IHC After Dark: The poles are shifting in 2013. It’s a fact.
And I know he’s serious, because he seriously mentions Atlantis.
New definition of the “Goldilocks Zone” puts Earth just on the edge of habitability

With more and more exoplanets being discovered every day, scientists need to define a better idea of the “Goldilocks Zone”, that is an area that’s not too hot, not too cold and just right for life. And in the new definition, Earth just barely fits in.
Minute Physics: The 10 reasons we know the Earth is round
These days, we take it for granted that the Earth is spherical. But how did we know this well before we went to outer space to look at our planet from a distance? Math and science.
Portrait of Global Aerosols
This portrait of global aerosols was produced by a GEOS-5 simulation at a 10-kilometer resolution. Dust (red) is lifted from the surface, sea salt (blue) swirls inside cyclones, smoke (green) rises from fires, and sulfate particles (white) stream from volcanoes and fossil fuel emissions.
High-resolution global atmospheric modeling provides a unique tool to study the role of weather within Earth’s climate system. The Goddard Earth Observing System Model, Version 5 (GEOS-5) is capable of simulating worldwide weather at resolutions of 10 to 3.5 kilometers (km).
Awesome Earth photo of the day: Sulphur burning bright blue in the crater of Kawah Ijen, Indonesia
Photo by Olivier Grunwald
Submitted by KO
Afternoon music: The Sound of Earth
Clearest audio of what Earth sounds like yet. Appearently it sounds like tree frogs and crickets….
This is what the Earth’s oceans would look like if the planet didn’t spin

The familiar map of Earth looks like it does in part because of the fact that the Earth spins, which more or less evenly distributes the water across the surface. If the Earth had no spin, most of the ocean water would pool near the poles, leaving the equator region high and dry.
Just for fun, scientists vaporize the Earth in a simulation

One day, a long long long time from now, the Sun will expand to many times its current size, engulfing the inner planets, including our own Earth, vaporizing our atmosphere and rocks and trees and cute baby deer. What will that look like? Some astronomers at Washington University St. Louis decided to find out.
Minute Physics: What if Earth were hollow?
There are still kooks out there who swear the Earth is hollow, but what if that were really the case? Minute Physics examines.
There’s more water on Europa than there is on Earth

As vast and deep as the oceans look to us, compared to the rest of our rocky planet, our mighty oceans are but a thin skin of water . In the above illustration from the USGS above, you can see that all of Earth’s water, if condensed into a single ball, would only be half as wide as the US. Europa on the other hand, has quite a bit more. There goes the sci-fi stories about aliens invading Earth to get our precious water.
What Earth would look like if it had rings like Saturn
This video is from 2009 and it might be a repost, but it’s worth reposting if it is. Beyond just thinking about how cool it would be to see Earth from a distance if we had thick Saturnian rings, it’s fascinating to imagine how human civilization and mythology would have been incredibly different with rings in the sky.

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