A pellet of plutonium 238, illuminated by the glow of its own radioactivity. NASA and other space agencies use this material in radioisotope power sources for interplanetary missions to the solar ...

Pt. 1. The golden age, 1957-1982. The beginning -- Of landers and orbiters -- The grandest tour -- Pt. 2. Hiatus and renewal, 1983-1996. The decade of Halley -- The era of flagships -- Faster, cheaper ...

"Trip to the Planets, A" is a black-and-white science film featuring imaginative depictions of space travel in a giant airship. Heavy on intertitles, the film employs animation and detailed models to ...

Federal funding is about to run out for 19 active space missions studying Earth's climate, exploring the Solar System, and probing mysteries of the Universe.

HOUSTON—The Japan Aerospace Exploration Agency’s (JAXA) Hayabusa 2 and NASA’s Osiris-Rex missions are writing a new chapter in the exploration of Solar System bodies as they explore the rugged ...

Earth has always wondered—is there life beyond our solar system? Dive into the mysteries of UFOs, extraterrestrial theories, ...

Homer Newell and the Origins of Planetary Science in the United States -- The Survival Crisis of the US Solar System Exploration Program in the 1980s -- Faster, Better, Cheaper: A Sociotechnical ...

The U.S. planetary science community is sounding the alarm about plans to discard a nuclear technology that has powered dozens of NASA missions over the past 50 years But RPS is expensive, costing ...