There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

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

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 ...

Interstellar visitor 3I/ATLAS has been constantly changing as it makes its way through our solar system. That's to be expected, as, for the first time in potentially billions of years, it's getting ...

A discovery in V883 Orionis' planet-forming disk suggests Earth's water could have come from ancient interstellar ice that ...

Astronomers have made an unexpected and groundbreaking discovery in our solar system—a ring system forming around Chiron, a ...

"This finding is the first direct evidence of water’s interstellar journey from clouds to the materials that form planetary ...

Interstellar comet 3I/ATLAS, or C/2025 N1, is baffling scientists with its carbon-rich chemistry, early water release, and ...

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

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

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