Where did the Moon come from? - NASA
The Condensation Theory: This theory proposes that the Moon and the Earth condensed individually from the nebula that formed the solar system, with the Moon formed in orbit around …
Why are they crashing the Galileo satellite? - NASA
In addition to the information collected about the atmosphere of Jupiter, it detected evidence of underground salt water oceans on Jupiter's moons Europa, Ganymede and Callisto, and …
StarChild: Did you know... (Eris)
Eris was named after the goddess of strife. Its moon, Dysnomia, was named after the daughter of Eris.
Why is the crescent moon sometimes lit on the bottom? - NASA
StarChild Question of the Month for March 2002 Question: Why is the crescent Moon sometimes lit on the bottom? Answer: A careful observer will certainly notice that over the period of …
How do planets and their moons get their names? - NASA
The official names of planets and their moons are governed by an organization called the International Astronomical Union (IAU). The IAU was established in 1919. Its mission is "to …
Alan Shepard - starchild.gsfc.nasa.gov
He spent only 5 minutes in space that day. He was called a hero when he returned to Earth. Shepard did not go into space again until 1971. That year, he flew aboard Apollo 14 and …
The Apollo 15 Lunar Rover on the Moon - NASA
The Apollo 15 mission was the first to carry a lunar rover, which allowed the astronauts to travel much further from their landing site and sample a much wider variety of lunar materials. Here, …
StarChild: Saturn's Natural Satellites - NASA
Saturn's Natural Satellites For many years, Saturn was believed to have 18 natural satellites. Since the year 2000, however, many more satellites have been observed and confirmed. As of …
StarChild: Did you know... (Alan Shepard)< - NASA
Did you know...? Alan Shepard carried a golf club on board Apollo 14. While on the Moon's surface, he played golf.
What makes stars shine - NASA
Where did this mass deficit of 4.7227 x 10 -29 kg go? The most famous equation in the world (E=mc 2) supplies the answer! How much energy will 4.7227 x 10 -29 kg be converted into? (If …