The James Webb Space Telescope has an ever-expanding timeline—and projected cost.
I is for interstellar.
Confirming hints picked up by the Hubble just a few years ago.
James Webb is now slated for a 2021 launch—only a bajillion years late.
There's still more to explore after Pluto.
This summer, the mission may get funding to travel to a mysterious rock at the edge of the solar system
A Gallery Of Photos Curated By The Person Who Made Most Of Them
In the December 1980 issue of Popular Science, a 38-year-old theoretical physicist answers the ultimate question about the universe.
But more importantly, we know a bit more about why the galaxy is the way it is.
Introducing the High-Definition Space Telescope
New Horizons scientist Leslie Young discusses what to expect from the flyby on Tuesday, and the 28-year wait leading up to it
Hubble Telescope will investigate further
Spaceman documents Mike Massimino's unlikely journey from fire inspector's son to elite astronaut
You can't see it—but Hubble can.
The ability to gather more information means we'll spend more time sifting through it.
With scorching temperatures day and night, WASP-43b ain't no place to live.
With no plans for future upgrades, the telescope faces a fiery end
Stranger worlds to come
Mirror, mirror, in the clean room
Yesterday's Antares failure was not exactly unprecedented.
A gallery of photos, visualizations, and other pictures of outer space.
And it's giving Einstein a run for his money
Now it's ready for the final tests before launch in 2018