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. A remarkable ...

What lies beyond Neptune? Is it just empty space… or something far more mysterious? In this video, we explore the fascinating story of the Oort Cloud – a gigantic, icy sphere that surrounds our Solar ...