Mysterious ‘Red Sprite’ Appears in NASA Astronaut Photo From the Space Station. What Is This Strange Electrical Flare?
Red sprites are among a class of enigmatic weather phenomena that appear over thunderstorms, known as Transient Luminous Events
With Space Junk on the Rise, Is a Catastrophic Event Inevitable?
Debris from rockets and satellites can fall back to Earth or collide with other objects, and wreckage that burns up can harm the ozone layer
Mysterious Radio Pulses Found in Antarctica Seem to Defy Physics, and Researchers Are Trying to Trace Their Origins
Strange signals detected by a NASA instrument more than a decade ago have continued to confound scientists, but a new paper rules out cosmic neutrinos as a source
See the First-Ever Direct Images of the Sun’s South Pole, Captured by the Solar Orbiter Spacecraft
The spacecraft’s tilted orbit will allow scientists to investigate the mechanisms behind space weather that impact crucial human activity on Earth
Kentucky’s Devastating Tornado in May Left a Trail of Destruction Visible From Space
Satellite imagery released by NASA features a giant brown streak where the storm sliced through the Daniel Boone National Forest
NASA Spacecraft Orbiting Mars Captures Image of Giant Ancient Volcano Just Before Dawn
The perspective is what astronauts would see out their window if there was an International Space Station flying around the red planet
NASA Wants Your Help to Study These Rare, High-Altitude Clouds That Appear to Glow at Sunrise and Sunset
Noctilucent clouds usually form close to the poles, but in recent decades, they’re being spotted closer to the Equator
The U.S. Ran Its First Space Weather Preparedness Drill—Here’s How It Went
Ironically, the exercise last May was interrupted by a real scenario, when Earth was hit by the strongest solar storm in two decades
NASA Engineers Revive Long-Dormant Thrusters on Voyager 1, the Farthest Spacecraft From Earth, in a ‘Miracle Save’
In the nick of time, NASA teams addressed clogging issues in the probe’s backup roll thrusters, before the only antenna capable of sending commands to it went offline
See the First Visible Auroras Captured on Mars, Glowing a Hazy Green Above the Planet
Scientists directed NASA’s Perseverance rover to take an image of the Martian sky after a solar storm in hopes that an aurora would show up
Check Out Jupiter’s Stunning Auroras, Which Are Hundreds of Times Brighter Than Earth’s, in the James Webb Telescope’s Latest Images
The infrared views, captured in 2023, shed light on the giant planet’s atmosphere and magnetosphere—but they also reveal something unexpected
Astrophysicists Track Down the Mysterious Cosmic Origins of Gold and Other Heavy Metals in Our Galaxy
Researchers suggest powerful bursts from magnetars—collapsed stars with strong magnetic fields—may have contributed up to 10 percent of all elements heavier than iron in the Milky Way
How to Watch the Peak of the Spectacular Eta Aquariid Meteor Shower
The shower will peak during pre-dawn hours in early May, as fast-moving meteors trail across Earth’s atmosphere, thanks to debris left behind by Halley’s Comet
A New Analysis Raises Doubts About Potential Hints of Life Recently Detected on a Distant Exoplanet
Astronomers published evidence of possible biosignatures on the planet K2-18b earlier this month, but another look at the data suggests the finding could be statistical noise
Astronomers Discover a Doomed Exoplanet That’s Crumbling Away and Leaving Behind a Comet-Like Tail
The planet orbits its host star in just 30.5 hours, losing a mass of material roughly equal to Mount Everest each time
A Gold Watch That Belonged to Astronaut Neil Armstrong Sold for $2.1 Million at Auction
The commemorative timepiece is similar to the one that Armstrong and other NASA astronauts wore in space
NASA’s Lucy Spacecraft Just Flew by a Strange, Peanut-Shaped Asteroid. See the New Images From the Approach
The close-up views of asteroid Donaldjohanson are a preview of what’s to come for Lucy on its 12-year quest to study Jupiter’s Trojan asteroids
How to Watch the Lyrid Meteor Shower at Its Dazzling Peak
The annual spectacle, which is happening now, will last until around April 25—but the best viewing will fall between the 21 and 22
Chemical Hints on a Distant Planet Offer ‘Strongest Evidence Yet’ for Life Outside Our Solar System, Astronomers Say
The James Webb Space Telescope spotted possible signatures for life in an exoplanet’s atmosphere. Still, researchers caution it’s far too early to call the findings definitive
The Moon’s Far Side Is Strangely Dry—Lunar Samples Suggest It’s Much More Parched Than the Side That Faces Earth
Chinese researchers analyzed the first-ever soil samples returned from the far side of the moon, but further samples will be needed to verify their findings
Page 1 of 43