Spacecraft

No other agency or company had previously successfully landed a reusable rocket

Findings from NASA’s Cassini spacecraft suggests winter in Titan's southern hemisphere will be even colder than predicted

New Horizons reveals the orbits of Pluto's four smallest moons to be even more chaotic than expected

There were other options, but super close-up shots on descent will provide science bonanza

NASA astronaut Bill Shepherd recalls leading the first mission to the space station on November 2, 2000

The U.S.’s measly stockpile of plutonium is barely adequate for missions planned for the next decade

Superpowers are flexing military muscles in orbit, but the U.S. can lead the world away from a planetary disaster

The presence of the gas could have implications for theories of the early solar system

The Cassini spacecraft will zoom just 50 kilometers above Enceladus at about 1 P.M. EDT on October 28

The sun and moon's disruptive presence appears to have kicked WT1190F onto a path that will lead the piece of space debris to self-destruct in Earth's atmosphere

First published findings from NASA’s New Horizons mission lay out the dwarf planet’s wildly varying terrain

The blockbuster film’s futuristic vision of interplanetary exploration could soon be out of date