About 1.8 billion years ago, a meteorite or comet the size of Mount Everest slammed into what is now Canada.
It is possible that something may have been at the end of this, a piece of rock, a meteorite .
The Martian meteorite crashes through the Earth's atmosphere - a blazing fireball.
The most recent major extinction occurred 65 million years ago when a meteorite crashed into Earth, leading to the demise of the dinosaurs.
As the newly launched Sputnik satellite orbits earth, a strange meteorite approaches the planet.
A good case has already been made for bacteria microfossils in a Martian meteorite .
The age of the carbonates can be clearly determined, and some very old ones had been found on certain asteroids and meteorites .
Lunar and meteoritic rocks are older than terrestrial material, but they may have formed very recently indeed during the history of the Universe so are not useful in the cosmological setting
A safe containing moon rocks and meteorites was stolen from the Johnson Space Center in Houston on July 15.
Grouped with iron meteorites , these are pieces from the cores of fledgling planets destroyed by collisions when the Solar System formed.