3
POPSNew Comet http://blogs.discovermagazine.com/80beats/2008/08/18/a-newly-discovered-comet-brings-tidings-from-the-oort-cloud/
0
POPSQuality Flash Games So many good games here in one site with great site navigation point and click the game you like for instant loading, no popups, free from ad saturation... bookmark and enjoy hours of fun here.
20
POPSInternet-Telescope Will Provide Movie-like Window on Universe LSST is designed to be a public facility. The database and resulting catalogues will be made available to the public with no proprietary restrictions. A sophisticated data management system will provide easy access, enabling simple queries from individual users. The public will actively share the adventure of discovery.
12
POPSGiant Impactor Theory what makes science attractive, is the ability to develop methods to test the solidity of the basic theories. one has to wait and see what would be the impact :)
13
POPSAsteroid Impacts On Earth: A Protection Plan Indeed, over billions of years, the Tree of Life here on Earth has been whacked time and time again by what Schweickart labeled as “the crazy cosmic gardener.” “The good news is that we can do something about this,” the former astronaut explained. “The marriage of we human beings and the machines that we’ve created are now at a level of capability which enables us to fire the crazy cosmic gardener. We can stop this process from occurring again.”
0
POPSsolar system I feel like I'm out in the solar system right now...floating without a safety harness
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.
11
POPSSea's Ebb And Flow Drive World's Big Extinction Events Arnold I. Miller, a paleobiologist and professor of geology at the University of Cincinnati, says the new study is striking because it establishes a clear relationship between the tempo of mass extinction events and changes in sea level and sediment: "Over the years, researchers have become fairly dismissive of the idea that marine mass extinctions like the great extinction of the Late Permian might be linked to sea-level declines, even though these declines are known to have occurred many times throughout the history of life. The clear relationship this study documents will motivate many to rethink their previous views."
23
POPSNASA Plans to Visit the Sun The two mysteries prompting this mission are the high temperature of the sun's corona and the puzzling acceleration of the solar wind: Mystery #1—the corona: If you stuck a thermometer in the surface of the sun, it would read about 6000o C. Intuition says the temperature should drop as you back away; instead, it rises. The sun's outer atmosphere, the corona, registers more than a million degrees Celsius, hundreds of times hotter than the star below. This high temperature remains a mystery more than 60 years after it was first measured. Mystery #2—the solar wind: The sun spews a hot, million mph wind of charged particles throughout the solar system. Planets, comets, asteroids—they all feel it. Curiously, there is no organized wind close to the sun's surface, yet out among the planets there blows a veritable gale. Somewhere in between, some unknown agent gives the solar wind its great velocity. The question is, what?
4
Pops
Newest Clips
Latest Comments
Most Pops
Print
Save
Turn on live update