Video released by the National Science Foundation shows the exact moment the cables on the second-largest radio telescope in the world snapped, causing the subsequent collapse of the Arecibo Observatory in Puerto Rico.
Scientists discovered a planet with oceans of lava and raining rocks.
A trio of space travelers has launched successfully to the International Space Station, for the first time using a fast-track maneuver to reach the orbiting outpost in just three hours.
The biggest, most sophisticated Mars rover ever built is on its way to the red planet.
China has launched its most ambitious Mars mission yet in an attempt to join the United States in successfully landing a spacecraft on the red planet.