We’re watching something we’ve never seen before,” Dave Roberts said. Here are seven reasons this was the single greatest ...

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

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

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

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

Two comets, C/2025 A4 (Lemmon) and C/2025 R2 (SWAN), are about to reach their closest approach to Earth and you can watch the ...

Ancient rocks from Greenland, Canada and Hawaii preserve a rare chemical fingerprint that may come from the Earth before the ...

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

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

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

Millions of years before blue oceans and wandering continents, the Earth in its early days was a molten, tumultuous planet — ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...