Astronomy

A dispatch from the future of extreme sports.

The high technology that could help us live through the sun’s inevitable transformation.

How stars and UFOs set one astrophysicist on her path.

The extraordinary physical intuition of Hannes Alfvén.

An astrophysicist sits down with Nautilus to discuss cosmology and culture.

The universe’s greatest sinkholes have no trouble swallowing anything—except themselves.

Eight foundational images from the archives of the Carnegie Observatories.

The Dragonfly telescope is pushing the boundaries of small-scale observational astronomy.

The romance is back, argues a NASA adviser and best-selling science-fiction author.