Image of the Day
Two Russian Soyuz spacecraft fly over Earth's city lights with star trails overhead in this long-exposure photo taken from the International Space Station.
Far Side Astronomy: Orbiting Telescope Would Use Moon as Shield
Out of darkness, there came the blazing light of the very first stars and galaxies in the universe — and the best place to look back at them might be the far side of the moon.
Life on Earth is Used to Gravity — So What Happens to Our Cells in Space?
The force of gravity doesn't just keep us anchored to the ground; it influences how our bodies work on the smallest of scales.
US Air Force's Newest Missile-Warning Satellite Operational and Transmitting
The Air Force's newest Space Based Infrared System missile-warning satellite is operational and has transmitted its first images, Lockheed Martin said March 21.
Production of Plutonium Spacecraft Fuel Could Boom in Early 2020s
A public-private partnership led by a company called Technical Solutions Management aims to start generating usable amounts of plutonium-238 — the material that powers deep-space explorers such as NASA's Curiosity Mars rover — by 2022 or so.