 Psyche asteroid is thought to be the leftover iron core of a planet stripped of its mantle in a giant collision.
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