The job posting has elicited headlines about how the space agency is seeking a person to defend Earth from aliens. But it's really more about microorganisms than little green men.
Cold War-era tactical bombers specially equipped with stabilized telescopes will fly over the central United States on Aug. 21, taking detailed observations of the Sun's atmosphere.
NASA plans to send people to the Red Planet in the 2030s. In the meantime, a remote location in southern Utah serves as a non-NASA training ground for the Mars-minded.
In 1969 it was the orbiting home and refuge for the first astronauts who walked on the moon. Today, after decades on display in a Smithsonian museum, the module is being restored for a national tour.
This year was one of the most competitive applicant pools in the agency's history. One of the candidates explains what it takes to earn a coveted spot — and why so many want to be an astronaut today.
The planet called KELT-9b is around three times more massive than Jupiter. It orbits a blue star about 650 light-years away from Earth that's nearly twice as hot as our own sun.
The small spacecraft is set to hurtle toward the sun at about 450,000 miles per hour. Scientists hope it will clear up some big mysteries, such as why the sun's atmosphere is hotter than its surface.
The NASA has spotted enormous cyclones at the gas giant's north and south poles. The probe has also returned other data that have project scientists scratching their heads.
In Part 1 of the series Total Failure, a former NASA official recalls the disastrous mission of the space shuttle Columbia in 2003 and how the accident changed his life forever.