A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and Earth. The authors dubbed it Planet Y.

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

In their search for dark matter, scientists from the XENON Collaboration are using one of the world's most sensitive dark ...

Asteroid ‘Families’ Reveal Hidden Histories and Impact Risks across the Solar System ...

Solar Cycle 25 remains in its maximum phase, and more powerful sun storms are likely to come over the next few months, experts say.

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Our solar system has been around for 4.6 billion years. While that sounds like a long time, it's ...

Object 3I/ATLAS is now too far from Earth to aim a telescope at, but prior observations showed some unusual behavior. The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought ...