Stones from the Sky
Above, a meteor outburst during the Perseid meteor showers of 1995. Friction in the atmosphere turns rocks into fireballs.
The Allende meteorite is a carbonaceous chondrite, a rare type of meteorite that makes up only about 4 percent of known meteorites. The Allende meteorite contains components that are more than 4.5 billion years old, making the rock a snapshot of the conditions present in the earliest days of the solar system.
The car has found fame, too. It's now owned by R.A. Langheinrich Meteorites, and has been put on display around the world.
Life in a Meteorite?
Other scientists, however, called foul, pointing out that the structures could be created by non-organic processes.
Old Rock, New Mineral
The basketball-sized rock, dubbed "heat shield rock" because it sits near the debris of Opportunity's heat shield, is mostly nickel and iron.