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The Largest Extinction Event In Earth's History Occurred 250 Million Years Ago
Earth is no stranger to mass extinction events – it’s had five so far, and some scientists have even claimed we’re in the ...
Science Daily20h
Meteorite contains evidence of liquid water on Mars 742 million years ago
An asteroid struck Mars 11 million years ago and sent pieces of the red planet hurtling through space. One of these chunks of Mars eventually crashed into the Earth and is one of the few meteorites ...
Business Today18d
Meteorite 200 times larger than the dinosaur-killing asteroid hit Earth 3.3 billion years ago. But it helped life to flourish
The most striking illustration of the destructive power of space rocks on Earth is the asteroid that wiped ... and animal species around 66 million years ago. However, scientists have recently ...
Phys.org14d
Tiny fragments of a 4-billion-year-old asteroid reveal its history
In June 2018, Japan's Hayabusa 2 mission reached asteroid 162173 Ryugu ... body's interior melted the water ice about three million years ago. Over time, reactions between the water and rock ...
Scientific American24d
An Ancient Asteroid Impact Both Harmed and Helped Life
But what if this much larger asteroid had hit Earth 66 million years ago, after flowers, trees, dinosaurs, mammals, fish and other complex life had evolved? “For this type of event, only simple ...
Labroots29d
When Did Ants Start Farming? 66 Million Years Ago
A new study has suggested that ant agriculture arose about 66 million years ago, when Earth was struck by an asteroid that wiped out the dinosaurs. Ants started to cultivate fungi long ago, and this ...
Mashable19d
A colossal asteroid once boiled the oceans. It also did the unexpected.
The asteroid that hit Earth some 3.26 billion years ago was many times the size of Mount ... a half-mile across or larger happens on 100-million-year timescales. Mark is an award-winning ...
Science News29d
The cataclysmic origins of most of Earth’s meteorites have been found
the team found that many of those asteroids existed unified as a single asteroid 7.6 million years ago. Prior research had already applied the same time-rewinding technique to another asteroid ...
Phys.org29d
Unlocking cosmic origins: Researchers trace 70% of meteorites to 3 asteroid families
These families were produced by three recent collisions that occurred in the main asteroid belt 5.8, 7.5, and about 40 million years ago. The team also revealed the sources of other types of ...
Science Daily29d
The origin of most meteorites finally revealed
These families were produced by three recent collisions that occurred in the main asteroid belt 5.8, 7.5, and about 40 million years ago. The team also revealed the sources of other types of ...
Yahoo28d
Astronomers trace the origin of meteorites that have struck Earth
The Massalia asteroid family, formed about 40 million years ago, accounts for a class of meteorites called L chondrites that represent 37% of known Earth meteorites, the research found.