Astronaut floating in space


What Happens If an Astronaut Dies in Space?

Two words, many problems: Space. Corpse.

China's FAST Telescope Picking Up Strange Signals

Are they coming from a black hole?

Astronomers Observe Most Massive Neutron Star Ever

It's 15 miles across with a mass of more than twice the sun.

black hole center galaxy
Black Hole at the Center of Our Galaxy Is Growing
"It's usually a pretty quiet, wimpy black hole on a diet. We don't k…
Full Moon Of Friday The 13Th
On Friday the 13th, See a Full 'Micromoon' Tonight

A creepy day gets even creepier.

Saturn Is Still Stunning

Not that there was ever any question. But hey, would you look at those rings?

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European Space Agency astronaut Alexander Gerst works on the MICS experiment aboard the International Space Station.
Why Astronauts Are Growing Cement in Space

If the stuff can harden in the microgravity of the ISS, imagine where else it could work.

We Just Found Water Vapor in the Atmosphere of a Potentially Habitable Exoplanet

K2-18b isn't a perfect spot for life, but it's a good start toward learning more about habitable planets around small stars.

Virgin Galactic Test Flights
Richard Branson's Plans for Space Tourism Sure Are Aggressive

Move aside, Musk. Within four years, the Virgin honcho wants to send people to space every 32 hours.

Why Is It So Damn Hard to Land on the Moon?
NASA Stumped by Weird Green Blobs

What are they doing up there?

India Loses Contact With Lander On Final Descent

Indian Space Research Organization has not yet issued an official statement.

Man, These Great Elephant's Trunks Are a Galactic Wonder

They could help create stars and planets.

The Fastest Spacecraft Ever Zips Past the Sun for a Third Time

It's on a mission to reveal the sun's long-held secrets.

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Two ESA and SpaceX Satellites Almost Collided, Because There Are No Laws in Space

And you thought traffic was bad on Earth.

NASA Is Using This Big Boy to Move Its Mobile Launcher Indoors

To prepare for Hurricane Dorian, the agency has brought out its massive Crawler-Transporter.

In a Major Milestone, the James Webb Space Telescope Is Whole at Last

Engineers have successfully connected the two halves of NASA's troubled Hubble successor.

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Why the Curiosity Rover Is Taking a Break

Blame the sun.

SpaceX's Starhopper Successfully Completes Final Test Flight

This was the second and final flight for the SpaceX test rocket.

How to Build a Wormhole

Pretty simple, actually.