49 Results

The Beckoning of the Ice Worlds

We’ve been looking for life on Earth-like planets. Will Europa teach us better?

Will ET Drink Water?

The intricate compatibility of water and life on Earth may not extend to other planets.

The 315-Year-Old Science Experiment

How counting sunspots unites the past and future of science.

Jupiter Is a Garden of Storms

Why the Great Red Spot refuses to die.

Mario Livio on 25 Years of Hubble

The astrophysicist looks at the history of the world’s most famous telescope.

Don’t Write Off ET Quite Yet

It’s true that we haven’t seen alien life, but neither have we seen much of the universe.

A Quick Spin Around the Big Dipper

See how the night sky would appear from a different part of the galaxy.

The Astronomer Royal

Lord Martin Rees tells us about black holes and existential risks.

When the Earth Had Two Moons

A new model—“The Big Splat”—explains the strange asymmetry of the moon.