Breakthrough Propulsion Physics Program
Musk founded Space Exploration Technologies, or SpaceX, in May 2002. Musk is chief executive officer and chief technology officer of the Hawthorne, California-based company. SpaceX…
Musk founded Space Exploration Technologies, or SpaceX, in May 2002. Musk is chief executive officer and chief technology officer of the Hawthorne, California-based company. SpaceX…
Rocks are named after the children or family members of astronauts or NASA employees. The name “Jazzy”, for example, was taken from a girl named…
According to the theory of relativity, time dilation is a difference in the elapsed time measured by two observers, either due to a velocity difference…
The first automatic partially reusable spacecraft was the Buran-class shuttle, launched by the USSR on November 15, 1988, although it made only one flight and…
While the consensus among physicists is that gravity will attract both matter and antimatter at the same rate that matter attracts matter, there is a…
Nearly polar orbit around a planet, in which the satellite passes over any given point of the planet’s surface at the same local mean solar…
In the context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit. Such objects are sometimes called artificial satellites…
The Moon orbits Earth in the prograde direction and completes one revolution relative to the stars in about 27.32 days (a sidereal month) and one…
There are a variety of formation mechanisms for the different types of nebulae. Some nebulae form from gas that is already in the interstellar medium…
The Falcon 1 was an expendable launch system privately developed and manufactured by SpaceX during 2006–2009. On 28 September 2008, Falcon 1 became the first…