Aerospace

China, Russia and the U.S. are developing and testing controversial new capabilities to wage war in space despite their denial of such work

New commercial satellites that promise constant close-ups of Earth are a boon to emergency responders and police but also raise privacy concerns

Terrafugia’s latest car–plane mashup concept would cut the flying car learning curve

Early images from New Horizons' encounter with Pluto reveal an extraordinary surface of strange mountains and varying deposits of light and dark material

Stephen Hawking and entrepreneur and former physicist Yuri Milner announce a $100-million, 10-year initiative to look for signs of intelligent life in the cosmos

Stephen Hawking and entrepreneur and former physicist Yuri Milner announce a $100-million, 10-year initiative to look for signs of intelligent life in the cosmos

Entrepreneur and former physicist Yuri Milner talks about the just-announced $100-million Breakthrough Listen Project to search for extraterrestrial technological civilizations

NASA chooses astronauts to fly on commercial missions

Iran’s attempt to develop nuclear weapons will not be the last challenge faced in a journey that began with the world’s first fission bomb test during World War II

At 8:52 P.M. Eastern time, July 14, 2015, an all's-well signal from the New Horizons spacecraft finished its 4.5-hour, three-billion-mile trip from near Pluto through the solar system to alert mission control on Earth that it was in working order and had succeeded in gathering data

At just before 7:50 A.M. today, July 14, 2015, the New Horizons spacecraft made its closest approach to Pluto. After a 9.5-year, three-billion-mile voyage, the ship got within about 7,750 miles from the surface

The destruction of an unmanned rocket Sunday comes at a tricky time for NASA and the International Space Station