Astronomers Glimpse Signposts of Universe's First Stars
A simple signal confirms the existence of stars just 180 million years after the big bang, and reveals new hints about the nature of dark matter
Stories by SPACE.com
Superflare Wallops Nearest Exoplanet, Proxima b
Such flares dim hopes for life on the Earth-mass world
Astronomers Spot Most Distant Supernova Ever Seen
Light from the powerful cosmic explosion took 10.5 billion years to reach Earth
SpaceX Launches Test Satellites for Internet Constellation
The launch also marked the company’s first attempt to recover and reuse the fairing of its Falcon 9 rocket
Proposed Exomoon Defies Formation Theories
The mysterious object could be the first moon found beyond our solar system—or something else entirely
Astronomers Haul in Another Horde of Kepler Planets
Nearly 100 worlds are the latest catch from the hardy space telescope
If We Found Life on Mars, How Would We Know?
Despite decades of Red Planet exploration, the protocols for confirming evidence of life there are still quite hazy
Did We Just Find Exoplanets in Another Galaxy?
New observations of a supermassive black hole in a faraway galaxy hint that planets are plentiful throughout the universe
After Launching the World's Most Powerful Rocket, What's Next for SpaceX?
Crewed flights of the Dragon spacecraft and preparations for the Big Falcon Rocket are on the agenda
Watch Live as SpaceX's Falcon Heavy Rocket Launches Today
Whether a success or a failure, the first test flight of the world's current most powerful rocket guarantees fireworks
SpaceX Falcon Heavy Rocket Will Attempt a Triple Landing
If successful, the rocket’s first test flight will include three boosters flying back to Earth
EX-PRIZE: Google's $30-Million Moon Race Ends with No Winner
After more than a decade of activity, the Google Lunar XPRIZE is concluding—but the race to the moon continues
NASA Pushes for Nuclear-Powered Space Missions
The space agency’s Kilopower project could end a half-century hiatus for U.S. reactors in space
In the Search for Alien Life, "Everyone Is an Astrobiologist"
Scientists are plotting new directions in the quest for cosmic company
Fate of Secret "Zuma" Satellite Unknown after SpaceX Launch
Rumors swirl around whether or not a mysterious spacecraft successfully entered and began operations in low Earth orbit
Weird "Tubes" on Mars Are Probably Not Signs of Life
Crystalline growth, rather than biotic processes, are the likely explanation for strange Martian minerals glimpsed by NASA’s Curiosity rover
Dust, Not Aliens, Is Likely Cause of Star's Weird Dimming
Even so, the strange saga of Tabby’s Star is far from over
Beyond Pluto, New Horizons' Next Target May Have a Moon
The probe’s 2019 encounter with the icy object 2014 MU69 could reveal multiple lunar companions
King Tut's Dagger Is Out of This World
New study shows that meteorites rather than terrestrial ore were the sources of Bronze-Age iron
To Find Life on Mars, Look Underground
Ancient, buried hydrothermal systems are ideal sites to search for Martian fossils
