James Webb is now slated for a 2021 launch—only a bajillion years late.
Confirming hints picked up by the Hubble just a few years ago.
The James Webb Space Telescope has an ever-expanding timeline—and projected cost.
I is for interstellar.
This summer, the mission may get funding to travel to a mysterious rock at the edge of the solar system
There's still more to explore after Pluto.
Introducing the High-Definition Space Telescope
Mirror, mirror, in the clean room
You can't see it—but Hubble can.
Yesterday's Antares failure was not exactly unprecedented.
The telescope began work 26 years ago today, but getting there wasn't so easy
Spaceman documents Mike Massimino's unlikely journey from fire inspector's son to elite astronaut
A lack of personnel makes the problem more precarious.
A Gallery Of Photos Curated By The Person Who Made Most Of Them
An excerpt from Spaceman, a memoir by astronaut Mike Massimino
Now it's ready for the final tests before launch in 2018
The ability to gather more information means we'll spend more time sifting through it.
Megapixels: Binary stars are at the heart of this celestial crustacean.
With no plans for future upgrades, the telescope faces a fiery end
But more importantly, we know a bit more about why the galaxy is the way it is.
Andromeda in high-def
Stranger worlds to come
A gallery of photos, visualizations, and other pictures of outer space.
300 times the coverage!