A supernova is the explosion of a star at the end of its life. When this happens, huge amounts of matter and energy are released in the explosion, giving rise to a bright new object in the sky. This start remnant remains visible for a few weeks and then dies away.
Supernova 2005ap shown with four [...]
Biggest Space Explosion Creates Giant Bubbles
The largest explosion ever seen in space reveals black holes to be more influential than expected, perhaps sometimes stifling star formation in a galaxy while gobbling up trillions upon trillions of tons of gas.
The eruption has been ongoing for some 100 million years, [...]
Rock and ice are the main ingredients of asteroids, comets and meteors. These flying rocks orbit the sun and sometimes come close enough to Earth to see. The Asteroid Gaspra.
Asteroids are made of rocky and/or iron-nickel material and most are found in an orbit between Mars and Jupiter. Most are pitted with impact craters and [...]
All satellites today get into orbit by riding on a rocket or by riding in the cargo bay of the Space Shuttle. Several countries and businesses have rocket launch capabilities, and satellites as large as several tons make it safely into orbit on a regular basis. For most satellite launches, the scheduled launch rocket is [...]
Asteroids are small, rocky bodies that orbit the sun in between the orbits of Mars and Jupiter, which is anywhere from 2.1 AU (1.95×108 mi / 3.15×108 km) to 3.2 AU (3.0×108 mi / 4.8×108 km) from the sun. There are more than 20,000 known asteroids. They are irregularly shaped and vary in size [...]
