Astronomy

Using stem cells from mice, researchers from Kyoto University tested the potential damage spaceflight can have on spermatazoa stem cells and the resulting offspring. After six months aboard the ISS, the stem cells were used to successfully produce healthy offspring.

A set of instruments shut off almost 50 years ago are still producing useful results. It’s the seismometers left by the Apollo missions to monitor moonquakes, which as the name suggests are earthquakes but on the Moon.

Comets are like the archeological sites of the solar system. They formed early on, and their composition helps us understand what the area around the early Sun was like, potentially even before any planets were formed. A new paper from researchers at a variety of US and European institutions used the Atacama Large Millimeter Array (ALMA) to capture detailed spatial spectral images of comet 12P/Pons-Brooks, which is very similar to the famous Halley’s comet, and might hold clues to where the water on the Earth came from.

In 2022, astronomers announced the discovery of GJ 3929b. It's a rocky planet, similar to Earth in both mass and size. Astronomers have examined the planet with the JWST and concluded that it's a barren world with no atmosphere.

Hulu's hit animated sci-fi show returns Sept. 15 with a 10-episode binge-worthy barrage.

Asteroid Ryugu is proving to be one of the most scientifically valuable time capsules in the solar system.

This quiz will challenge your knowledge of Mars' features, missions, and mysteries.

Stargazers will need a clear view of the western horizon to spot the moon near Spica as the sun sets on Aug. 27.

A new long-term study suggests that the more heat waves people are exposed to, the more their body’s aging process accelerates

Scientists have developed a new and improved method to better understand "steam world" exoplanets, a move that could refocus the search for life.

New research tapping into decades-old concepts is challenging the notion that the only way to treat cancer is to kill every last cancer cell. Instead, scientists suggest, we could try a little persuasion

New research tapping into decades-old concepts is challenging the notion that the only way to treat cancer is to kill every last cancer cell. Instead, scientists suggest, we could try a little persuasion

SpaceX shared spectacular photos of its Falcon 9 night launch carrying the U.S. Space Force's X-37B space plane to orbit on Aug. 21, 2025.

Some fast X-ray transients — quick flashes of energetic radiation — may come from massive stars collapsing and exploding at the same time.

The post Weird X-ray Flashes Lose Some of Their Mystery appeared first on Sky & Telescope.

Observations from the James Webb Space Telescope reveal unexpectedly high levels of carbon dioxide coming off 3I/ATLAS, giving another clue to the comet’s origin

Observations from the James Webb Space Telescope reveal unexpectedly high levels of carbon dioxide coming off 3I/ATLAS, giving another clue to the comet’s origin

The James Webb Space Telescope has joined the study of the interstellar invader 3I/ATLAS, uncovering secrets that could reveal more about the planetary system in which it formed.

The narrowest magnetic loops ever seen in the sun's corona have been imaged by the most powerful solar telescope on Earth.

Fresh results from near-infrared instruments foretell a bright future for finding life elsewhere in the Milky Way

The chain of lights shows the river's corridor from Minya to New Bani Sewf City to the heart of Cairo.