59
POPSAwesome research/ Homework resource I only found this the other day and mostly I'm clipping it for my own uses; however, it's a great resource and I thought I'd share. The site itself has pretty cool info too. 'Hope you guys like the clip.
52
POPSGIANT Crystals! Uh, yeah, I know, it's a stupid title and I normally have something more cerebral to say, but this is just plain cool. I wonder what could possibly explain my fascination with these crystals?
26
POPSNew clues on "The Great Dying" The lessons of the Permian-Triassic massacre are "directly applicable to the present," said John Isbell, a geoscientist at the University of Wisconsin in Milwaukee. He said the world today is in danger of exceeding a CO2 "threshold" that could set off an environmental upheaval as great as the one 251 million years ago.
21
POPSThe hottest water on Earth "Black smokers deep in the Atlantic are spouting 'supercritical' water at over 407 °C – something never before been seen in nature."
21
POPSSurprising Activity Discovered at Yellowstone Supervolcano What the researchers think is happening, on a short-term basis at least, is that the bulging Yellowstone hotspot north of the Tetons is pushing against the north edge of Jackson Hole and jamming it against the mountains. (This is also causing the southwest part of the Yellowstone plateau, under the hotspot, to slide downhill at a rate of one-sixth of an inch each year.).
18
POPSMass extinctions? Blame it on the ocean In the course of hundreds of millions of years the world's oceans have expanded and contracted in response to the shifting of the Earth's tectonic plates and to changes in climate. There were periods of the planet's history when vast areas of the continents were flooded by shallow seas such as the shark and mosasaur infested seaway that neatly split North America during the age of the dinosaurs. As those epicontinental seas drained, animals like mosasaurs and giant sharks went extinct, and conditions on the marine shelves where life exhibited its greatest diversity in the form of things like clams and snails changed as well.
18
POPSShock Discovery of Ancient Space Invader This rock sample contains fragments of the first asteroid ever discovered intact. The brown 'nuggets' in the sample once orbited the Sun, and are probably older than the planets in our Solar System.
17
POPSLarge methane release could cause abrupt climate change “This is a major concern because it’s possible that only a little warming can unleash this trapped methane. Unzippering the methane reservoir could potentially warm the Earth tens of degrees, and the mechanism could be geologically very rapid. Such a violent, zipper-like opening of the clathrates could have triggered a catastrophic climate and biogeochemical reorganization of the ocean and atmosphere around 635 million years ago.”