91av

Alien life

An artist's impression of ‘Oumuamua, passing through the solar system

Space

Space rock or flashy alien technology? We’re going to find out

Science is filled with imagined realities – beliefs that will turn out to be untrue – and the idea that interstellar objects are simply rocks could be one of them, writes physicist Avi Loeb

News

Space

The hunt for habitable ocean worlds beyond our solar system

Features
Artist's impression of three planets orbiting an ultracool dwarf star

Space

Earth’s algae and moss could survive under the light of another star

News
Saturn's moon Enceladus

Space

Enceladus shown to have all six of the essential elements for life

News
Goonhilly Earth Station

Space

Group that wants to contact aliens will transmit to TRAPPIST-1 system

News
image of message to extra terrestrials

Space

Scientists want to play chess with aliens as soon as we can find them

News
NWA 7034

Space

Mars may have been habitable millions of years later than we thought

News
The crater and its extremely harsh lake, Laguna Caliente, dominated by a single genus of extremophile Acidiphilium bacteria

Space

Bacteria survive extremes that may have existed in ancient Mars lakes

News
Protoplanetary disc

Space

Maps of planetary nurseries will help the complex hunt for alien life

News
Martian surface

Space

Martian cave entrances may offer a life-friendly radiation shield

The surface of Mars is bombarded with far more dangerous radiation than Earth, but the area just inside caves may shield from UV rays while providing just enough light for life

News

Space

Microbes burping methane on Mars may be right next to NASA rover

News

Space

The clouds of Venus are too dry to support life as we know it

News

Space

Clays found in Martian crater hint that the planet was once habitable

News

Space

The building blocks for life might exist at the edge of the galaxy

News