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
A Century Ago, Pioneering Astrophysicist Cecilia Payne-Gaposchkin Showed Us What Stars Are Made Of
The trailblazing Harvard scientist, who documented the dominance of hydrogen and helium in stars, is still inspiring researchers today
After Nine Months in Space, the Starliner Astronauts Are Finally Coming Home. Here’s How to Watch Live
Suni Williams and Butch Wilmore are making a 17-hour journey from the International Space Station and will splash down near Florida this evening
See Last Week’s Stunning Eclipse From the Moon in Photos Captured by the Blue Ghost Lander, Now at the End of Its Mission
The spacecraft carried out the longest commercial operation on the moon to date—and also made history during its rare chance to document this celestial event
James Webb Space Telescope Reveals That Most Galaxies Rotate Clockwise
This preferred direction of spin might be due to one of two reasons: either our entire universe exists in a black hole, or astronomers have been measuring the universe’s expansion incorrectly
Why NASA and SpaceX’s Mission to Relieve Starliner Astronauts Is Delayed Again
After an unexpected nine months in orbit, astronauts Suni Williams and Butch Wilmore are waiting for the arrival of Crew-10 before they head home. That launch is now expected for Friday
Astronomers Discover 128 New Moons Orbiting Saturn, Cementing the Planet’s Title of ‘Moon King’
The sheer number of objects suggests scientists will soon have to grapple with what counts as a moon versus what’s just a large rock
NASA’s New Space Telescope Launches to Explore the Origins of the Universe After a Series of Delays
Called SPHEREx, the instrument will map 450 million galaxies and search for water molecules that may be clinging to space dust
Astronomers Discover Evidence of a Stealthy Supermassive Black Hole Hiding Right ‘Under Our Noses’
The Large Magellanic Cloud is one of the most well-studied galaxies, but new findings suggest it might have been holding a giant secret
This Comprehensive Guide Will Answer the Questions You Have About Black Holes—and Spark Some New Ones
In a new book release, two scientists combine forces to explain the discoveries, developments and theories made in the realm of the densest objects in space
The Six Most Amazing Discoveries We’ve Made by Exploring Uranus
Its bland exterior belies a dynamic world full of surprises
How to See This Month’s Stunning ‘Blood Moon,’ the First Total Lunar Eclipse Since 2022
On the night between March 13 and 14, most of North and South America will be in for an astronomical treat
See the Striking New Images From the Blue Ghost Lunar Lander, Now the Second Private Spacecraft to Touch Down on the Moon
Firefly Aerospace’s lander reached lunar soil early Sunday morning, after a 2.8-million-mile journey lasting 45 days
Is the ISS Too Clean for Astronauts’ Health? New Study Finds the Space Station Lacks Microbial Diversity
Humans have evolved alongside microbes in Earth’s environment that help strengthen our immune systems. But sterile living conditions can reduce that beneficial exposure
Seven Planets Will Gather in the Night Sky This Weekend. Here’s What to Expect During the Rare Alignment
While such a lineup is uncommon, the event might not look exactly how you’re imagining it
Athena Spacecraft Launches to the Moon, as Intuitive Machines Aims for Historic Second Lunar Landing
The American company achieved the first successful moon landing by a private spacecraft last year. Now, it has sent a new mission to the south pole, carrying science instruments for NASA
The ‘Riskiest Asteroid Ever’ Is No Longer a Threat as Impact Probability Drops to Near Zero
As astronomers predicted, asteroid 2024 YR4 is not expected to hit Earth in 2032. This week, NASA gave the “all clear”
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