Fusion Rockets Could Theoretically Cut Our Travel Time to Mars in Half. This U.K. Startup Wants to Give It a Try
The company’s ambitious new Sunbird design aims to harness nuclear fusion in space, despite the fact that commercializing such energy on Earth remains a faraway dream
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
A Newly Discovered and Brilliantly Green Comet Is Dazzling Astronomers. Here’s What to Know About the Glowing Celestial Visitor
Initial observations suggest the comet, called C/2025 F2 (SWAN), will continue getting brighter as it approaches the sun. Northern Hemisphere viewers with binoculars can currently spot it in early morning skies
A New Satellite Will Map the Carbon Content of Rainforests From Space, and It’s Set to Launch This Month
The European Space Agency’s new probe, Biomass, will spend five years orbiting the planet and gathering radar imagery of forests across multiple continents
Astronomers Discover a Rare White Dwarf Pair Doomed to Explode in a Brilliant Supernova
The event will be ten times brighter than our Moon in the night sky, but never fear, it won’t happen for another 23 billion years
Watch a Spinning Martian Dust Devil ‘Consume’ Another in a New Video Captured by NASA’s Perseverance Rover
Tracking dust devils helps researchers learn more about Mars’ atmosphere, wind and weather conditions
Four Civilian Astronauts Capture Imagery of Earth’s Icy Poles on Fram2, the First Crewed Mission to Polar Orbit
The mission, funded and commanded by a cryptocurrency entrepreneur, was launched by SpaceX on Monday and has grabbed headlines for its flight path
From Worlds That Look Like Cotton Candy to Others Covered in Volcanoes, These Are the Strangest and Most Captivating Exoplanets
Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most definitely don’t
First Orbital Rocket Launched From Western Europe Crashes Into Sea After Roughly 30-Second Flight
Isar Aerospace, the company behind the rocket, is still heralding the launch as a success due to the data it provided
SpaceX Astronauts Will Try Growing the First Mushrooms in Space on Upcoming Fram2 Mission Over Earth’s Poles
Described as the “perfect space crop,” the nutritious and ready-to-eat fungus could be a key stepping stone toward fueling crew members during long-term spaceflight
How to Watch a Live Stream of the Rare Sunrise Eclipse on Saturday and Catch a Glimpse of Solar ‘Devil Horns’
Early risers can observe a partial solar eclipse in areas of eastern North America on March 29, given clear skies and proper eye protection
How Do Space Programs Get Their Names? And More Questions From Our Readers
You’ve got questions. We’ve got experts
Check Out Neptune’s Beautiful Auroras, Captured for the First Time by the James Webb Space Telescope
Scientists suspected the ice giant hosted auroras—and had already observed them on Jupiter, Saturn and Uranus. But an observation of Neptune’s lights remained elusive for decades
Saturn’s Rings Have ‘Disappeared’ in an Optical Illusion. Here’s Why We See This Temporary Vanishing Act
Every 13 to 15 years, Earth crosses through Saturn’s “ring plane,” making the gas giant’s most iconic feature become nearly invisible
Curiosity Rover Discovers Largest Organic Compounds Ever Found on Mars, a Possible Sign of Ancient Life
The molecules may be remnants of fatty acids, which form cell membranes in Earth’s organisms, though they might have formed through a non-biological process
Scientists Detect ‘Unexpected’ Oxygen in the Most Distant Galaxy Ever Found, Defying Ideas About the Early Universe
The findings suggest galaxies formed much more quickly than astronomers assumed
Mysterious Dark Energy Might Be Weakening—and That Could Upend Predictions About the End of the Universe
Astronomers thought dark energy was a constant. But now, findings from the Dark Energy Spectroscopic Instrument provide even more evidence that it may be fluctuating
Astronomers Find Four New Exoplanets Orbiting a Neighboring Star, the ‘White Whale’ of Planet Seekers
More than 60 years after the first debunked discovery of a planet orbiting Barnard’s Star, the closest single-star system to Earth, a pair of telescopes has revealed multiple rocky worlds around it
The First Big Data Drop From the Euclid Space Telescope Unlocks a ‘Treasure Trove’ of Insights on the Universe’s Mysteries
The European Space Agency’s “dark universe detective” discovered millions of new galaxies and offers potential clues about dark matter
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