
Echo II is shown here undergoing a tensile stress test in a dirigible hanger at Weekesville, North Carolina. A dirigible…

This artist's conception illustrates Kepler-22b, a planet known to comfortably circle in the habitable zone of a sun-like star. It…

In 2004, an international team of astronomers had, for the first time, observed a stellar "survivor" emerge from a double…

So much of our modern technology is at risk from space weather, including satellites, communications and power grids.

Schematic illustration of the invisible magnetic field lines generated by the Earth, represented as a dipole magnet field.

This diagram compares our own solar system to Kepler-22, a star system containing the first "habitable zone" planet discovered by…

The Apollo 17 spacecraft, containing astronauts Eugene A. Cernan, Ronald E. Evans, and Harrison H. Schmitt, glided to a safe…

Originally taken in July 2010, this photo shows NASA engineers installing six wheels on the Curiosity rover. NASA's Mars Science…

Astronaut Mark Lee tests the new backpack called Simplified Aid for EVA Rescue (SAFER), a system designed for use in…

Cygnus X hosts many young stellar groupings. The combined outflows and ultraviolet radiation from the region's numerous massive stars have…