NASA is tracking a piece of Chinese space junk that is headed uncomfortably close to the International Space Station and may force the outpost's crew to take shelter in their Russian lifeboats as a precaution.

Future missions to the Moon or Mars could use plants as bio-harvesters to extract valuable elements from the alien soils

A very young failed star, known as a brown dwarf, was discovered in a close orbit around a nearby, young sun-like star - in closer proximity to each other than most young brown dwarf and planetary companions that have been previously found by direct imaging, according to a new study.

A bright hot star with more than 70 times the mass of our sun will live fast and die young.

After over 20 years of neglect, the planet Venus is once more drawing NASA's eye for ambitious new missions.