The European Space Agency (ESA) is advancing on its ambitions for future space transportation. This week, the agency has ...

NASA’s Prometheus program to employ nuclear reactors in space is a work in progress – viewed as a key building block of the space agency’s vision for space exploration.

Space.com: With their flagship mission deferred, Project Prometheus officials are looking at other targets to showcase a space nuclear power system.

A proposed private spaceship designed to carry astronauts by the commercial space firm in Virginia has a new name steeped in mythology: Prometheus. The company Orbital Sciences unveiled the ...

NASA’s Cassini spacecraft spied details on the pockmarked surface of Saturn’s moon Prometheus (86 kilometers, or 53 miles across) during a moderately close flyby on Dec. 6, 2015.

First discovered when the Voyager spacecraft sailed through Saturn’s rings in 1980, Prometheus is a 53 mile-across imp that sits just inside the narrow F ring (shown at top).

Observations made by other spacecraft— Voyager 2, Galileo, Cassini, New Horizons, and currently, Juno—have revealed that Io is a dynamic hellscape of fire and ice.

A private spaceship being proposed by a commercial space company in Virginia to carry astronauts has been given a name steeped in mythology: Prometheus.