James Webb is now slated for a 2021 launch—only a bajillion years late.
With no plans for future upgrades, the telescope faces a fiery end
300 times the coverage!
With scorching temperatures day and night, WASP-43b ain't no place to live.
When the stars align, you can zoom way in.
A lack of personnel makes the problem more precarious.
The telescope began work 26 years ago today, but getting there wasn't so easy
NASA's big announcement next week is going to be definitely not aliens
Happy birthday to the best space telescope ever! Love, PopSci.
Introducing the High-Definition Space Telescope
A Gallery Of Photos Curated By The Person Who Made Most Of Them
Otherworldly desktop backgrounds.
Megapixels: Binary stars are at the heart of this celestial crustacean.
It contains a whopping 665 million pixels.
With a view 100 times larger than Hubble's, the WFIRST scope could discover thousands of exoplanets and millions of galaxies
The James Webb Space Telescope has an ever-expanding timeline—and projected cost.
There's still more to explore after Pluto.
The ancient Lyrid meteors have never failed to amaze us.
Spaceman documents Mike Massimino's unlikely journey from fire inspector's son to elite astronaut
Mirror, mirror, in the clean room
Now it's ready for the final tests before launch in 2018
Andromeda in high-def
A rare galaxy formation gives glimpses into the early universe
A beautiful new image of the aptly named Bubble Nebula