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Astronomers

The Helix Nebula with bow shocks on the upper left

A New Telescope Still Under Construction Accidentally Reveals How a Dying Star Returns Matter to Space

Researchers captured an unprecedented image of the stellar recycling process while calibrating a Chile-based instrument called MOTHRA, which is expected to be complete by the end of 2026

A view of Pluto from NASA’s New Horizons spacecraft shows the planet’s signature heart-shaped feature.

Once the Solar System’s Ninth Planet, Pluto Was Reclassified 20 Years Ago. Here’s Why Planetary Scientists and the Public Alike Love the Small, Icy Body

Pluto is now the most well known of the outer worlds beyond Neptune—and the darling of the solar system

The highest-resolution image of the sun's surface ever captured

Stunning New Images Reveal Whirlpools on the Sun’s Surface. The Swirling Structures Might Help Power Solar Flares

Observed directly in the solar photosphere for the first time, the vortices might braid magnetic fields, thought to be responsible for energy buildups and eventual outbursts. The features also offer clues about why the sun’s outer atmosphere is millions of degrees hotter than its surface

Betelgeuse, the inset image in the middle, is located in the constellation Orion, on the right. New images hint at a small companion star, shown in the inset image on the left, orbiting the supergiant star.

New Images Provide the Best Evidence Yet That Supergiant Star Betelgeuse Does, Indeed, Have a Long-Theorized Stellar Companion

The research team is mostly convinced by the data, but they want to capture additional observations in 2027 to confirm what they’ve found

An artist's impression of the CD-35 2722 star system

Is This Giant Celestial Body a Moon, a Planet or Something in Between? The Strange Object Calls Astronomical Labels Into Question

The newly found object, estimated to be roughly as massive as Jupiter, orbits a brown dwarf—a “failed star”—which in turn circles a small star. For now, researchers are calling the puzzling body an “exosatellite”

The sugar was detected near the center of our Milky Way galaxy, which shines brightly with stars in this artificially colored image.

In a First, Astronomers Find Sugar in the Space Between Stars, Providing New Clues About the Origins of Life on Earth

Sugars are crucial components of RNA and DNA, the basis of all known organisms alive today. In a new study, the sugar erythrulose was detected in a gas- and dust-filled cloud near the center of our Milky Way galaxy

At the end of the calculation, researchers found two symbols they deciphered to mean “so says Sak Tahn Waax.”

Cool Finds

Meet Sak Tahn Waax, a Maya Math Whiz Who Lived More Than 1,000 Years Ago and Left Behind a ‘Really Elegant, Complex’ Formula

For the first time, archaeologists identified one of the culture’s famed Classic era mathematicians and astronomers

Interstellar object 3I/ATLAS, imaged here with its broad coma of gas and dust, has captivated astronomers since its discovery on July 1, 2025.

A Rare Comet Made History as the Third Known Interstellar Object to Fly Through Our Solar System. Studies Are Now Revealing the Mysterious Conditions in Which It Formed

In the latest research, telescope observations of 3I/ATLAS examine its chemical structure and suggest that it took shape in a peripheral region of a relatively calm planetary system

Black Canyon of the Gunnison National Park is one of Colorado's International Dark Sky Parks.

Stay Up Late and Admire the Cosmos With This New ‘Stargazing Trail’ That Links Certified Dark Sky Destinations

The initiative debuts as Colorado gears up to celebrate the 150th anniversary of its statehood

Tatooine is a fictional desert planet with two suns. No such planet had been found when this scene in Star Wars: Episode IV–A New Hope ​​​​​​was created.

Astronomers Discover 27 Potential Planets Each Orbiting Two Stars, Just Like the Fictional Tatooine in ‘Star Wars’

The findings could more than double our current database of worlds that loop around binary star systems. But researchers need to analyze more data before they can officially celebrate a new trove of far, far away exoplanets

The astrolabe weighs more than 18 pounds.

This Giant 400-Year-Old Astrolabe—Made by Mughal Master Craftsmen and Owned by Royalty—Fetched Millions at Auction

Ancient Greek astronomers and early Islamic scientists used astrolabes as mechanical computers to calculate time, determine height and navigate by the stars

An artist's concept of comet 41P as it approached the sun, turning some of its ice into gaseous jets

In a First, an Astronomer May Have Witnessed a Comet Stop Its Spin—Then Reverse Its Rotation

Archival images snapped by the Hubble Space Telescope revealed the unusual event

Stars in the ancient dwarf galaxy Pictor II

Astronomers Discover a Rare Primitive Star That Provides a Chemical Snapshot of the Early Universe

PicII-503 is likely a second-generation star, born from the remnants of the very first stars, according to a new study

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A Meteor Streaked Across the Morning Sky as a Dazzling ‘Fireball’ Before Exploding With a Thunderous Boom Above Ohio

A six-foot-wide, seven-ton asteroid caused the rare celestial spectacle

Dimorphos, on the lower right, surrounded by debris moments after DART's collision in September 2022. The asteroid's larger companion, Didymos, is on the left. 

NASA’s Asteroid-Smashing DART Mission Changed a Space Rock’s Orbit Around the Sun, Marking a First for Humanity

Studying the 2022 collision’s effects can help scientists protect the Earth from celestial objects that might head toward us

Galileo's handwritten notes in a 1551 copy of Ptolemy's Almagest

Cool Finds

A Scholar Recognized the Inscriptions in the Margins of This Manuscript. The Scribbles Turned Out to Be Galileo’s Handwritten Notes

Found in a 16th-century copy of an ancient astronomy treatise, the annotations suggest that the trailblazing scientist studied Earth-centric models before lending his support to heliocentrism

CDG-2 as seen by the Hubble Space Telescope

Astronomers Spotted a Galaxy That’s Made Up Almost Entirely of Dark Matter

The researchers found the galaxy thanks to the Hubble Space Telescope

An artist's rendition of an imploding star, surrounded by expelled gas and dust shown in red

A Star Suddenly Brightened, Then Faded Into Darkness. Astronomers Say It May Have Turned Into a Black Hole

If confirmed, this disappearing act might provide the closest and best observational evidence for the birth of a black hole

Shenzhou-15 spacecraft debris streaked across the sky above California in April 2024. 

Sonic Booms and Earthquake Sensors Can Help Researchers Track Space Junk as It Plummets to Earth

Falling debris can travel at about 30 times the speed of sound, creating sonic booms that shake the ground

Researchers were shocked to find a shock wave around a dead star. 

This Mysterious Gas Cloud Spotted Around a Dead Star Is Beautiful—but Astronomers Say It Shouldn’t Be There

The stellar corpse is spewing star stuff, which is heating and compressing surrounding gas, resulting in a multicolored display. But it’s missing a component thought to be necessary for this phenomenon

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