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Astronomy

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

Saturn's rings are surprisingly young

A Smashing New Proposal About Saturn’s History Might Explain Its Iconic Rings and Some of Its Odd Moons

A crash involving the planet’s largest moon, Titan, and a hypothetical moon may have triggered a curious sequence of events

An artistic rendering of the 'inside out' solar system

Astronomers Discover an Exoplanet in the Wrong Place, Hinting at a Planetary System That Was Born ‘Inside Out’

A rocky planet was found orbiting its host star in an unusual location

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

The particle collider smashes together atomic nuclei—comprised of particles called protons and neutrons—to break them into their smaller components.

The U.S.’s Only Particle Collider Recreated Moments From the Early Universe. Now, It Has Closed—to Make Way for a New Instrument

The end of the facility’s 25-year run is “bittersweet”

An artist's impression of an asteroid

An Asteroid Might Slam Into the Moon in 2032—and Create a Fiery Flash That’s Visible to Earthlings, New Research Suggests

Currently, NASA estimates that asteroid 2024 YR4 has a 4.3 percent chance of hitting our lunar companion

The JADES-ID1 protocluster

Astronomers Spot a Huge Cluster of Galaxies Forming Earlier in Cosmic History Than Thought Possible

The young galaxy cluster existed about 12.8 billion years ago and has an estimated mass 20 trillion times that of the sun

Researchers are using an instrument at the SLAC National Accelerator Laboratory to uncover the original text of reused parchments.

Medieval Monks Wrote Over a Copy of an Ancient Star Catalog. Now, a Particle Accelerator Is Revealing the Long-Lost Original Text

The parchments initially contained references to a star catalog and maps created during the second century B.C.E.

An image containing nearly 800,000 galaxies from NASA's James Webb Space Telescope, overlaid with dark-matter clumps shown in blue

See the Most Detailed Map of Dark Matter Ever Made, Bringing Astronomers a Step Closer to Unraveling Its Mysterious Nature

The invisible stuff makes up about 85 percent of all matter in the universe, but researchers know little about it

Ice can take on more than 20 forms, or phases, depending on the temperature and pressure conditions as water crystallizes.

Researchers Discover a New Phase of Ice by Squeezing Water Between Diamonds

The new form, called Ice XXI, appeared at room temperature in the lab, and it may have a similar density to ice on distant moons in our solar system

A "bar" of iron atoms, colored red in this image, has been hiding inside the Ring Nebula.

Cool Finds

Astronomers Discover a Mysterious Bar-Shaped Cloud of Iron Within the Iconic Ring Nebula

Humans have been eyeing the colorful Ring Nebula for nearly 250 years, but testing out a new telescope tool led to the perplexing finding

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

Cloud-9, shown in magenta. The circle represents the region where researchers focused their search for stars—the peak of radio emission.

Astronomers Find an Odd Space Cloud, Like a Galaxy Without Stars, That Could Shed Light on the Secrets of Dark Matter

Named “Cloud-9,” the discovery is a new type of celestial object known as a RELHIC, which is unlike anything scientists have ever observed

An artistic representation of a galaxy cluster forming shortly after the universe began

Cool Finds

This Early-Universe Cluster of Galaxies Is Way Hotter Than It Should Be

Gas within the cluster, which existed merely 1.4 billion years after the Big Bang, is at least five times hotter than computer simulations predict it should be, a study suggests

Look up throughout the year to catch a wide array of astronomical sights.

Don’t Miss These Ten Celestial Events in 2026, From Aligned Planets to a Total Solar Eclipse

The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since April 2024

An artistic representation of a superkilonova

In a First, Astronomers May Have Witnessed a Rare Double Explosion of a Star Called a Superkilonova

A massive star may have burst, leaving behind two dense, dead cores, which then collided and caused another explosion

An artistic representation of exoplanet PSR J2322-2650b, on the left, and the pulsar it orbits, on the right

This Lemon-Shaped Planet Has an Atmosphere Unlike Anything Astronomers Have Ever Seen

The James Webb Space Telescope detected an atmosphere rich with carbon and helium, which is unexpected on this hot planet roughly 2,000 light-years from Earth

In 2025, researchers watched an interstellar comet, learned about human origins and traced the spread of measles.

The Ten Most Significant Science Stories of 2025, From Medical Breakthroughs to an Interstellar Visitor

All year long, these moments captivated the public, demonstrated dangerous trends, and pushed research and innovation forward

Six infrared images of Titan created with data from NASA's Cassini spacecraft

Saturn’s Moon Titan May Not Have an Underground Ocean After All

A new analysis of data from NASA’s Cassini spacecraft may upend Titan’s status as an ocean world. But it might still have pockets of water within a slushy ice layer

David Rankin, operations manager at the Catalina Sky Survey, keeps tabs on space rocks in search of new and potentially hazardous asteroids.

From a Remote Observatory, He’s Defending Our Planet. Get a Glimpse Inside the Life of a Doomsday Asteroid Hunter

David Rankin of the Catalina Sky Survey in Arizona spends nights scanning the solar system for potentially catastrophic space rocks. Here’s what he has to say about that “high consequence” work, an interstellar comet and living with uncertainty

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