Boston: Scientists have discovered the secret behind the many ice ages that kept the Earth frozen for 30 million years.
There are many theories as to why the Earth’s climate cools, including the tilting and rotation of the Earth, the movement of tectonic plates and the eruption of volcanoes.
However, scientists at the University of Boston claim that they have evidence that a large space cloud formed in the past that covered the Earth and prevented the Sun’s heat from reaching the Earth. could
In a new paper published in Nature Astronomy, astronomer Mirav Ofer says that a dense space cloud in the Solar System pushed Earth and other planets out of the heliosphere.
The heliosphere is basically a bubble around all planets that is filled with charged particles and protects the world from cosmic radiation.
According to Ofer, without it, the Earth’s climate would have changed significantly.
“This is the first paper of its kind to show that a collision between the sun and an object outside the solar system affected Earth’s climate,” said Uffer, a professor of astronomy at Boston University and a fellow at the Harvard Radcliffe Institute. happened
