A rocket carrying a Space Force surveillance satellite may have created a hole in the ionosphere as it shot into space. The launch was carried out with just 27 hours' notice, which is a new record.
The James Webb Space Telescope has observed a source of carbon, a vital ingredient for life, on Jupiter's icy moon Europa.
The Surface Water and Ocean Topography (SWOT) satellite recorded higher sea levels off California, indicating a marine heat wave.
Artemis 2 moon astronauts went to Canada for a geology trip to a crater, similar to what they will see on their lunar trip in 2024. Joining them were other astronauts and top geology experts.
Three teams have progressed through to the final round of the MagQuest Challenge to design a better way of measuring the shifts in the geomagnetic field.
Reference Winter Solstice has long marked a time of rebirth, behind it are fascinating astronomical events.
Alexandru Lupsasca and Michael Johnson won the physics prize for their work on photon spheres — weird rings of light around black holes that may reveal a theory of quantum gravity.
These massive particles could shed light on dark matter by revealing how this mysterious substance interacts with "normal" matter.
Mikhail Ivanov, Oliver Philcox, and Marko Simonović won the New Horizons Award for their work on large scale structures — the strands and filaments of our universe which contain buried clues to its most fundamental properties.
The sun-kissing spacecraft watched as dust particles were displaced across 6 million miles (9.7 million kilometers).
The star T CrB flares up every 80 years. A document from 1217 could help confirm its regularity.
Reference Earth's global average surface temperature is approximately 59 degrees Fahrenheit (15 degrees Celsius). But it's on the rise.
A faint "bridge" of gas connects two colliding galaxies in a new photo from the Hubble Space Telescope.
There may be less water ice trapped in the permanently shadowed regions on the moon than previously thought.
Comet Nishimura has surprised NASA by photobombing its STEREO spacecraft, revealing it seems to have held together after its brush with the sun on Sept. 17.
Sir Brian May and NASA's OSIRIS-REx chief scientist Dante Lauretta challenge Space.com readers to photograph solar system objects to win a signed copy of their new book about asteroid Bennu.
The return capsule of NASA's OSIRIS-REx mission is scheduled to touch down in Utah on Sept. 24, bearing samples of asteroid Bennu. Here's how to watch the event live.
Supermassive black holes are even more fearsome eaters than scientists suspected, thanks to a "delivery system" that could help them feed over months rather than hundreds of years.
This spot on Mars has preserved information about ancient landslides and evidence of Red Planet water.
