The XCOR Aerospace Lynx was a space plane developed by XCOR beginning in 2003 under the original project name “Xerus.”
When does an aircraft become a spacecraft? This was once a subject of significant debate until a clear line of demarcation was established at an altitude of approximately 100 km (60 mi) above sea level.
On June 30, 1971, three Soviet cosmonauts died while reentering the Earth’s atmosphere after a successful docking and prolonged stay onboard the world’s first space station, Salyut 1.
The farthest planets from the Sun in our solar system also happen to be some of the most interesting.
Aside from being the second-largest planet after Jupiter, Saturn is also the least dense. In fact, the planet’s density is so low that, if one could find a pool of water large enough, Saturn would actually float in it.
Jupiter plays an extremely important role in our solar system. The giant planet is approximately 2.5 times more massive than all of the other planets in the solar system combined.