Space ExplorationJanuary 26, 2023
What Time Is It on the Moon?
Satellite navigation systems for lunar settlements will require local atomic clocks. Scientists are working out what time they will keep
Space Exploration
Space ExplorationDecember 21, 2022
NASA’s Pluto Spacecraft Begins New Mission at the Solar System’s Edge
New Horizons is about to wake up and study the Kuiper Belt, the universe, and even Uranus and Neptune. But a new target to visit could trump them all
New Issue: Science’s Impossible Questions. Read Now
Space ExplorationDecember 11, 2022
NASA’s Artemis I Mission Successfully Returns from the Moon
After a 26-day journey that took it to lunar orbit and back, the uncrewed Orion spacecraft splashed down in the Pacific Ocean on Sunday afternoon, paving the way for future astronaut voyages to Earth’s satellite
Space ExplorationDecember 1, 2022
Are the James Webb Space Telescope’s Pictures ‘Real’?
How the JWST’s cosmic images are made
Space ExplorationDecember 1, 2022
Keep Looking Up
As a dismal year on Earth draws to a close, milestones in space exploration offer much for the whole world to celebrate
OpinionNovember 25, 2022
Space Elevators Are Less Sci-Fi Than You Think
I’ve been working on space elevators for almost 20 years, and though we still have issues to solve, we are getting closer to making them reality
Space ExplorationNovember 21, 2022
NASA’s Artemis I Mission Aces Lunar Flyby
The Orion spacecraft passed just 130 kilometers above the lunar surface during a mission-critical engine burn
OpinionNovember 21, 2022
Twitter Is Not Rocket Science—It’s Harder
Elon Musk wants to run Twitter like SpaceX. But human behavior will make it much more difficult
Space ExplorationNovember 16, 2022
Artemis I Launches U.S.’s Long-Awaited Return to the Moon
The first flight test of the world’s most powerful rocket will send an uncrewed spacecraft to lunar orbit and back
Space ExplorationNovember 14, 2022
Is Space-Based Solar Power Ready for Its Moment in the Sun?
Around the world, researchers are betting that beamed power from space could be the next big thing for clean energy on Earth
Space ExplorationNovember 11, 2022
Filmmakers Find Section of Destroyed Space Shuttle Challenger on Ocean Floor
Divers working on a television documentary were searching for a downed World War II aircraft when they instead discovered the NASA artifact
Space ExplorationNovember 3, 2022
Chinese Rocket Will Crash to Earth on November 5: Here’s What We Know
Yet another Chinese rocket is set to tumble uncontrollably back to Earth this week