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What would it be like to find signs of life beyond Earth?

Before We Find Aliens, Humans Need to Figure Ourselves Out

By Meghan Bartels

Humans have questions about alien life. But those beings, if they exist, likely have some questions of their own about humans, queries we may want to answer before we find any life beyond Earth.

An illustration shows how laser light (represented by the glowing orbs) hits a charge density wave, it changes the wave's behavior.

New, 'Hidden' State of Matter Coaxed into Being by Ultrafast Laser Flashes

By Rafi Letzter

Physicists think this might be the first of many hidden states of matter that could be uncovered using laser flashes.

An artist's depiction of NASA's Parker Solar Probe gathering data about the sun.

The 1st Sun Details from NASA's Parker Solar Probe Are Out. And They're Hot!

By Meghan Bartels

Want to see the sun in a whole new way?

NASA astronaut Andrew Morgan (left) and European Space Agency astronaut Luca Parmitano work inside the Quest airlock to check their spacesuits and tools before beginning a series of spacewalks to repair the Alpha Magnetic Spectrometer.

Astronauts Are Taking a Tricky Spacewalk to Fix a Dark Matter Experiment. Here's How to Watch

By Tariq Malik

A photo of the Alpha Magnetic Spectrometer (AMS) experiment outside the International Space Station. NASA astronaut Ron Garan took this photo during a spacewalk on July 12, 2011. The space shuttle Atlantis is docked at the edge of the frame on the far right, and a Russian Soyuz spacecraft is docked to Pirs, below the sun.

Watch Live Now! Astronauts Tackling Tough Repair Spacewalk at Space Station

By Space.com Staff

Vice President Mike Pence talks about space exploration during a Nov. 14, 2019, talk at NASA's Ames Research Center in Silicon Valley.

'Artemis Is Here:' Vice President Pence Stresses Importance of 2024 Moon Landing

By Mike Wall

Fifty years to the day after the United States launched the second-ever crewed mission to the surface of the moon, Vice President Mike Pence stressed the importance of going back.

Tech

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Space junk created by a 2007 Chinese anti-satellite test hit a Russian satellite on Jan. 22, 2013.

US Must Adapt to Fight Growing Space-Based Threats, Air Force Officials Say

By Mike Wall

The U.S. Air Force must change the way it does business to fight the growing threat to the nation's dominance of the final frontier, military officials say.

Researchers are designing a stingray-shaped spacecraft to explore the dark side of Venus.

This Stingray-Shaped Spacecraft Could Be Perfect For Exploring Venus' Dark Side

By Chelsea Gohd

Could a stingray-shaped spacecraft get to the dark side of Venus by flapping its wings?

Spaceflight

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A photo of the Alpha Magnetic Spectrometer (AMS) experiment outside the International Space Station. NASA astronaut Ron Garan took this photo during a spacewalk on July 12, 2011. The space shuttle Atlantis is docked at the edge of the frame on the far right, and a Russian Soyuz spacecraft is docked to Pirs, below the sun.

Watch Live Now! Astronauts Tackling Tough Repair Spacewalk at Space Station

By Space.com Staff

This image shows a lightning bolt hitting the mobile launch tower at Pad A, Launch Complex 39, at Kennedy Space Center during the launch of the Apollo 12. Lightning struck the Apollo 12 rocket twice, first at about 36.5 seconds after lift-off and again at 52 seconds. Nov. 14, 1969.

50 Years Ago: NASA's Apollo 12 Was Struck By Lightning Right After Launch ... Twice! (Video)

By Chelsea Gohd

Seconds after Apollo 12 launched, it was struck by lightning twice.

Science & Astronomy

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An illustration shows how laser light (represented by the glowing orbs) hits a charge density wave, it changes the wave's behavior.

New, 'Hidden' State of Matter Coaxed into Being by Ultrafast Laser Flashes

By Rafi Letzter

Physicists think this might be the first of many hidden states of matter that could be uncovered using laser flashes.

Fuzzy spicules rise out of the sun's lower atmosphere, called the chromosphere.

A Million Geysers of Plasma Spout from the Sun, and Scientists May Finally Know Why

By Charles Choi

When it comes to the mystery behind what causes jets of plasma that regularly erupt from the sun, clues have now emerged suggesting magnetic clashes on the surface of the sun may be the culprits.

Search For Life

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Lighter colors represent higher elevation in this image of Jezero Crater on Mars, the landing site for NASA's Mars 2020 mission. The oval indicates the landing ellipse, where the rover will be touching down on Mars.

NASA's Life-Hunting Mars 2020 Rover Will Search for Alien Microfossils

By Mike Wall

If life once existed in Jezero Crater, signs of it may well persist there to this day.

The Dallol hydrothermal pools are harsh environments.

Scientists Find a Spot Where No Life Can Survive. That's Bad News for Alien Hunters.

By Yasemin Saplakoglu

This alien-like world is filled with hydrothermal pools that are some of the most extreme environments on the planet

NASA's Curiosity Mars rover imaged these drifting clouds on May 17, 2019, the 2,410th Martian day, or sol, of the mission, using its black-and-white Navigation Cameras.

1st Methane, Now Oxygen: Another Possible 'Biosignature' Gas Is Acting Weird on Mars

By Mike Wall

Another possible biosignature gas is behaving strangely in Mars' air.

Skywatching

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Former journalist Martin Evans (right) chats with two fellow guests of the Amateur Astronomers Association (AAA) gathering on Monday, Nov. 11, 2019, in Floyd Bennett Field, New York. Peering through the Orion EZ Finder II telescope is a mother who brought her children to the viewing event; standing to the left is amateur astronomer Stephen Lieber.

New Yorkers Celebrate Rare Mercury Transit by Staring at the Sun (Safely) with Wonder

By Doris Elin Urrutia

Near the edge of Jamaica Bay in New York City, about a dozen people gathered to watch Mercury travel across the sun.

A fireball meteor lights up the night sky above the Gateway Arch in St. Louis on Nov. 11, 2019.

Watch a Brilliant Fireball Flash Over St. Louis' Historic Arch (Video)

By Samantha Mathewson

A bright fireball meteor streaked across the night sky above Missouri Monday (Nov. 11), passing over St. Louis' iconic Gateway Arch.

The nearly full supermoon Beaver Moon rises over the Syr Darya river near the Baikonur Cosmodrome spaceport in Kazakhstan on Nov. 13, 2016 in this view by NASA photographer Bill Ingalls.

November Full Moon 2019: See the 'Beaver Moon' (and Meteors) Tonight!

By Jesse Emspak

The full moon of November, called the Beaver Moon, will shine in the constellation Aries on Nov. 12, the same day as the peak of the Northern Taurid meteor shower.

Entertainment

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Ronald D. Moore's "For All Mankind" on to Apple TV+ has been renewed for a second season.

'For All Mankind' on Apple TV+ Officially Renewed for Season 2

By Tariq Malik

After nearly a month of reports, Apple TV+'s fictionalized version of the 1960s race to the moon, "For All Mankind," has officially been renewed for a second season.

IG-11 and the Mandalorian portrayed together in artwork that features during the end credits.

'The Mandalorian' Episode 1 Perfects the Small-Screen 'Sci-Fi Western'

By Scott Snowden

Disney's first live-action "Star Wars" TV show proves the franchise can work on the small screen.

UCB's 'George Lucas Talk Show' Lands at NYC's Intrepid Sea, Air & Space Museum Tonight

By Tariq Malik

Watch out, "Star Wars" fans, the Upright Citizens Brigade is headed to your galaxy far, far away.