Latest Impact events Stories
The largest known mass extinction in Earth's history, about 252 million years ago at the end of the Permian Period, may have been caused by global warming.
Environmental selectivity during three of the â€˜Big Fiveâ€™ mass extinction events focus of two paleontologistsâ€™ latest research.
Algae, not asteroids, were the key to the end of the dinosaurs, say two Clemson University researchers.
Comet 147P/Kushida-Muramatsu was captured as a temporary moon of Jupiter in the mid-20th century and remained trapped in an irregular orbit for about twelve years.
New research shows that extinction events tend to "cluster" on evolutionary lineages, wiping out entire â€œchunks of lifeâ€ as related species with a common ancestor vanish together.
Global calamities like the one that doomed most dinosaurs forever alter the varieties of life found on Earth, but new research shows that it doesn't take a catastrophe to end entire lineages.
It began with a furrowed brow, a moment of puzzlement, quickly dismissed.
The newly repaired Hubble Space Telescope is sending back exquisite pictures of debris from an object that collided with Jupiter, NASA officials said. Scientists interrupted calibration of Hubble's new Wide Field Camera 3, installed by astronauts in May, to photograph the debris field 360 million miles away, said Heidi Hammel, Hubble's lead astronomer at the Space Science Institute in Boulder, Colo.
Scientists have found evidence that another object has bombarded Jupiter, exactly 15 years after the first impacts by the comet Shoemaker-Levy 9.
U.S. scientists say research involving the exhaust plume from a NASA space shuttle launch suggests the 1908 Tunguska explosion was caused by a comet The mysterious explosion leveled 830 square miles of Siberian forest and a cause has never been determined.
Comet Shoemaker-Levy 9 -- Comet Shoemaker-Levy 9 is so-named because it was the ninth short-period comet discovered by Carolyn and Eugene Shoemaker and David Levy. It was first detected in a photograph taken on the night of March 24, 1993 with the 0.4-meter Schmidt telescope at the Mount Palomar observatory in California, and subsequently observed by many other astronomers. The comet was extremely unusual because it was in fragments, evidently due to a close encounter with the planet...
- Stoppage; cessation (of labor).
- A standing still or idling (of mills, factories, etc.).