(University of the Witwatersrand) Using geometric phase inside lasers for the first time, researchers find a way to change the orbital angular momentum of laser beams.
The mysterious bright spots on the dwarf planet Ceres are better resolved in a new sequence of images taken by NASA's Dawn spacecraft on May 3 and 4, 2015. The images were taken from a distance of 8,400 miles (13,600 kilometers).
Waking up hundreds of miles above the Himalayas, astronaut Scott Kelly broke the U.S. record Friday for the most time spent in space with 383 days.
The NASA spacecraft that was launched 15 years ago this week carried the name 2001 Mars Odyssey and the hopes for reviving a stymied program of exploring the Red Planet.
Mars has distinct polar ice caps, but Mars also has belts of glaciers at its central latitudes in both the southern and northern hemispheres. A thick layer of dust covers the glaciers, so they appear as surface of the ground, ...
Coming soon for the first time in more than 30 years: you'll be able to witness a supermoon in combination with a lunar eclipse.
Mars is a different place than Earth. There is water on Mars, more than the Moon, but lots less than on our own world. But the water on Mars is the same H2O we have here, and we should use it when we travel to Mars and set ...
The red planet made a splash in the media this past week, due to the combined efforts of Ridley Scott's film The Martian and NASA's announcement of new evidence for the existence of water flowing on the surface of Mars.