(1) A good case has already been made for bacteria microfossils in a Martian meteorite .

(2) The Martian meteorite crashes through the Earth's atmosphere - a blazing fireball.

(3) About 1.8 billion years ago, a meteorite or comet the size of Mount Everest slammed into what is now Canada.

(4) As the newly launched Sputnik satellite orbits earth, a strange meteorite approaches the planet.

(5) The most recent major extinction occurred 65 million years ago when a meteorite crashed into Earth, leading to the demise of the dinosaurs.

(6) It is possible that something may have been at the end of this, a piece of rock, a meteorite .

(7) The age of the carbonates can be clearly determined, and some very old ones had been found on certain asteroids and meteorites .

(8) A monster meteorite that strikes the Earth can shoot fragments of itself, along with terrestrial matter loosened by the impact, far out into space, adding to the swarm of meteoritic grit that already orbits the Sun.

(9) When meteorites hit nearby worlds, they kick up bits of rock, some of which might have enough speed to escape from their planet entirely.

(10) They are very similar in composition to the carbonaceous chondrite meteorites that sometimes fall on Earth.

(11) It is brought to us by such solar system visitors as meteorites , which burn up or fragment and drift as fine particles through the atmosphere.

(12) Other sources of high iridium concentrations are extraterrestrial objects, such as meteorites or comets.

(13) It has been identified in carbonaceous achondrite and iron meteorites .

(14) That is how fragments of the asteroid belt can end up crashing into Earth as meteorites .

(15) Grouped with iron meteorites , these are pieces from the cores of fledgling planets destroyed by collisions when the Solar System formed.

(16) Small impactors deliver meteorites , while large ones infrequently wreak global devastation.

(17) One possible source of such untainted data are Earth's lunar meteorites .

(18) Other Moon rocks brought back by the Apollo astronauts have helped in understanding the lunar meteorites found on Earth.

(19) By examining the volatile content of meteoritic contaminants in the lunar regolith and of volatiles cold-trapped at the lunar poles, we can determine their chemical and isotopic composition and possible source regions.

(20) On display are minerals, fossils, meteorites , and some rocks, most of which are of reference quality.