The Oort Cloud is a hypothetical layer which surrounds our solar system. Composed of icy objects, the Oort cloud is a fascinating speculation. It is said to be around 2000 to 100,000 astronomical units (approximately 7.4 trillion kms) away from the Sun. A recent study suggests that the icy layer may be home to many interstellar objects. In-fact, it may have more visitors than all the objects belonging to our solar system combined.
” Before the detection of the first interstellar comet, we had no idea how many interstellar objects we had in our solar system, but the theory on the formation of planetary systems suggests that there should be fewer visitors than permanent residents. Now we are finding that there could be substantially more visitors,” said Amir Siraj, who is the lead author of the study and a student at the Harvard’s Department of Astronomy.
We have seldom came across outlandish visitors, like comets, meteors and asteroids from the far reaches of space. The reason might be the existence of such an icy layer that envelopes our solar system. These visitors fail to make inside our solar system because of this hypothetical dense cloud. Scientists are yet to present any solid evidence validating the physical presence of the Oort cloud. It is an interesting supposition nevertheless.
(Image Credits: Wikipedia)