space
This Fossil Star Cluster is Like Nothing Astronomers Have Ever Seen

An incredible 19,000 light years away, in the Sagittarius constellation, lies a brilliant star cluster unlike any other. A new analysis indicates that Terzan 5 is a “fossil relic” from the formation of the Milky Way — and it could help us piece together our cosmic origin story. Read More >>

space
A Mysterious Object From Earth’s Distant Past Has Returned

A first-of-its-kind space rock filled with pristine material from the formation of the Earth itself has returned to the inner solar system, after billions of years in the cosmic boondocks. And it could help us piece together our planet’s origin story. Read More >>