Dust, Not Aliens, Is Likely Cause of Star’s Weird Dimming
Even so, the strange saga of Tabby’s Star is far from over
Stories by Mike Wall
To Find Life on Mars, Look Underground
Ancient, buried hydrothermal systems are ideal sites to search for Martian fossils
Weird World: Evaporating Exoplanet’s Orbit Is Askew
The Neptune-mass planet GJ 436b has a comet-like tail and a bizarre orbit that takes it over the poles of its star
Interstellar Visitor Stays Silent--for Now, No Signs of Aliens on 'Oumuamua
The bizarre object is emitting no obvious radio signals, but observations and analyses have just begun
ESPRESSO Gives Planet Hunting a Jolt
New high-performance instrument could reveal hidden habitable worlds around nearby stars
“Equator Trap” May Hinder Search for Alien Life
Bizarre atmospheric circulation patterns could obscure signs of life on some nearby exoplanets
SpaceX’s Planned Giant Rocket Could Chase Down Interstellar Asteroid
A new study charts potential courses for missions to ‘Oumuamua, an oddly-shaped space rock from another star
Interstellar Message Beamed to Nearby Exoplanet
The radio signal directed at a world 12 light-years away included music and math lessons from Earth
Meet ‘Oumuamua, the First-Ever Asteroid from Another Star
An interstellar space rock seen hurtling through the solar system now has a name
New Planet on the Block May Be Habitable
The Earth-mass world orbits a dim, quiet star just 11 light-years away
NASA “Twins Study” Shows How Spaceflight Changes Gene Expression
A nearly year-long stay on the International Space Station revealed boosts in gene methylation
Curiosity Mars Rover Tests Drill after Long Delay
Dormant since late 2016, the rover’s rock-boring drill could soon come back online
Demand for Stephen Hawking's Thesis Crashes Web Site
Downloads of the physicist’s 1966 doctoral thesis overwhelm University of Cambridge servers
U.S. Will Return to the Moon, Pence Says
The Trump administration set NASA on a new course at the first meeting of the National Space Council
New Observations Deepen Mystery of “Alien Megastructure” Star
Orbiting dust could explain some—but not all—of the star’s bizarre behavior
Construction of Thirty Meter Telescope Gets Go-Ahead
The ruling could allow the project to move forward after years of delays and opposition
Sputnik Moments: Trio of Spaceflight Events Shook U.S. in 1957
The Soviet Union launched the world’s first artificial satellite 60 years ago
NASA Postpones Launch of James Webb Space Telescope
The multibillion-dollar observatory is now scheduled to launch in spring of 2019
Fast Radio Bursts Flash throughout the Cosmos
The mysterious and powerful cosmic outbursts could occur as often as once per second in the observable universe
Binary Giant Black Holes Spotted at Galaxy's Core
The objects are separated by less than one light year—the most compact pairing of supermassive black holes ever seen
