
NASA Announces the Astronaut Crew for Artemis II Lunar Flyby
Four astronauts will fly around the moon in preparation for the first human landings there since 1972

NASA Announces the Astronaut Crew for Artemis II Lunar Flyby
Four astronauts will fly around the moon in preparation for the first human landings there since 1972

Health Research Is Needed Now before Sending Civilians to Space
Now is the time to protect the health and safety of civilians who will be traveling, living and working in the dangerous environment of space


Three Easy Ways to Make AI Chatbots Safer
The tech industry is rushing headlong into the chatbot gold rush. We need prompt, focused regulation that keeps pace

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

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

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

Are the James Webb Space Telescope’s Pictures ‘Real’?
How the JWST’s cosmic images are made

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

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

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

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

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