New orbital data reveal that the most recently active volcanic systems on Mars weren’t simple one-off blasts into space.

Organic compounds discovered on the Red Planet cannot be fully explained by non-biological sources, say astrobiologists.

Scientists studying a rock sample collected by NASA’s Curiosity rover have uncovered something tantalizing: the largest organic molecules ever detected on Mars. The compounds — decane, undecane, and ...

That does not mean that the detected alkanes are evidence of life on Mars; the conclusion relies on modeling how radiation ...

The discovery that amino acids can form in more ways than we thought is another boost to the search for life beyond Earth. If ...

What appears to be a single volcanic eruption is often the result of complex processes operating deep beneath the surface, ...

As next-generation telescopes map this outer frontier, astronomers are bracing for discoveries that could reveal hidden planets, strange structures, and clues to the solar system’s chaotic youth.

The release of files, videos and photographs from the federal inquiry into Jeffrey Epstein is the largest to date, and the final one planned by the Justice Department. Times reporters are sifting ...

A scientist at the University of Glasgow has delved into the possible existence of massive hypothetical energy-harvesting structures called Dyson spheres. In a new study, they showed that both stellar ...

A scientist argued that a Viking lander experiment in 1976 detected microbial life on Mars and urged NASA to repeat the tests before future missions. We asked retired astronauts about their favorite ...

NASA’s Curiosity rover has discovered the largest organic molecules ever detected on Mars. Found inside a 3.7-billion-year-old rock from a dried-up lakebed, these long-chain carbon molecules raise new ...

New theoretical models have strengthened the case that immense, energy-harvesting structures orbiting their host stars could exist in principle in distant stellar systems. With the right engineering ...