Sentences with phrase «icy objects into»
The results also suggest the presence of unseen, surviving planets which may have perturbed the belt and worked as a «bucket brigade» to draw the icy objects into the white dwarf.
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Researchers suspect that Phoebe's surface has probably changed very little during its captivity, meaning the moon offers unprecedented insights into objects in the Kuiper belt, the icy band from which comets arise.
«I try to imagine how it would be to stand on the surface of this icy object — small enough that a fast sports car could reach escape velocity and drive off into space — and stare up at a 20 - kilometre wide ring system 1000 times closer than the Moon.»
These comets are observed to come into the Solar System from all directions, which implies an immense spherical cloud of trillions of small icy, planetary objects — all potentially active but currently dormant comets — that extend as much as two light - years outward from Sol.
Traditionally, the solar system has been divided into planets (the big bodies orbiting the Sun), their satellites (a.k.a. moons, variously sized objects orbiting the planets), asteroids (small dense objects orbiting the Sun) and comets (small icy objects with highly eccentric orbits).
Both objects formed among the rocky and icy protoplanets beyond the Solar System's «ice line» now located around 2.7 AUs, but the early development of Jupiter apparently prevented such large protoplanets between the gas giant and planet Mars from agglomerating into even bigger planetary bodies, by sweeping many into pulverizing collisions as well as slinging them into the Sun or Oort Cloud, or even beyond Sol's gravitational reach altogether.