James Webb is now slated for a 2021 launch—only a bajillion years late.
New Horizons scientist Leslie Young discusses what to expect from the flyby on Tuesday, and the 28-year wait leading up to it
In the December 1980 issue of Popular Science, a 38-year-old theoretical physicist answers the ultimate question about the universe.
Introducing the High-Definition Space Telescope
Happy birthday to the best space telescope ever! Love, PopSci.
A gallery of photos, visualizations, and other pictures of outer space.
Confirming hints picked up by the Hubble just a few years ago.
A Gallery Of Photos Curated By The Person Who Made Most Of Them
There's still more to explore after Pluto.
Otherworldly desktop backgrounds.
The James Webb Space Telescope has an ever-expanding timeline—and projected cost.
Seeking a distant pale blue dot
Mars is at its closest and clearest right now. You know you want to look at it.
With a view 100 times larger than Hubble's, the WFIRST scope could discover thousands of exoplanets and millions of galaxies
This summer, the mission may get funding to travel to a mysterious rock at the edge of the solar system
I is for interstellar.
Hubble spots the most distant galaxy yet
Teach a computer to see and it'll work for a lifetime
Short answer: They create a beautiful swirling mess.
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 no plans for future upgrades, the telescope faces a fiery end
Figuring out if conditions are right for life on Jupiter's icy moon