"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

Old satellites and other space junk fall toward Earth every day, and the shock waves they create could be used to track their ...

NASA’s Mars Sample Return program faces opposition from planetary scientists following proposed cancellation, with concerns raised over Perseverance samples, future Mars missions, and international ...

ESA exercise machine called European Enhanced Exploration Exercise Device (E4D) helps astronauts stay healthy during space ...

Two Americans and astronauts from Japan and Russia landed in a SpaceX capsule in the Pacific Ocean after a medical issue ...

Anyone who steps onto Mars will be crossing a one-way threshold in more ways than one. The physics of getting there and back, the biology of living in low gravity, and the psychology of leaving Earth ...

Several other threatened programs may now have a better chance of staying funded, but the move indefinitely postpones our ...

Evidence is mounting that the same basic chemistry that made Earth habitable is unfolding, or once unfolded, on Mars. From complex organics to minerals linked with microbial activity, the Red Planet ...

Artemis isn’t just about returning to the Moon. It’s about building the systems needed to operate beyond Earth orbit.

This past week, nonagenarian Don Kelsey — a retired educator and handyman — visited Lowell Observatory with family and friends to introduce them to an old friend whose story threads through some of ...

How Donald Trump tried to ground NASA’s science missions ...