Stefanie Waldek

Living in space changes the human body — but arteries seem particularly resilient to microgravity's effects.

Astronomers have long voiced concerns about Starlink's satellite constellation interfering with observations of the universe, and a new survey by Curtin University confirms those fears.

The letter warns that the proposed FY2026 budget would halt dozens of missions, gut future programs and threaten U.S. leadership in space science.

The Vera C. Rubin Observatory's first images will be unveiled on Monday (June 23), and you can watch the action live.

One region of the continent saw a 22% decline in emperor penguin numbers over 15 years.

NASA's Perseverance rover regularly images a Sherlock Holmes–themed maze to calibrate its chemical-hunting SHERLOC instrument.

A new study debates the complex ethical questions that must be considered if we're to terraform Mars and lays the blueprint for a potential path forward.

A supernova remnant (SNR) discovered by astrophysicist Miroslav Filipović of Western Sydney University displays an astonishingly spherical shape.

Scientists have discovered 26 previously unknown bacterial species in the clean rooms that were used to prep NASA's Phoenix Mars lander for its 2007 launch.

"Even slight downward shifts in land can significantly compromise the structural integrity of buildings, roads, bridges, and railways over time."

A combination of X-ray from NASA's Chandra observatory and radio data indicates that a galactic "fracture" was likely caused by a special neutron star called a pulsar.

The James Webb Space Telescope has observed surface ice methanol — a key building block for organic compounds necessary for life, including sugars — on trans-Neptunian objects.

For the first time, scientists have identified climate change as the top driver of human-caused biodiversity loss among species protected under the Endangered Species Act.

On Easter Sunday (April 20), NASA's Lucy probe should have zipped past the asteroid Donaldjohanson, testing science instruments on the space rock.

Using NASA's Perseverance rover to analyze Martian rocks, researchers suggest that Mars' complex volcanism might hold clues about the planet's ancient habitability.

Hiroyasu Tsukamota has developed a deep-learning-based guidance and control framework called Neural-Rendezvous that could allow spacecraft to safely encounter interstellar objects.

The grand total of Saturnian moons is now 274.

For starters, they taught us that Earth is round

A distant star-killing supernova could have bombarded Earth with radiation strong enough to shift the course of evolution.

Rippled textures in a shallow lake bed on Mars indicate that ice-free liquid water once pooled here.

Not much, unless we're talking about spacecraft.

The Kumani Bank mud volcano in the Caspian Sea created an island in early 2023 that had almost disappeared by the end of 2024, according to Landsate satellite imagery.

Ashley Zelinskie's VR artwork Twin Quasar was inspired by the iconic deep-space image from the James Webb Space Telescope that introduced a new audience to gravitational lensing.

2024 was the warmest year on record, according to NASA data. The global average temperature was 2.3 degrees Fahrenheit above the mid-20th-century baseline.