While Mars today only has a wispy remnant of an atmosphere, it may once have had one hundreds of times thicker with a ...

New reconstructions of 540 million years of climate history show the planet tumbling between icehouse and hothouse states, revealing how rare and vulnerable our temperate moment is.

The closest technological species to us in the Milky Way galaxy could be 33,000 light years away and their civilization would ...

A team of scientists has investigated how Earth’s twin became so inhospitable, and whether the same will happen to our planet ...

Viking consisted of two twin orbiters and landers, with experimental chambers in the landers to conduct three biology ...

When the JWST finally began its long-awaited science operations in July 2022, there was a long list of targets awaiting its ...

Impact history should be considered a key factor in the search for habitable Earth-like exoplanets. Southwest Research ...

JWST confirms GJ 1132 b lacks an atmosphere. This challenges the habitability of planets around M-dwarfs. Astronomers often encounter conflicting results when investigating cosmic questions. This is a ...

On September 14, 1959, the Soviet Union’s Luna 2 spacecraft became the first man-made object to reach the Moon. The mission, ...

Elon Musk and Jeff Bezos have spent two decades and large portions of their exorbitant wealth creating new space technologies. Their plan is to reshape how humans live.

Hubble has uncovered a rare ultra-massive white dwarf created in a violent star merger. Once thought to be ordinary, the star ...

Memorial spaceflights have grown from novelty to a modest and steady business, one that’s carried thousands of loved ones to ...