The curious minds at What If explore what would happen if a new planet formed in the solar system.

Astronomers have discovered a rare planetary system 71 light-years away, where a Jupiter-sized world orbits a brown dwarf, ...

Approximately 470 million years ago, ancient mollusc shells started to serve as habitats for small sea creatures, initiating a profound ecological transformation across global ocean ecosystems. These ...

By Will Dunham WASHINGTON, July 22 (Reuters) - Scientists are documenting a planetary system in the Milky Way galaxy that is ...

A catastrophic asteroid breakup may have triggered a huge wave of impacts across the inner solar system about 800 million ...

Billions of years ago, Jupiter’s violent growth transformed the young solar system, smashing icy and rocky bodies together at incredible speeds. These cataclysmic collisions created tiny molten ...

A new study found a four-carbon sugar named “erythrulose” in a molecular cloud in the interstellar medium (ISM) roughly ...

A shattered asteroid may have unleashed a long-lasting cosmic barrage that left scars across the inner solar system and ...

Throughout June 2026, SETI Institute scientists, affiliates, and collaborators contributed to discussions spanning ...

A meteorite that crashed into a New Jersey home carried ancient salts, organic molecules, and evidence of water on its parent ...

Astronomers discover Beta Pictoris d, a faint gas giant exoplanet, expanding insights into planet formation in multi-planet ...