Browse Reference Articles
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Spacecraft propulsion
Spacecraft propulsion is used to change the velocity of spacecraft and artificial satellites, or in short, to provide delta-v. There are many different methods. Each method has drawbacks and ... > more -
Buzz Aldrin
Colonel Buzz Aldrin, Sc.D (born January 20, 1930 as Edwin Eugene Aldrin, Jr.) is an American pilot and astronaut who became the second human to set foot on the Moon (after Neil Armstrong) during the ... > more -
Neil Armstrong
Neil Alden Armstrong (born August 5, 1930) is a former American astronaut, test pilot, naval aviator. He is famous as the first human ever to step foot on the ... > more -
Solar flare
A solar flare is a violent explosion in the Sun's atmosphere with an energy equivalent to tens of millions of hydrogen bombs. Solar flares take place in the solar corona and chromosphere, heating ... > more -
Phoenix (spacecraft)
The Phoenix is a planned multi-agency Mars lander, headed by the University of Arizona's Lunar and Planetary Laboratory, under the direction of NASA, scheduled to launch on August 3, 2007. It is a ... > more -
Lunar space elevator
A lunar space elevator (also called a moonstalk) is a proposed cable running from the surface of the Moon into space. It is similar in concept to the better known Earth space elevator idea (a cable ... > more -
Van Allen radiation belt
The Van Allen radiation belt is a torus of energetic charged particles (i.e. a plasma) around Earth, trapped by Earth's magnetic field. When the belts "overload", particles strike the upper ... > more
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