SOLAR SYSTEM

Detailed explanation-1: -The Oort Cloud lies far beyond Pluto and the most distant edges of the Kuiper Belt. While the planets of our solar system orbit in a flat plane, the Oort Cloud is believed to be a giant spherical shell surrounding the Sun, planets and Kuiper Belt Objects.

Detailed explanation-2: -Space probes have yet to reach the area of the Oort cloud. Voyager 1, the fastest and farthest of the interplanetary space probes currently leaving the Solar System, will reach the Oort cloud in about 300 years and would take about 30, 000 years to pass through it.

Detailed explanation-3: -Sedna is 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 that takes it far beyond the Kuiper Belt.

Detailed explanation-4: -The inner edge of the main part of the Oort Cloud could be as close as 1, 000 AU from our sun. The outer edge is estimated to be around 100, 000 AU. NASA’s Voyager 1, humankind’s most distant spacecraft, is around 125 AU.

Detailed explanation-5: -Yes, the Oort cloud is located outside the heliosphere in interstellar space.