Space Science

With Starliner Astronauts Stuck Indefinitely, The ISS Might Tie A 15-Year-Old Spaceflight Record

Star Trek's Science Advisor On How Starfleet Quietly Fixed Relativity

Astronomers Were Looking for a Planet, but They Didn't Expect This One

Evidence of Alien Life May Lie on the Surface of Europa and Enceladus, A New Study Reveals

What Secrets 385 Meteorites Tell Us About The Interior Of Mars

The Full ‘Buck’ Moon This Weekend Will Be Epic — Don’t Miss It

Climate Change is Triggering an Unexpected and Fundamental Planetary Change

Astronomers Stumbled Upon a Planet In the Act of Becoming a Hot Jupiter

Dune's Stillsuits Could Soon be Real Gear for Astronauts

Scientists Just Found Evidence for Hidden Passageways Under the Moon’s Surface

Astronomers Believe A Star Is About To Explode 3000 Light Years From Earth — Here’s How to See It

Ariane 6 vs. SpaceX: How the rockets stack up

Note To Hollywood: Nobody Faked The Moon Landing

Hurricane Beryl Likely Contributed to Boeing Starliner’s Ongoing Delays

Failed Thrusters, Helium Leaks, and a Hard Deadline: Inside NASA’s Decision to Keep Boeing’s Starliner At the ISS

There's a Black Hole Hidden in this Photo of a Digested Dwarf Galaxy

A Yearlong NASA Mars Simulation Revealed the Biggest Obstacle to Colonizing the Red Planet

Europe’s Ariane 6 Rocket Has A New Engine That Can Literally Reignite Itself In Space

This Scorchingly Hot Planet That Rains Down Glass Apparently Also Smells Like Rotten Eggs

Remnants of Mars’s Violent Past Are Hidden In this New ESA Express Orbiter Image

100 Years Ago, One Astronomer Massively Expanded Our Understanding Of the Universe

This Humble Plant Species May Be the Key to Terraforming Mars

We Might Witness A Star Explode Soon — And It’s Not Betelgeuse

NASA Finally Revealed Who Will Help Intentionally Destroy The International Space Station

Almost 30 Years Ago, the Hubble Telescope Stumbled Upon this Enchanting Cosmic Object — Now We Have a 3D Video Of It

15 Years Ago, the International Space Station Accidentally Tested An Unresolved Question

Mars Gets Slammed By Basketball-Sized Meteors Everyday, A New Study Finds

‘Accidental Astronomy:’ A New Book Explores Everything In Space We Found By Accident

The Webb Telescope Found Strange, Sparkling Balls That Might Have Helped Light Up the Universe

What Happens When An Astronaut Gets Really Sick In Space?

20 Years Ago, One Moment Changed Spaceflight Forever

One of Humanity’s Greatest Architectural Feats Will Be Dismantled Soon — What Happens Next?

Lakes On Saturn’s Moon Titan May Be Sculpted By Waves of Literal Liquid Methane

A Weird Final Test for Boeing’s Starliner Uncovered the Likely Cause of Several Recently-Failed Thrusters

June’s Summer Solstice Strawberry Moon Will Be Weirder Than Usual

An Astrophysicist Reveals A Hidden Problem We’ll Encounter If Humans Colonize the Moon

From Urine (Yes, Urine) to Helium: The Most Common and Bizarre Leaks During Space Travel

Boeing’s Starliner Will Attempt A First-Of-Its-Kind Landing For A U.S. Capsule

A Famous Star Trek World Is Actually A Fancy Galactic Illusion

NASA’s Curiosity Rover Captured The Eerie Aftermath of A Solar Eruption Blasting Mars

Elusive Fast Radio Bursts In Space Probably Come From the Most Ordinary Galaxies

A Radio Telescope Captured the Noise Humanity Leaks Into Space

In an Extremely Unlikely First, Scientists Found Frost On the Peak of Mars’ Volcano Olympus Mons

Why Phone Cameras Are the Hidden Secret to Taking Amazing Photos of the Northern Lights

Boeing Starliner Helps ISS Process An “Awful Lot Of” Stored Urine

NASA Needs SpaceX’s Starship to Work — Here’s the Critical Reason Why

Liftoff! Watch Boeing Starliner’s Historic Launch Through These 7 Photos

'The Acolyte' Got Fire In Space Ridiculously Wrong — In Real Life, It's So Much Weirder

This Hot, Inflated Alien World is Good News for Future Earth

Suni Williams Just Became the First Woman To Test Fly An Orbital Spacecraft