The simulation of the Solar System that came the closest to the observation was the presence of a small planet, between the ...

Did NASA find another Earth? Scientists look to the sky to find a copy of our planet, and some experts think they may have ...

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

A mysterious space object named 2023 KQ14, nicknamed “Ammonite,” challenges theories about the mysterious and possible Planet ...

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and Earth. The authors dubbed it Planet Y.

A recent study by Princeton University astronomers suggests the possible existence of a previously undetected planet in our ...

When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary ...

Analysis by researchers at the University of Bern suggests that water and other volatile compounds arrived on Earth from outer space—specifically via a collision with a Mars-sized planet billions of ...

Just a few weeks ago, we crossed the significant milestone of 6,000 known exoplanets. The counter keeps getting higher, and there are 8,000 more candidates waiting for confirmation. In the decades ...

Scientists at MIT and elsewhere have discovered extremely rare remnants of "proto Earth," which formed about 4.5 billion ...

About 4. 6 billion years ago, the Solar System formed from a cloud of dust and gas collapsing in on itself due to gravity.