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.