279 Results

Why It’s Hard for Black Holes to Get Together

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

How to Discover a Galaxy with a Telephoto Lens

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

These Astronomical Glass Plates Made History

Eight foundational images from the archives of the Carnegie Observatories.

Let’s Rethink Space

Does space exist without objects, or is it made by them?

Beauty Is Physics’ Secret Weapon

A Nobel laureate maps his path to discovery.

2015 Was the Best Year Ever in Space

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

10 Breaking Points

The pressure it takes to break everything from raindrops to stars.