space

A cute mathematical trick can "rescale" the Universe so that it isn't actually expanding. But can that "trick" survive all our cosmic tests?

'Wave goodbye to it. Rest in peace.'

Modern solar panels can harness not just ultraviolet light, but also visible and in some cases infrared. But all of these designs are built to harness the sun, which gives off most of its light in the green range and emits plenty of ultraviolet light. But most exoplanets orbit red dwarf stars, which have a peak brightness in the...

Three comets named Hartley, Encke and Tsuchinshan will pass by the sun in the next few months and be visible from Earth. Here’s how you can spot them

Region at centre of Messier 87 galaxy captured by the Event Horizon Telescope in motion

The sun’s outer atmosphere is vastly hotter than its surface. Scientists may be close to figuring out why.

NASA's quest for extraterrestrial life now includes technosignatures, evidence of advanced civilizations on distant exoplanets. Through AI, new research methods, and a broadened focus, scientists remain hopeful in discovering life beyond Earth. Our first confirmed proof of life beyond Earth might

The decade-long concerns continue. NASA needs to be more transparent about the costs and schedules associated with its Space Launch System (SLS) moon rocket, a newly released audit has found.

India's space agency Isro's new footage shows Chandrayaan-3's rover Pragyaan for the first time ever.

Using nuclear fusion, Pulsar's rocket could dramatically increase travel speeds, aiming for tests by 2025 and fusion temperatures by 2027.

Get ready stargazers: The Perseid meteor shower and a super blue moon are highly anticipated sights this August.

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a new giant exoplanet transiting a nearby M-dwarf star. The newfound alien world, designated TOI-4860 b, is comparable in size and mass to Saturn. The finding is reported in a paper published August 2 on the pre-print...

Haley's Coronet is at war with its neighboring dwarf galaxy, and it's a gravitational struggle the latter is bound to lose.

This week, the European Space Agency will guide its dead Aeolus wind satellite back to Earth — but not in one piece.

In a rare astronomical event, August 2023 stargazers will see two supermoons, coupled with the appearance of an elusive blue moon

The giant planet 8 Ursae Minoris b seems to have avoided engulfment by its giant host star through a stellar merger that either affected the evolution of the host star or produced 8 Ursae Minoris b as a second-generation planet.

Grounded in the 1967 Outer Space Treaty, the Artemis Accords is a non-binding international agreement, designed to guide civil space exploration and use.

Southwest Research Institute scientists are using telescopes to observe the asteroid Psyche in the infrared, providing context for NASA's upcoming Psyche mission. Dr. Stephanie Jarmak is using the James Webb Space Telescope (JWST) to look for water signatures on the metallic surface of Psyche, while Dr. Anicia Arredondo is using...

NASA is funding eight new studies aimed at better understanding how the human body reacts to spaceflight. These studies will be done on Earth without the need

Astronomers have spotted a gigantic void they believe to be a baryon acoustic oscillation — a relic from when the universe was a fiery plasma soup

The German project aims to explore beneath Earthly ice as a test for space exploration.

The U.S. Department of Defense wants fresh ideas on how to maintain military superiority in space.