Sentences with phrase «by a meteor impact»

The team of researchers, which also included David Evans of the Royal Ontario Museum and the University of Toronto and Caleb Brown of the Royal Tyrrell Museum of Paleontology, began by investigating whether the extinction at the end of the Cretaceous was an abrupt event or a progressive decline simply capped off by the meteor impact.
Another process that the scientists investigated was lithopanspermia — the means by which life - bearing material on one planet can be ejected by meteor impacts and delivered to the surface of another planet.
For instance, the Opportunity rover is now perched inside the rim of Victoria Crater, a feature 800 meters across and well over 70 meters deep that was excavated by a meteor impact millions of years ago.
Scientists have found organics from Earth's swamp trapped inside glass that had been created by a meteor impact almost a million years ago.

Not exact matches

If there was a huge meteor impact in the indian ocean by a comet, it would create a humongous tsunami that would sweep miles inland....
From the origin of the universe (big bang), to the origin of the moon (big collision), to the origin of lunar craters (meteor strikes), to the demise of the dinosaurs (asteroid impact), to the numerous sudden downfalls of civilizations documented by Jared Diamond in his 2005 book Collapse, catastrophism is alive and well in mainstream science.
Meteors impacting Jupiter's upper atmosphere can create spectacular fireballs, such as the one observed by amateur astronomers Gerrit Kernbauer and John McKeon on 17th March 2016.
The majority of the injuries in the Chelyabinsk impact were caused by broken glass sent flying into the faces of unknowing locals peering through their windows after the meteor's bright flash, he noted.
While the origin of life remains mysterious, scientists are finding more and more evidence that material created in space and delivered to Earth by comet and meteor impacts could have given a boost to the start of life.
Most light from meteors comes from spectral lines emitted by the elements they contain, so the impacts may be easiest to see though filters which isolate those lines.
Meteor Crater in Arizona, formed by a meteorite impact 50,000 years ago, contains bits of a hard, compressed form of silica called stishovite.
The ice has been attributed to comet and meteor impacts, but it is possible some of this ice could have come from the water released by eruption of lunar magmas.
When mysterious plumes were observed high in the Martian atmosphere by amateur astronomers back in 2012, explanations ranged from massive auroras to a meteor impact.
The Cool Stars 18 Public Lecture is sponsored by The Barringer Crater Company, owners since 1903 of The Barringer Meteorite Crater more commonly known as Meteor Crater, Earth's first proven and best preserved impact site.
During its approach, Rosetta has trained its navcams and OSIRIS camera at the comet, which sent back dramatic pictures of Churyumov — Gerasimenko; revealing it to be craggier and sharper edged than the asteroids and moons previously explored that had been worn down by billions of years of meteor impacts.
6/1/2017, By: David 64 - Impact Winter follows the story of five survivors in the wake of a devastating meteor impact with Impact Winter follows the story of five survivors in the wake of a devastating meteor impact with impact with Earth.
Poor L.A., always getting beaten up either by weather anomalies (Day After Tomorrow), giant meteors (Deep Impact), the Mayan doomsday calendar (2012)-- and yes, many alien invasions staking their claim on the City of Angels.
They are are likely the herald of the inevitable larger impact by a proper meteor that is expected to flatten Tilted Towers.
From what data exists about previous peroids of rapid climate change (i.e. climate change caused by an intrinsic mechanism such as a meteor impact, massive volcanic activity or human activity, as opposed to sun cycles), it seems that climate does show such behavior too.
This is what I meant by dividing the volcanic / sun / possible meteor impact and other «climate independent» events.
Chesapeake Bay is the site of an ancient impact crater, caused by a comet or meteor.
The scale suggest that we will eventually need to harness most of the power of the sun (solar) or be «sun - like» (fusion) to have the power necessary to avert these type of crises, either by blowing the meteor up ala Deep Impact of moving the planet out of the way.
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