Space & Physics
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
Stories by SPACE.com
Space & Physics
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
Space & Physics
Dust, Not Aliens, Is Likely Cause of Star’s Weird Dimming
Even so, the strange saga of Tabby’s Star is far from over
Space & Physics
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
Space & Physics
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
Space & Physics
To Find Life on Mars, Look Underground
Ancient, buried hydrothermal systems are ideal sites to search for Martian fossils
Space & Physics
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
Space & Physics
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
Space & Physics
ESPRESSO Gives Planet Hunting a Jolt
New high-performance instrument could reveal hidden habitable worlds around nearby stars
Space & Physics
Oldest Supermassive Black Hole Found from Universe’s Infancy
The object grew to more than 800 million times the mass of the sun when the cosmos was only 5 percent its present age
Space & Physics
“Equator Trap” May Hinder Search for Alien Life
Bizarre atmospheric circulation patterns could obscure signs of life on some nearby exoplanets
Space & Physics
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
Environment
How Much Air Pollution Is Produced by Rockets?
With economic activity poised to surge in space, scientists are reexamining how rockets might harm Earth’s atmosphere
Space & Physics
Interstellar Asteroid Looks Like a Spinning Space Cigar
The bizarre object could be the first of many to be detected by new generations of telescopes
Space & Physics
Interstellar Message Beamed to Nearby Exoplanet
The radio signal directed at a world 12 light-years away included music and math lessons from Earth
Space & Physics
Meet ‘Oumuamua, the First-Ever Asteroid from Another Star
An interstellar space rock seen hurtling through the solar system now has a name
Space & Physics
New Planet on the Block May Be Habitable
The Earth-mass world orbits a dim, quiet star just 11 light-years away
Space & Physics
First Flight of NASA’s Largest Rocket May Be Delayed Until 2020
The agency’s Space Launch System is intended to take astronauts to the Moon and beyond
Space & Physics
How to Watch the Taurid Meteor Shower This Weekend
Sunday night is probably the best time to catch the celestial fireworks
Space & Physics
Bizarre Supernova Defies Understanding
Supernovas are thought to be the explosive deaths of stars. So what happens when one is found repeating?
