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Asteroid, climate change not responsible for mass extinction 215 million years...

A team of University of Rhode Island scientists and statisticians conducted a sophisticated quantitative analysis of a mass extinction that occurred 215 million years...

Asteroid impact enriches certain elements in seawater

Asteroid strikes upset the environment and provide clues via the elements they leave behind. Now, University of Tsukuba researchers have linked elements that are...

Earth’s oldest asteroid strike linked to ‘big thaw’

Curtin University scientists have discovered Earth's oldest asteroid strike occurred at Yarrabubba, in outback Western Australia, and coincided with the end of a global...

New research supports hypothesis that asteroid contributed to mass extinction

A team of scientists from South Africa has discovered evidence partially supporting a hypothesis that Earth was struck by a meteorite or asteroid 12...

Dust from a giant asteroid crash caused an ancient ice age

About 466 million years ago, long before the age of the dinosaurs, the Earth froze. The seas began to ice over at the Earth's...

Rocks at asteroid impact site record first day of dinosaur extinction

When the asteroid that wiped out the dinosaurs slammed into the planet, the impact set wildfires, triggered tsunamis and blasted so much sulfur into...

Ancient asteroid impacts played a role in creation of Earth’s future...

The heavy bombardment of terrestrial planets by asteroids from space has contributed to the formation of the early evolved crust on Earth that later...

Scientists find increase in asteroid impacts on ancient Earth by studying...

An international team of scientists is challenging our understanding of a part of Earth's history by looking at the Moon, the most complete and...

Crater from asteroid that killed the dinosaurs reveals how broken rocks...

Sixty-six million years ago, an asteroid the size of a small city smashed into Earth. This impact, the one that would lead to the...

Site of asteroid impact changed the history of life

An asteroid, also known as the Chicxulub Impactor, hit Earth some 66 million years ago, causing a crater 180 km wide. The impact of...

Dinosaur-killing asteroid impact cooled Earth’s climate more than previously thought

The Chicxulub asteroid impact that wiped out the dinosaurs likely released far more climate-altering sulfur gas into the atmosphere than originally thought, according to...

Dino-killing asteroid’s impact on bird evolution

Human activities could change the pace of evolution, similar to what occurred 66 million years ago when a giant asteroid wiped out the dinosaurs,...

Dino-killing asteroid could have thrust Earth into two years of darkness

Tremendous amounts of soot, lofted into the air from global wildfires following a massive asteroid strike 66 million years ago, would have plunged Earth...

10 Biggest Impact Craters on Earth

1. Vredefort Crater Asteroid impact date: Estimated 2 billion years ago Location: Free State, South Africa Specs: Also known as the Vredefort Dome, the Vredefort crater has...

New study ranks hazardous asteroid effects from least to most destructive

If an asteroid struck Earth, which of its effects -- scorching heat, flying debris, towering tsunamis -- would claim the most lives? A new...

Mechanism underlying size-sorting of rubble on asteroid Itokawa revealed

In 2005, the Hayabusa spacecraft developed by the Japan Aerospace Exploration Agency (JAXA) landed on Itokawa, a small near-Earth asteroid named after the famous...

Earth is bombarded at random

Asteroids don't hit our planet at regular intervals, as was previously thought. Earth scientists have reached this conclusion after analyzing impact craters formed in...

Myth busted: No link between gigantic asteroid break-up, rise in biodiversity

Some 470 million years ago, during the middle part of the geological period known as the Ordovician, an asteroid collision took place somewhere between...

Asteroid impacts could create niches for early life, suggests Chicxulub crater...

Scientists studying the Chicxulub crater have shown how large asteroid impacts deform rocks in a way that may produce habitats for early life. Around 65...

Soot may have killed off the dinosaurs and ammonites

A new hypothesis on the extinction of dinosaurs and ammonites at the end of the Cretaceous Period has been proposed by a research team...

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