What is going on with my moon?
Europa, the outer solar system, and a lot of questions.
New Horizons scientist Leslie Young discusses what to expect from the flyby on Tuesday, and the 28-year wait leading up to it
James Webb is now slated for a 2021 launch—only a bajillion years late.
In the December 1980 issue of Popular Science, a 38-year-old theoretical physicist answers the ultimate question about the universe.
Not quite ready for takeoff
We all like having options.
A look back at the spacecraft's greatest discoveries
Bubble, bubble, toil and trouble
Shooting for the stars.
The ancient Lyrid meteors have never failed to amaze us.
A Gallery Of Photos Curated By The Person Who Made Most Of Them
Not just a pretty planet
Imagine the space-scuba diving potential
The Saturn explorer's death spiral begins on Sunday
Short answer: a time machine
Two private citizens have reportedly paid up for a lunar jaunt
The story of heroic fasteners that will get us to the moon and back.
The next one isn't until 2033, so enjoy the pictures now
Here are eight surprising things NASA has learned so far.
One of our writers went all the way to the remote Faroe Islands to get the best view of the event
Raise the e-sail
Figuring out if conditions are right for life on Jupiter's icy moon