A Spacesuit Ballet
This video features archival NASA footage of mobility tests for several spacesuit prototypes.
Manhattanhenge: Watch a Star Align
Twice a year, the sunset lines up with New York City’s street grid—making for spectacular views.
Astronauts Prepare for Departure
We’ll check in with crewmembers on board the International Space Station, just days before several are scheduled to return to Earth after months in orbit.
Will China Blast Past America in Space?
China just ticked off another accomplishment in space: its first manned docking in orbit. Next stop…the Moon?
Voyager 1 Bids Farewell To The Solar System
Voyager 1 is leaving the solar system, making it the first spacecraft to enter interstellar space.
More to the Universe Than Meets the Eye
The universe is full of invisible stuff. Take dark matter–you can’t spot it with your eyes, but it outnumbers visible matter five to one!
What Happens When Two Galaxies Collide?
Astronomers say the Andromeda and Milky Way galaxies will collide in four billion years.
Ex-Spy Telescopes May Aid Hunt for Dark Energy
The spy telescopes are wide-angle and short in length–earning them the nickname “stubby Hubbles.”
SpaceX Dragon May Ferry Astronauts by 2015
After a successful cargo run to the space station, SpaceX is preparing the Dragon capsule for crew.
Planning for a Solar Sky Show
Want to see a ring of fire? We’ll tell you how to see Sunday’s solar eclipse.