Space

If you live in a northern state like Wisconsin, Minnesota, or Maine, you have a good chance of catching the Northern Lights on Wednesday, February 27.

He sat on his heliocentric theory of the universe for 30-some years, and only published his ideas on his deathbed.

It's our closest neighbor in the solar system, but we still have a lot to learn about the Moon—from how it formed to what's on its dark side.

Galileo Galilei in an oil painting by an Italian painter, 18th (?) century.

Galileo Galilei, the father of modern astronomy, probably never dropped anything off the leaning tower of Pisa, and he didn't actually invent the telescope. But he did change history with his discoveries about the cosmos.

The next supermoon will light up skies on Tuesday, February 19. This one will be a snow moon, a full moon that comes only at this time of year.

In 2004, the rover Opportunity landed on Mars. Originally intended to serve a mere 90-day mission, the rover instead beamed back scientific discoveries for more than a decade—and now its groundbreaking mission is over.

simonbradfield/iStock via Getty Images Plus

In 1969, the government shut down its infamous study into UFOs—and people have been talking about it ever since.

Few space stations want a body stinking up the place. Fortunately, there's always the garbage room.

Though it's freezing on its surface, primitive life might be lurking somewhere below.

Over the course of his life, Aldrin has learned a lot, and he’s shared his wisdom in a number of books and interviews.

From the first manned Moon landing to Monty Python, here are 50 things marking a half-century on this planet (and beyond).

When you really think about how recent some discoveries we take for granted are, Pluto and Clint Eastwood have a lot in common.

Don't miss the first meteor shower of 2019.

Deefaze, Wikimedia Commons // CC BY-SA 4.0

To infinity and beyond, Astrocat.

A blood moon as seen from Sydney, Australia on July 28, 2018

Here's when to see it.

They formed when a crater hit the spot 15 million years ago.

An artist's rendering of the dwarf planet Eris

Eris was once thought to be larger than Pluto.

NASA technologies have dozens of applications outside of space exploration.

NASA was officially established in October 1958. Just two years later, the agency started what would become one of the defining programs of the 20th century—Apollo, which put humans on the moon in 1969.

Some insects act differently during an eclipse. Bees are one of them.

How to Catch the Northern Lights When They Appear Over the U.S. This Week

15 Facts About Nicolaus Copernicus

11 Spectacular Facts About the Moon

15 Fascinating Facts About Galileo

A Snow Moon—the Year’s Brightest Supermoon—Will Be Visible Next Week

11 Photos From the Opportunity Rover's Mission on Mars

9 Facts About Project Blue Book, the Government's Top-Secret UFO Program

What Happens to Your Body If You Die in Space?

Life on Nearby Exoplanet Barnard's Star B Might Be Possible, According to Astronomers

15 Fantastic Buzz Aldrin Quotes

50 Things Turning 50 in 2019

10 Discoveries and Inventions That Are More Recent Than You Think

The Quadrantid Meteor Shower Peaks Tonight—Here's How to See It

A Brief History of Félicette, the First Cat in Space

Mark Your Calendars: A Rare Super Blood Wolf Moon Is Coming in January 2019

There Are 72,000 Tons of Diamonds Hiding Throughout This Town in Germany

10 Facts About the Dwarf Planet Eris

The Geminid Meteor Shower Peaks Next Week: Here's When and Where to See It

The Leonid Meteor Shower Peaks This Weekend—Here's the Best Way to See It

Two Harvard Scientists Suggest 'Oumuamua Could Be, Uh, an Alien Probe

The Orionid Meteor Shower Peaks This Weekend

How the Hubble Space Telescope Helped the Fight Against Breast Cancer

17 Facts About the Apollo Program

Bees Across America Stopped Buzzing During Last Year's Total Solar Eclipse