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

For almost a decade, astronomers have been searching for a ninth planet in the solar system. Recently, new evidence of ...

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

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...

MIT scientists have discovered ancient rock samples from Greenland, Canada, and Hawaii exhibiting a rare potassium-40 deficit ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

The asteroid belt may seem permanent, but it is far from static. Its slow decline reveals a more violent past when more ...

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

Researchers discover hidden solar tornadoes that can disrupt Earth's systems - revealing why current space weather warnings ...

Solar storms can have a devastating effect on earth's power and communication grids, and the trio of missions may help to ...

Coronal mass ejections are powerful releases of plasma, electrically charged particles from the Sun. The Sun is constantly ...