Two Cape Town high school pupils are over the moon after being selected to attend the United Space School at Nasa.
The first close-up views of Pluto show mountains made of ice and a surprisingly young, crater-free surface.
About 13 hours after its closest approach to Pluto, the last major unexplored body in the solar system, New Horizons phoned home.
Revealed for the first time in all its glory, the icy face of Pluto was photographed close up by New Horizons.
Mysterious Pluto looms large and turns out to be larger than expected as Nasa's New Horizons spacecraft wraps up a nearly decade-long journey.
The New Horizons spacecraft is closing fast on an unexpectedly spotted Pluto, the most distant planet ever explored.
Three men and one woman were named by Nasa as the astronauts who will fly aboard spaceships built by private companies in the coming years.
The Falcon 9 rocket accident should not eliminate SpaceX from the competition to launch a new GPS satellite, says the US Air Force.
SpaceX is still homing in on why its Falcon 9 rocket exploded after liftoff last week.
Nasa expects the New Horizons spacecraft to be back in service after a computer crash threatened its upcoming historic flyby of Pluto.
Leading astronomers who have been studying the findings of the Rosetta spacecraft believe the comet could support micro-organisms.
Nasa is working to revive the New Horizons spacecraft after it suffered a computer malfunction just nine days before it was due to fly past Pluto.
Five previously hidden supermassive black holes have been discovered by British astronomers.
Aliens will not look like little green men with saucer-like eyes, says Professor Simon Conway Morris.
As the world celebrates World UFO Day, a local expert pinpoints the best places for UFO sightings in SA.