Massive Meteor Shower «Hit Earth And Moon» 800 Million Years Ago.

Massive Meteor Shower 'Hit Earth And Moon' 800 Million Years Ago

The knock-on effect to life on Earth must have been profound, the researchers said (Representational)

Paris:

A giant meteor shower bombarded Earth and the Moon 800 million years ago with more than 30 times the force of the asteroid strike that killed the dinosaurs, new research showed Tuesday.

Japanese scientists examined images taken by the Kaguya lunar orbiter and found that an enormous asteroid -- at least 100 kilometres (60 miles) in diameter -- broke up and plunged into the Earth-Moon System, having a profound impact on life on our planet.

The probability of an asteroid that size hitting Earth is roughly once in 100 million years, and impact craters of meteor strikes created before 600 million years ago have been erased by aeons of erosion and other geological processes.

But there is virtually no erosion on the Moon, allowing the team to reconstruct the history of nearly 60 large craters.

Researchers from Osaka University looked at the age the large craters were formed by examining the density of smaller craters within their ejecta range -- where chunks of rocks would have landed after the main impact.

They used scaling laws and collision probabilities to calculate that the mass of meteors to strike Earth and the Moon was 40-50 million billion tonnes -- that's 30-60 times greater than the Chicxulub impact event.

This strike, approximately 65 million years ago in what is modern day Mexico, is thought to have led to a mass extinction of more than three quarters of life on Earth, including non-avian dinosaurs.

The team said the shower 800 million years ago struck Earth just before the Cryogenian period, which saw a planet-wide ice age between 720-635 million years ago.

Writing in the journal Nature Communications, they said the knock-on effect to life on Earth must have been profound.

"Our new finding suggests that the flux of extra-terrestrial elements might have influenced marine biogeochemical cycles... severe perturbations to Earth's climate system, and the emergence of animals," they said.

The Kaguya mission was launched in 2007 and studied Earth's satellite in then-unprecedented detail, including the dark side of the Moon and its magnetic field.

(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)

Comments

Related news

Barbara Lagoa, Trump's Potential Pick For US Supreme Court.

Barbara Lagoa, the Cuban-American federal appellate judge under consideration by President Donald Trump for the U.S. Supreme Court, is a conservative jurist whose resume includes a role in a heated...

Russia will block peace talks if resolution on local elections in Donbas not changed - Kravchuk.

If the Verkhovna Rada does not change the resolution on local elections, it will block not only the exchange of prisoners, but also all the work of the Trilateral Contact Group on the Peaceful Settlement of the Situation in Donbas.

Founder Of Truck Maker Nikola Resigns After Fraud Allegations.

The founder and executive chairman of embattled zero-emission truck maker Nikola has resigned, the company announced Sunday, after allegations of fraud which sparked a stock tumble and a regulatory...

China To Lose Access To Australian Space Tracking Station.

China will lose access to a strategic space tracking station in Western Australia when its contract expires, the facility's owners said, a decision that cuts into Beijing's expanding space exploration...

China Air Force Video Seems To Show Simulated Attack On US Air Base.

China's air force has released a video showing nuclear-capable H-6 bombers carrying out a simulated attack on what appears to be Andersen Air Force Base on the U.S. Pacific island of Guam, as regional...

1 366

Number of COVID-19 cases confirmed worldwide exceeds 31 mln.

The overall death toll is 960,698 people, while 21,254,847 coronavirus patients have already recovered.

New Zealand Eases Coronavirus Controls, Eyes Elimination.

Prime Minister Jacinda Ardern moved most of New Zealand to the lowest virus alert setting Monday, saying the country was edging towards eliminating Covid-19.

1 3

Trump's Campaign Manager Didn't Vote For Him In 2016, Public Records Show.

President Donald Trump's campaign manager didn't vote for his boss in the last presidential election. He didn't vote at all.The last time Bill Stepien voted, according to public records, was 2015 when...

Covid Grows Less Deadly In US As Doctors Gain Practice, Drugs Improve.

Covid-19 continues to kill close to 1,000 Americans a day. But for those who develop dangerous cases of the infection, advances in medical care and the growing experience of doctors are improving the...

1 19

25 Whales Feared Dead, Around 270 Stranded Off Australia's Tasmania.

Marine biologists were planning the rescue of around 270 whales stranded on a sandbar off the remote west coast of the Australian island of Tasmania on Monday.

2 27

By continuing to browse World News (UAZMI), you acknowledge that you have read the Terms of Use and agree to the use of cookies