Scientists now know the age of an enormous impact crater hidden under Greenland's ice. The Hiawatha crater, which sits under 0.6 mile (1 kilometer) of ice in northwest Greenland, formed 58 million years ago, according to a study published March 9 in the journal Science Advances.Scientists now know the age of an enormous impact crater hidden under Greenland's ice. The Hiawatha crater, which sits under 0.6 mile (1 kilometer) of ice in northwest Greenland, formed 58 million years ago, according to a study published March 9 in the journal Science Advances.15-Mar-2022
How big was the meteor that hit Greenland?
Massive 19-mile-wide crater in Greenland actually much older than we thought, study says.
Where is the crater in Greenland?
Hiawatha Glacier Enormous Asteroid Crater in Greenland is 58 Million Years Old, Scientists Say. The 31-km- (19.2-mile) wide Hiawatha impact structure is located beneath Hiawatha Glacier in northwestern Greenland. Photo from fieldwork at the edge of the Greenland Ice Sheet in 2019.
How did they find the impact crater in Greenland?
Kjær, a geologist at the Natural History Museum of Denmark in Copenhagen, suspected the glacier was hiding an explosive secret. The helicopter landed near the surging river that drains the glacier, sweeping out rocks from beneath it. Kjær had 18 hours to find the mineral crystals that would confirm his suspicions.
Where is the crater where the asteroid hit?
The Chicxulub crater (IPA: [tʃikʃuˈlub]) is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is offshore near the communities of Chicxulub Puerto and Chicxulub Pueblo, after which the crater is named.
What is under Greenland ice?
The Hiawatha crater sits under about a half-mile (930 m) of ice, while the second crater is buried under 1.2 miles (2 km) of ice. The second crater is 22 miles (36 km) across, making it the 22nd-largest impact crater ever found on Earth. The first is a bit smaller at 19 miles (31 km) across.
How big was the asteroid that killed the dinosaurs?
around 12km wide The asteroid that killed the dinosaurs It was around 12km wide. The asteroid struck the Earth in the Gulf of Mexico's Yucatan Peninsula creating the 180-kilometer wide Chicxulub crater.
How old is Hiawatha?
58 million years ago Scientists now know the age of an enormous impact crater hidden under Greenland's ice. The Hiawatha crater, which sits under 0.6 mile (1 kilometer) of ice in northwest Greenland, formed 58 million years ago, according to a study published March 9 in the journal Science Advances.
How big was the meteor that killed the dinosaurs?
around 12km wide The asteroid that killed the dinosaurs It was around 12km wide. The asteroid struck the Earth in the Gulf of Mexico's Yucatan Peninsula creating the 180-kilometer wide Chicxulub crater.
Where did the planet killer in Greenland?
In Greenland (2020) the planet killer comet hits right smack in the middle of Scotland. This was a failed attempt to stop Gerard Butler making more disaster movies.