One of the oldest meteorites ever discovered, the 4.6 billion-year-old Erg Chech 002, could reveal vital information about the formation of the solar system.

The star is surrounded by a protoplanetary disk, and this disk is the first evidence of debris condensing into what will eventually become planets and other objects. Observing this early phase of ...

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have entered our solar system, a comet-like object known as 3I/ATLAS.