Could Life on Earth Have Originated Elsewhere?

Octopuses are probably Earth natives, but that doesn't mean life can't travel between worlds.

A Newly Discovered Object Hints at Planet Nine
Astronomers found a strange dwarf world that provides even more evid…
MACS1149-JD1, seen as it was 13.3 billion years ago
Stars May Have Formed 250M Years After Big Bang

The search for "cosmic dawn" continues.

supermassive black hole
Fastest-Growing Black Hole in the Universe Found
The supermassive black hole is a reminder of the violence of the ear…
How to Fly a Helicopter on Mars
Flying a helo in the hairline atmosphere of Mars is one of JPL's big…
An Asteroid Will Narrowly Miss Earth Today And You Can Watch

Asteroid 2010 WC9 will come within about half the distance from the Earth to the moon.

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NASA Flew Right Though a Watery Plume From Jupiter's Moon in 1997—And Didn't Know It

Peculiar readings from the Galileo mission provide the strongest evidence yet for geysers on the surface of the icy moon.

See Saturn's Rings and Three Moons In Cassini Photo

Though the spacecraft has finished its epic Saturn mission, it's still delivering spectacular views.

Some of Kepler's Discovered Planets Might Not Be Real After All

A new paper calls into question some of the thousands of planet's NASA's Kepler spacecraft has discovered.

Block 5 Lifts Off—SpaceX's Newest Rocket (Updated)

After an aborted attempt yesterday, Block 5 successfully launches to space.

SpaceX Scrubs Falcon 9 Block 5 Launch for Today (Updated)

The upgraded Falcon 9 Block 5 is ready to fly the Bangabandhu-1 satellite for Bangladesh.

nasa 3d printed rocket engine
NASA Successfully Test Fires 3D-Printed Rocket Engine Part

The test represents years of work on 3D-printed rocket engines.

lunar dust
Statically Charged Lunar Dust Is Very, Very Bad for Your Lungs

The health effects of breathing lunar dust over long periods of time could be severe.

Extremely Large Telescope Construction Is Under Way in Chile

The ELT will be the largest optical/near-infrared telescope in the world, with a primary mirror stretching 39 meters.

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The Spaceport Subsidy? Congress Is About To Sink Big Dollars Into Pushing Private Space

The space launch sites popping up all over America could soon be in line for some big federal dollars.

Should We Really Be Mining in Space?

Soon, we'll be able to start mining asteroids for resources. But what if space mining leads to more conflicts on earth?

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ULA Launches NASA's InSight Spacecraft to Mars (Updated)

InSight has started its six-month journey to Mars.

The Math Behind Discovering Exoplanets

How we learn so much from seeing so little.

SpaceX Test-Fires New Falcon 9 Block 5 Rocket Ahead of Maiden Flight (Updated)

The Falcon 9 Block 5 has improved thermal coating, more thrust, titanium grid fins, new fairings, and plenty more upgrades.

The First Interplanetary CubeSats Are Set to Fly to Mars

Small satellites have started to fill the orbits of Earth. Now NASA is sending the first pair to Mars.

artist conception krusty
NASA Tests Mini-Nuclear Reactors for Moon and Mars

Keeping the lights on shouldn't be a problem for interplanetary explorers thanks to Kilopower.

stephen hawking
Stephen Hawking's Final Theory of the Universe Has Been Published

The famed physicist reworked some of his old ideas.

Private Companies Took Over Rocket Launches. Can They Do the Same For Moon Landers?

NASA has decided to scrap its own rover, Resource Prospector, and fund lunar lander programs from private industry.

The Plan to Return Samples From Mars Takes a Step Forward

NASA and ESA agree to explore concepts for returning a precious sample of red soil.

Meet InSight: The Mission To Measure Marsquakes and Unlock the Red Planet

The InSight lander blasts off from California on May 5 to begin a six-month journey to Mars

We Can Explore Instead of Believe: Inside the Epic Hunt for E.T.

After a millennia of wondering, humanity can finally search out intelligent alien life—and SETI is leading the charge.

This Is the First Color Image From Europe's New Mars Orbiter

The ExoMars Trace Gas Orbiter will search for hints of methane and other signs of life in the martian atmosphere.

How a Star Mapping Satellite Could Find Alien Life

Want to find Dyson spheres? Gaia, a satellite staring at nearly every star in the galaxy, might be able to lend a hand.

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