Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Where did life on Earth come from? It is one of humanity’s oldest and most fascinating questions. For centuries, people have ...

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

Experts stress need for transparency while aiming to prevent premature announcements and protect scientists ...

Disclosure Day treats extraterrestrial life as a challenge to faith. It’s not.

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...