First study results of Russian Chelyabinsk meteor published
The meteor that exploded over Chelyabinsk, Russia in February 2013 was "a wake-up call," according to a University of California, Davis scientist who participated in analyzing the event. The work is published ...
Possible trigger for volcanic 'super-eruptions' found
The "super-eruption" of a major volcanic system occurs about every 100,000 years and is considered one of the most catastrophic natural events on Earth, yet scientists have long been unsure about what triggers ...
Expanding Spot on Venus Puzzles Astronomers
Impact hypothesis loses its sparkle
Shock-synthesized diamonds said to prove a catastrophic impact killed off North American megafauna can't be found.
Hearing the Russian meteor, in America: Sound arrived in 10 hours, lasted 10 more
(Phys.org) —How powerful was February's meteor that crashed into Russia? Strong enough that its explosive entry into our atmosphere was detected almost 6,000 miles away in Lilburn, Ga., by infrasound sensors – a full ...
Meteorite find may be 'missing half' of interstellar collision
Last dinosaur before mass extinction discovered
A team of scientists has discovered the youngest dinosaur preserved in the fossil record before the catastrophic meteor impact 65 million years ago. The finding indicates that dinosaurs did not go extinct ...
How ancient impacts made mining practical
About 1.85 billion years ago, in what would come to be known as Sudbury Canada, a 10 kilometer wide asteroid struck with such energy that it created an impact crater 250 kilometers wide. Today the chief industry of Sudbury ...
Incoming! Then outgoing! Waves generated by Russian meteor recorded crossing the US
(Phys.org) —A network of seismographic stations recorded spectacular signals from the blast waves of the meteor that landed near Chelyabinsk, Russia, as the waves crossed the United States.
New Mars rover to land in intriguing giant crater
The latest Mars destination is a giant crater near the equator with an odd feature: a mountain rising from the crater floor.
Researchers discover new impact crater in the Arctic
(Phys.org) -- Researchers from the University of Saskatchewan and the Geological Survey of Canada (GSC) have discovered a massive meteor impact from millions of years ago in Canadas western Arctic.
Taking a deeper look at lunar soil, with X-ray vision
(PhysOrg.com) -- Using a new imaging technique, materials scientists open a window on the moon's geological history.
Surviving mass extinction by leading a double life
(PhysOrg.com) -- Drifting across the world's oceans are a group of unicellular marine microorganisms that are not only a crucial source of food for other marine life -- but their fossils, which are found in abundance, provide ...
Scientists on the look-out for a 'Hartley-id' Meteor Shower
This month, Comet Hartley 2 has put on a good show for backyard astronomers. The comet's vivid green atmosphere and auburn tail of dust look great through small telescopes, and NASA's Deep Impact/EPOXI probe i ...