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

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

Crucial for marine life and the global economy, coral reefs are the planet's first major environmental system to cross a ...

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

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

If Earth were ejected from the Solar System — by a passing star or planetary collision — daylight would vanish in days. The ...

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

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

Ryugu’s samples reveal that water activity on asteroids lasted far longer than scientists thought, possibly reshaping ...

From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...

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

The European Space Agency also hoped to observe the interstellar object during its close approach to Mars using two ...