Tag Archives: asteroid
Dinosaurs killed off by ‘one-two punch’ of climate change and asteroid strike
Many scientists believe the extinction was caused by an asteroid impact, while some think regional volcanism was to blame, and others suspect it was due to a combination of the two Dinosaurs were killed off by a ‘one-two punch’: Deadly … Continue reading
Warming pulses in ancient climate record link volcanoes, asteroid impact and dinosaur-killing mass extinction
A new reconstruction of Antarctic ocean temperatures around the time the dinosaurs disappeared 66 million years ago supports the idea that one of the planet’s biggest mass extinctions was due to the combined effects of volcanic eruptions and an asteroid … Continue reading
Did asteroid crash cause Earth?s rarest structure?
A lab made quasicrystal. The rarest crystals on Earth: Scientists reveal only two quasicrystals have EVER been found – and they were caused by colliding asteroids Naturally formed quasicrystals?crystal-like solids with supposedly impossible symmetries?are among the rarest structures on Earth. … Continue reading
New type of meteorite linked to ancient asteroid collision
An ancient space rock discovered in a Swedish quarry is a type of meteorite never before found on Earth, scientists reported June 14 in the journal Nature Communications. read more (e) Science News – Paleontology & Archaeology
Clues to ancient giant asteroid found in Australia
Scientists have found evidence of a huge asteroid that struck the Earth early in its life with an impact larger than anything humans have experienced. Scientists have found evidence of a huge asteroid that struck the Earth early in its … Continue reading
Scientists bore into dinosaur-era asteroid crater
DNA found in the sediments and rocks will be studied to identify what animals and plants were present and evolved after the impact. Credit: iStock Sixty-six million years ago an asteroid smashed into Earth releasing energy equivalent to 100 million … Continue reading
Clues to ancient giant asteroid found in Australia
Scientists have found evidence of a huge asteroid that struck the Earth early in its life with an impact larger than anything humans have experienced. read more (e) Science News – Paleontology & Archaeology
Clues to ancient giant asteroid found in Australia
Scientists have found evidence of a huge asteroid that struck the Earth early in its life with an impact larger than anything humans have experienced. Tiny glass beads called spherules, found in north-western Australia were formed from vaporized material from … Continue reading
Dinosaurs ‘already in decline’ before asteroid apocalypse
New research suggests that other factors, such as the break-up of continental land masses, sustained volcanic activity and other ecological factors, may possibly have influenced the gradual decline of dinosaurs. The long-necked giant sauropod dinosaurs were in the fastest decline, … Continue reading
Dinosaurs ‘already in decline’ before asteroid apocalypse
Dinosaurs were already in an evolutionary decline tens of millions of years before the meteorite impact that finally finished them off, new research has found. read more (e) Science News – Paleontology & Archaeology