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

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

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

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

Wave-particle interactions across the solar system can have a wide range of effects though they are caused by the same set of ...

Damanveer Singh Grewal suggests that planetesimals in the early solar system emerged from a succession of high-energy ...

The first sign of trouble emerged in early May. After the Trump administration suffered a series of legal setbacks in federal ...

Who hasn't looked into the sky and wondered if there's life out there, somewhere, looking back at us? Is it possible there's ...

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

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its nebular gas had been consumed—Earth's solar system and its planets looked more ...

From GPS to innovations in computing and optics, technologies developed for space research at UC Santa Cruz touch nearly ...