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NASA, Getty Images

NASA Reveals How Living in Space for a Year Affected Scott Kelly’s Poop

Astronaut Scott Kelly used cotton swabs to take samples of his fecal matter. He then sealed it in tubes and sent it back to Earth via rocket.

An artist's rendering of a growing supermassive black hole

We Could Be Just Days Away From Seeing the First-Ever Photo of a Black Hole

Capturing an image of the distant, supermassive black hole in the center of our galaxy has been compared to “standing in New York and counting the individual dimples on a golf ball in Los Angeles."

NASA astronaut Nicole Aunapu Mann at an event in August 2018

First Person on Mars Will Likely be a Woman, Says NASA Boss

The human-led mission isn't expected to happen until at least 2030, but when it does, a woman will likely be the first person to set foot on the Red Planet.

NASA

11 Photos From the Opportunity Rover's Mission on Mars

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.

David McNew, Getty Images

Do Mission Control Personnel Go Through as Many Simulations as Astronauts?

Mission control personnel go through a lot more simulations than astronauts. And they don't always go according to plan …

iStock.com/1971yes

What Happens to Your Body If You Die in Space?

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

Artist's depiction of NASA's InSight lander parachuting toward the surface of Mars.

How to Watch NASA's Live Stream of the InSight Mars Landing

After covering 91 million miles of the solar system, the robotic lander is set to make contact with the Red Planet's Elysium Planitia this afternoon.

NASA/JPL-Caltech/MSSS

NASA Just Launched a New Podcast, and It's All About Mars

The last episode will detail InSight's attempt to land on Mars on November 26.

NASA, Getty Images

How the Hubble Space Telescope Helped the Fight Against Breast Cancer

NASA technologies have dozens of applications outside of space exploration.

Noam Galai, Getty Images

10 Memorable Neil deGrasse Tyson Quotes

America's preeminent badass astrophysicist turns 60 years old today.

NASA/JPL/Cornell University

Astrophysicists Are Selling Lab-Made Martian Dirt to Researchers for $20 a Kilogram

The Kennedy Space Center has already ordered half a ton of the stuff.

ESA/Hubble, NASA, A. Simon (GSFC) and the OPAL Team, J. DePasquale (STScI), L. Lamy (Observatoire de Paris)

Here's What the Northern Lights Look Like on Saturn

The phenomenon is not limited to our planet.

Katherine Johnson at NASA's Langley Research Center, 1980.

10 Fascinating Facts About Katherine Johnson

Before she helped send the first astronauts to the moon, Katherine Johnson was an anonymous “computer” doing thankless but vital work at NASA.

NASA Goddard Space Flight Center

5 Goals of the OSIRIS-REx Mission to the Asteroid 'Bennu'

The spacecraft will use a robotic arm to scoop up a sample of Bennu and then return it to Earth.

NASA

NASA Found 'Definitive Evidence' That There's Water Ice on the Moon

Huge news for future Moon explorers.

iStock

Could an Astronaut Steal a Rocket and Lift Off, Without Mission Control?

You might want to think twice before trying it.

Earth as captured from near the lunar horizon by the Lunar Reconnaissance Orbiter in 2015.

The Science Behind Why the Earth Isn't Flat

Let's review why and how we've known for at least 2300 years that the Earth is round.

NASA/Getty Images

What Happens When an Astronaut Gets Sick in Space?

To barf bags and beyond.

NASA/JPL-Caltech

You Can Now Build Your Own Mars Rover for About $2500

Download the plans for free.

Vice President Spiro Agnew and former President Lyndon Johnson view the liftoff of Apollo 11

Watch Apollo 11 Launch

Apollo 11 launched on July 16, 1969, on its way to the moon.

Public Domain, Flickr

Why Do Astronauts Use Space Pens Instead of Pencils?

One technological breakthrough left the common pencil in the dust.

iStock

NASA Has a Plan to Stop the Next Asteroid That Threatens Life on Earth

Don't panic—the U.S. government has a plan for doomsday.

From left: Wally Schirra, Deke Slayton, Gus Grissom, Christopher Craft of the Mercury Operations Division, Gordon Cooper, Scott Carpenter, John Glenn, and Alan Shepard.

Were You Meant to Be an Astronaut? Try Passing NASA's Project Mercury Intelligence Test

Would you have been qualified to be an astronaut back in 1958?

Lawrence Livermore National Laboratory, Wikimedia Commons // CC BY-SA 3.0

7 Giant Machines That Changed the World—And 1 That Might

From a 17-mile-long particle accelerator to a football field–sized space observatory, these machines are marvels.