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Astronomy

311 articles

Behold These Hidden Galaxies
- By Bob Grant
- July 11, 2025
Up to 100 tiny orphan galaxies may lurk in the shadows of our own Milky Way
Our Busy Universe
- By Katherine Harmon Courage
- July 8, 2025
A sliver of space from the Vera Rubin Observatory
Rethinking the Big Bang
- By Tom Metcalfe
- June 26, 2025
The largest map of the universe reveals giants at the birth of the universe
The Woman Behind the World’s Biggest Camera
- By Molly Glick
- June 23, 2025
Vera Rubin overcame abundant obstacles to become a leading light in cosmology
How to Build a Planet from Dust
- By Katherine Harmon Courage
- June 17, 2025
The answer is blowing in the (stellar) wind
Stranger Things in the Universe
- By Paul M. Sutter
- June 9, 2025
New data about dark energy is a reminder that cosmology is a never-ending story
A Tiny Star Poses Big Questions
- By Molly Glick
- June 4, 2025
A small red dwarf seems to have birthed a hulking gas giant, upending prevailing theories of planet formation
View the Sun’s Freckles Closer Than Ever
- By Molly Glick
- June 2, 2025
A telescope upgrade offers an unusually crisp look at solar chaos
A Clear View of the Sun’s Fireworks
- By Bob Grant
- May 30, 2025
Optical advances yield an unprecedented look at the corona dancing around our nearest star
A Mars Moon Rises at Dawn
- By Tom Metcalfe
- May 28, 2025
The image hints at a longstanding mystery

Moon Marbles Hint at Lunar Depths

A mantle-rocking asteroid impact could have made curious glass beads on the surface
- By Bob Grant
- May 16, 2025
From the Debris of Halley’s Comet

This week, chunks of the famous comet will fall to Earth in the Eta Aquarids meteor shower
- By Katherine Harmon Courage
- May 5, 2025
Revisiting an Iconic Space Hat

The Sombrero Galaxy returns in a revamped Hubble image
- By Molly Glick
- April 28, 2025
Why We Might Not Find Life on Titan

At most, its oceans may contain biomass equivalent to a small dog
- By Tom Metcalfe
- April 25, 2025
Planet Nurseries Are Smaller Than We Thought

An explanation for the abundance of super-Earths
- By Tom Metcalfe
- April 14, 2025
Searching for Alien Life Along the Cosmic Shoreline

How planets gain and lose atmospheres might give us a new map of where to look for life
- By Elise Cutts
- April 7, 2025

Neutron Stars Hint at Another Dimension
- By Paul M. Sutter
- April 4, 2025
Are the mysterious stars clues to one of the greatest mysteries in the universe?
How Pebbles Form Planets
- By Tom Metcalfe
- March 31, 2025
It starts with static electricity and dust swirling around young stars
Ballooning Around Venus
- By Tom Metcalfe
- March 6, 2025
A scientist floats a new idea for exploring Earth’s twin
Intelligent Life May Be Hiding in the Moons
- By Sean Raymond
- February 27, 2025
Why exomoons could sustain ET as well as any exoplanet
The Slingshot Effect of Gravity
- By Tom Metcalfe
- January 28, 2025
The pull of the planets is still one of our best bets for space exploration