Why the Pentagon Is Declassifying Space Traffic

There’s a push underway to release more data about things the Pentagon is tracking in orbit. It’s a sign of things to come as Uncle Sam tries to make space a more friendly place for business.

Cosmonauts Spacewalk to Uncover Cause of Air Leak
The small hole was found in late August, and now two cosmonauts are …
voyager 2 interstellar space
Voyager 2 Enters Interstellar Space
After 41 years, NASA's longest-running mission joins its sibling in …
This Is the Golden Age of Space Exploration
An emerging golden age of probes may reimagine the origin story of o…
Good News: The New ISS Robot Already Going Rogue
Like a certain fictional sci-fi robot, CIMON doesn't always like to …
Meet the Spacecraft That's About to Play Tag with an Asteroid

Engineers describe how to design a gadget that can grab parts of an asteroid—without even landing on it.

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Here's Our First Look at China's New Space Station

China's under-construction Tiangong-2 space station will have a new core module, showcased at a Chinese air show.

The Kepler Satellite Is Officially Going Offline Forever

After lasting longer than anyone expected, it finally ran out of fuel.

A Group of Scientists Want to Launch a Satellite to Make an Artificial Aurora

The proposed satellite would probe the connections between Earth's upper atmosphere and its magnetic field.

The BepiColombo Probe Is About to Being a 7-Year Mission to Mercury

BepiColombo will shine a light on the odd little planet—once it gets there.

Chengdu skyline aerial view
China Wants to Replace Streetlights With a Trio of Artifical Moons

If it works, the plan could save the city of Chengdu hundreds of millions of dollars per year.

voyger 1 and voyager 2 heliosphere
Voyager 2 Is Getting Close to Interstellar Space

It's picking up readings similar to Voyager 1 when it made the leap.

space junk artist representation
New Space Junk Solution Would Clean Up Debris With Ion Beams

Originally meant as asteroid defense, a plasma system could find a new purpose.

space junk net testing
Space Junk Net Successfully Completes Capture Test

In a first, a net was able to track down its target in space.

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NASA's Asteroid Belt Spacecraft Dawn Is About To Run Out of Fuel

Dawn has spent nearly a decade studying Ceres and Vesta, but it's time is running out.

Space Elevators Getting First Test in Space

A long way to go, but a Japanese construction company wants to build one by 2050.

Space Shuttle Endeavour Makes Last Trip To ISS Under Command Of Astronaut Mark Kelly
Russia: The ISS Air Leak May Have Been Sabotage

The hole discovered by ISS astronauts last week appears machined, raising concerns it was deliberate.

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Space Shuttle Endeavour Makes Last Trip To ISS Under Command Of Astronaut Mark Kelly
An Astronaut Plugged the Leak on the Space Station With his Finger

The ISS astronauts later used tape and gauze to seal the hole more permanently.

NASA IMAGE Satellite
NASA Already Lost the Satellite It Just Found in January

The IMAGE satellite was lost in 2005 and rediscovered early this year. Now, NASA says it may have lost it again.

NASA's New Spacecraft Will Fire High-Powered Lasers at Ice

ICESat-2 will give scientists a clear picture of exactly how polar ice is changing.