The Universe’s Clock Might Have Bigger Ticks Than We Imagine
A new experiment places limits on the smallest possible increment of time
Stories by Adam Mann
The Strange Hearts of Neutron Stars
Space observations are poised to reveal more about the centre of one of the Universe’s most enigmatic objects
Fast Radio Bursts from a Spiral Galaxy Challenge Theorists
Astronomers are struggling to explain the repeated, milliseconds-long chirps from a mysterious source
Gravitational-Wave Discovery Hints at Another Spectacular Neutron-Star Crash
This new detection—the second of its kind—raises new questions about the nature of these mysterious objects
Scientists Mull the Astrobiological Implications of an Airless Alien Planet
A rocky world devoid of atmosphere arouses debate over the habitability of the Milky Way’s most common star systems
Astronomers Don't Know What to Make of This Incredibly Bizarre Star
Unusual dips of light observed by the Kepler space telescope have so far confounded attempts at an explanation
The New Scramble for the Moon
A new race could be heating up to claim valuable moon terrain amid uncertain laws
How Wild Should We Let the Solar System Be?
Experts argue that more than 85 percent of the solar system should be left untouched so that we can sustainably move off-world
Search for Alien Life Should Be a Fundamental Part of NASA, New Report Urges
A blue-ribbon committee finds the science of astrobiology is worthy of deep integration into the space agency’s exploration efforts
What Linguistics Can Tell Us about Talking to Aliens
Linguist Sheri Wells-Jensen explains the pitfalls in our assumptions about extraterrestrials
The Closest Exoplanet to Earth Could Be “Highly Habitable”
A new study suggests Proxima Centauri could sustain liquid water on its surface
Curiosity Rover Uncovers Long-Sought Organic Materials on Martian Surface
After decades of searching, scientists are at last closing in on the sources of carbon-rich material in the Red Planet’s air and soil
Hidden History of the Milky Way Revealed by Extensive Star Maps
Data from the Gaia spacecraft are radically transforming how we see the evolution of our galaxy
