When worlds collide…suns act squirrely. Astronomers have witnessed a rare and violent cosmic crash between two planets, and ...

Late-stage planetary collisions reshaped Earth and its neighboring planets, delivering water, altering their atmospheres, and influencing their tectonics. New findings suggest these violent impacts ...

Fans of David Attenborough are accustomed to viewing the famed English broadcaster’s nature documentaries in two dimensions—often, on the television screens in their living rooms. Now, they have a ...

The work is described in a new paper, ‘The Moon-forming impactor Theia originated from the inner Solar System’, published in the journal Science.

For over 50 years, Cornell has made astronomical contributions in the ongoing efforts to explore and understand the mysterious inner workings of Earth’s rust-colored neighbor, Mars. In honor of these ...