The crater is the first of its kind ever found on Greenland - or under any of the Earth's ice sheets - and is among the 25 largest known on Earth, said the report in the journal Science Advances.
A massive iron meteorite smashed into Greenland as recently as 12,000 years ago, leaving a crater bigger than Paris that was recently discovered beneath the ice with sophisticated radar, researchers said Wednesday.
"The crater formed when a kilometre-wide iron meteorite smashed into northern Greenland, but has since been hidden under almost a kilometre of ice", the university said.
"Earlier studies have shown that large impacts can profoundly affect Earth's climate, with major consequences for life on Earth at the time".
A team of researchers from the University of Copenhagen's Centre for GeoGenetics at the Natural History Museum of Denmark first spotted the crater in July 2015.
Modelling suggested the asteroid was more than a kilometre wide.
Las claves del bono de $5.000 para el sector privado
El decreto incluye un procedimiento obligatorio para las empresas que realicen despidos sin causa. Tampoco está incluido el sector doméstico, ni los trabajadores del campo.
Professor Kurt H Kjaer, from the Natural History Museum of Denmark and lead author of the research, said: "The crater is exceptionally well-preserved and that is surprising, because glacier ice is an incredibly efficient erosive agent that would have quickly removed traces of the impact. It is therefore very reasonable to ask when and how and this meteorite impact at the Hiawatha Glacier affected the planet".
In a remote area of northwest Greenland, an worldwide team of scientists has made a stunning discovery, buried beneath a kilometer of ice.
A flight over the Hiawatha Glacier where the impact crater lies was used to map the area using ice-penetrating radar.
A large hunk of an iron meteorite that was found near Hiawatha years ago now sits in the courtyard of the Natural History Museum in Copenhagen and it was researchers there who drew the connection. "We suspect these initially detached in Earth's gravity field and then decelerated as they entered the atmosphere to fall south of the Hiawatha crater", McDonald said.
He said: "While it requires more research, we consider it possible that the Cape York irons may have been outer fragments or even boulders on the surface of the main meteorite".