Is ALH 84001 a meteorite?
Is ALH 84001 a meteorite?
ALH 84001 is also similar to an important group of igneous meteorites (the diogenites), and was classified as one of them until 1994 when its martian origin recognized by Mittlefehldt (1994). Long after ALH 84001 crystallized from molten lava and cooled, about 4.0 billion years ago, it was heated again and deformed by a strong shock.
Why is the Benld meteorite so famous?
The Benld meteorite, now displayed at the Field Museum of Natural History in Chicago, has been a favorite with visitors there for decades. It’s a tangible connection between the cosmos and human society, a reminder that we are part of a much larger universe, which, at any time, may tap us on the shoulder (or car) to remind us that it’s there.
How long does it take for a meteor to fall?
Meteorite falls appear in radar imagery after the fireball has gone out, and after meteorites have sufficient time to fall from the fireball terminus (roughly 20 km high) down to where the radar can detect them (approximately 10 km and lower altitudes). This normally takes about 2 minutes to occur.
How can I find out if a meteorite has fallen?
Keep an eye out for reports of large, bright events that may indicate a meteorite fall through these resources: The American Meteor Society https://www.amsmeteors.com The American Meteor Society web page has a public meteor reporting page that allows the general public to report large fireballs.
