Are Alien Microbes Clinging to the International Space Station? Probably Not
A report out of Russia claims extraterrestrial bacteria has been found on the space station, but there’s plenty of room for doubt
In Attempt to Contact Intelligent Life, Group Sends Musical Signal Toward Planet GJ 273b
Though the chances are slim, the team hopes this latest transmission is just the first of many
Earth-Sized Planet Detected Just 11 Light Years Away
Orbiting the star Ross 128, our new planetary neighbor is thought to be temperate, with days up to a balmy 68 degrees Fahrenheit
Our Nearest Neighbor Might Harbor Its Own Solar System
New data from Proxima Centauri shows it has a ring of cold dust—a sign that many planets may orbit the distant star
Jupiter’s Auroras Are Surprisingly Out of Sync
X-ray bursts from the poles are expected to line up, but the south is regular while the north produces haphazard bursts
Could a Magnetic Shield Protect Earth From Space Weather?
A bad geomagnetic storm would fry the electric grid and cripple civilization for years—a space shield is cheap by comparison
Astronomers Detect 15 Mysterious Fast Radio Bursts From a Distant Galaxy
The new cosmic blasts may help researchers finally figure out what’s producing the energy in space
Could We See Glow-in-the-Dark Aliens From Earth?
Extraterrestrial life might make its own light to protect itself from harmful radiation
Mars Surface May Be Too Toxic for Microbial Life
The combination of UV radiation and perchlorates common on Mars could be deadly for bacteria
The “Alien Megastructure” Star Is Acting Up Again
A large dip in the star’s brightness suggests something massive is orbiting the fiery body
Now You Too Can Own a Piece of Space History
The engraver who inscribed Carl Sagan’s and Frank Drake’s 1973 message to extraterrestrials is now taking orders
Why Morning Glories Could Survive Space Travel
The seed of the common garden flower could survive long journeys in space
The Case for Going to Venus
Sending a probe to Earth’s lifeless twin could help us understand how life rises—and falls—on faraway planets
Are Fast Radio Bursts from Alien Spacecraft? It’s Unlikely, but Possible
A new paper raises the (distant) possibility that the unusual high-energy bursts from the cosmos are from intergalactic ships
When Humans Begin Colonizing Other Planets, Who Should Be in Charge?
The biggest threat humans pose to other worlds is what we don’t know—or what we think we know, but don’t
“Are We Alone in the Universe?” Winston Churchill’s Lost Extraterrestrial Essay Says No
The famed British statesman approached the question of alien life with a scientist’s mind
The Great Flying Saucer Mystery of 1966
When policemen spotted a “flying saucer” in 1966, an official investigation declared it was an optical illusion created by swamp gas
How a Couple of Guys Built the Most Ambitious Alien Outreach Project Ever
You might think it takes vast governmental resources to launch an extraterrestrial communication effort. Nope
How the Next Generation of Mars Rovers will Search for Signs of Life
The Mars 2020 rover doesn’t even have a name yet—but it already has an ambitious goal
That “Strong” SETI Signal Probably Isn’t Aliens
Sorry folks, E.T. is still not phoning home
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