How do we know the last meteor hit the earth 65 million years ago and not 1 million years ago?
- gregory_dittmanLv 71 year ago
The Earth has soil layers as dust covers things up. The asteroid fragments show up in the layers that contain the dinosaurs. Scientists date (radioactive dating) certain rocks in these particular layers.
- 1 year ago
propably figured it out with carbon dating
- Ronald 7Lv 71 year ago
Meteors fall to Earth all the time
They are Space Debris left over from the formation of the Solar System's formation
They could tell us a lot and do
The Big ones really do make an Impact !!
The Barringer Crater 37 miles East of Flagstaff and 18 miles of Winslow
50, 000 years ago is clearly visible and 0.737 miles wide in Airizona
Impactor was reckoned to be at least 160 feet across
In 2012 one exploded over Chebalinsk in Russia blowing in doors and breaking windows
Don't forget the one in Siberia 1908 that flattened Square miles of forest
A recently as last Saturday the was a major explosion from one at 32, 000 feet over the Bering Straight
It was only recorded by the Military and took a while for the news to get through
We see Shooting Stars all the time as tons of the stuff falls to Earth each year
The Most Famous one of the lot was the Chixulub Impact 65 Million years ago
It was 7 miles across, ( The Size of Los Angeles ) and left a fossilised crater 250 miles across on the Yucatan Peninsula
It created a mass Extinction EventSource(s): The Smoking Gun
- nineteenthlyLv 71 year ago
The Chicxulub Impactor, which may not have been an asteroid but a cometary nucleus, was by no means the last massive object to hit this planet. It was just the most significant one. There was a large one as recently as 1908, which hit Siberia.
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- EricLv 41 year ago
These ridiculous dates and theories change every so often. Dinosaurs never existed.
- AthenaLv 71 year ago
The meteor that killed the dinosaurs was 65 million years ago.
There have been a low of collisions sense.
- Jeffrey KLv 61 year ago
Lots of meteors hit earth during the last million years. The one that killed the dinosaurs certainly wasn't the most recent one.
- 1 year ago
We get hit every day. In 2013, one exploded over Chelyabinsk, Russia, that broke windows, knocked doors off hinges, and injured a few thousand people. 50-60,000 years ago, one punched a hole in the desert of Arizona:
There are about 80 to 85 large circular features on Earth that are thought to be past meteor strikes, their ages ranging from a few hundred years ago to several million.
- billrussell42Lv 71 year ago
meteors hit earth 5-10 every year. There was a major hit in July of 2018.
- Anonymous1 year ago
Intelligence software can usually tell when.