Essays on Oort Cloud

Ordovician-Silurian mass extinction is one of the greatest mass extinction in the history. According to statistics, over one hundred families became extinct. This was associated with the movement and fragmentation of the supercontinent. Secondly was as a result of ocean cooling beyond levels the organisms could survive. While the organisms had initially adapted to the warm tropical conditions, the sudden transition to the cold climate was unbearable for most organisms (“Ordovician”,n.d.).. The late Devonian mass extinction is thought to have been warm and dry period. It was characterized by Devonian fish that was the main components of ...

Question 1

Jupiter was the first giant planet formed.

Question 2

According to the Nice theory where did the Kuiper belt objects and Oort cloud objects come from?

Kuiper belt objects come from the out edge of Solar System where huge spheres made of rock and ice that circle around Pluto’s orbit. The objects took their name from Gerard Kuiper who suggested that comets may come from the Kuiper belt. This group of planetoids is called Kuiper belt objects (KBO). The first KBO named “1991 QB1” was discovered in 1992. The plant Pluto also belongs to the group of KBO. Some ...

1.Jupiter was the first. Giant lies just beyond the frost line. As the frost line accumulated great amounts of water via evaporation from infalling icy material, it created a zone of lower pressure that increased the speed of orbiting dust particles and halted their motion toward the Sun. As a result , the frost line acted as a barrier whice lead material to accumulate. This excess material coalesced into a huge embryo of around 10 Earth masses, which then began to grow rapidly by swallowing hydrogen from the surrounding disc, reaching 150 Earth masses in only another 1000 years and finally topping out at ...