With a new encyclopedia, seekers for intelligent life ask astronomers to reexamine the sky.
The Universe in time-lapse.
Early results from the world’s leading exoplanet survey.
To fly through the apex of a storm, NASA needed to raid the boneyard.
A science balloon floats closer to the stars.
The supernova that came back from the dead.
Observations of early-forming galaxies shows they're pretty...normal. And that's unexpected.
Scientists have to re-think the particles believed to make up most of the universe when another experiment comes up empty.
If we broaden our search, will we hear aliens? $100 million says yes.
The worst thing about Harqua Hala was the isolation.
When sending spacecraft, it's customary to include a note.
The hunt for the most elusive particles in the universe is half a mile underground.
When it comes to star travel, some people won’t take no for an answer
DE-STAR would tackle two of humanity’s biggest challenges.
While monster telescopes get the attention, the little guys quietly — and cheaply — rack up cosmic finds.
The second-moon theory.
In this tables-turned scenario, the airplane shoots down the missile.
Blinding us with science: the next generation of stealth.
The Chandra X-Ray Telescope, explained.
Jets get no kick from champagne, but a little fuel in the tailpipe...