Astronomers have long speculated about the existence of a mysterious planet lurking far beyond Neptune, a world several times ...

News: NISAR, the joint Indo-US radar satellite, will scan Earth's surface every 12 days to monitor climate shifts, disasters, ...

It’s always fun to test our knowledge with questions from our school days. Sure, we’ve grown up and learned a lot since then, ...

NISAR, built jointly by NASA and India’s space agency and launched on Wednesday, will use radar to monitor tiny changes ...