The Oort cloud is thought to be a remnant of the originalprotoplanetary discthat formed around the Sun approximately 4.6 billion years ago. The most widely accepted hypothesis is that the Oort cloud's objects i
Although the outermost planet, Pluto, is 6 x 10 to the 9th km from the sun, the sun's gravitational sphere of influence extends much further, out to about 2 x 10 to the 13th km. This space is occupied by the Oort cloud, comprising 10 to the 12th-10 to the 13th cometary nuclei,...
Comet from the Oort Cloud Careens toward the SunClara Moskowitz
We're not exactly sure about the shape of the Oort cloud, but it is thought to be roughly spherical, as the objects in the Oort cloud are...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
Oort cloud Facts: The Oort cloud is the farthest from the Sun that you can go and still be in the Solar System. It is believed that most comets originate in the Oort cloud before "falling" toward the Sun. What is the Oort cloud? Scientists think that there is a group of rocks ...
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The Oort Cloud is a reserve of cometary nuclei that contain ices dating back to the origin of the solar system. No one knows for sure how many objects exist in the Oort Cloud, but most estimates put it at around 2 trillion. The planetoid Sedna, discovered in 2003, is thought to be ...
Millions of comets are believed to orbit the Sun at distances greater than 10,000 times the Earth-Sun distance. The gravitational effect of a distant passing star is thought to send an occasional Oort cloud comet into a highly eccentric orbit that carries it toward the Sun. However, only a...
Halley's Cometis also believed to have come from the Oort cloud, although it is now a Kuiper Belt object. Sednais a dwarf planet thought to be three-quarters the size of Pluto; it may be the innermost object in the Oort cloud. Discovered in 2003, Sedna has a wildly elliptical orbit ...