History

NASA's New Horizons Spacecraft reaches Pluto in historic encounter, beams back incredible images.

Even the discovery of alien microbes would be a profound shift for science.

New findings from NASA's Mars Reconnaissance Orbiter (MRO) provided the strongest evidence yet that liquid water flows intermittently on present-day Mars.

A renewed quest to discover intelligent life in the Universe.

A scientist raised questions about the latest detection of methane on Mars, suggesting that NASA’s rover could be responsible for the mysterious burp. Highly unlikely, but not impossible, said the Curiosity team.

A global ocean lies beneath the icy crust of Saturn's geologically active moon Enceladus, according to new research using data from NASA's Cassini mission.

The Hubble Space Telescope picks up clues from Ganymede's thin atmosphere.

Strip away the atmosphere and a mini-Neptune might have a habitable core.

How do we keep a firewall between the planets to ensure microbes don’t cause havoc on Earth or Mars?

Maybe Earth, with its giant moon, is actually the oddball amongst habitable planets.