This map shows every tornado in the United States, assembled from 56 years of NOAA data. via World Shaker
A Tribute to Hubble and the Human Race
June 1, 2012
A video compilation featuring images from the Hubble Space Telescope, to celebrate how it has opened the portal of the universe to humanity, and how the astonishing images it has captured represent, literally and metaphorically, that humanity’s birthplace.
Greenland in White, Brown and Blue
June 1, 2012
In the image you can see a meltwater pond nestled amid the rock-and-ice covered fringe of Greenland. Most of the surface of Greenland is covered with fresh water—about 2.6 million cubic kilometers of it. Yet that water is frozen, locked up in ice and snow. NASA Photograph by Jim Yungel, NASA Wallops Flight Facility
British Isles are seen under clear skies
May 31, 2012
Sunglint and Clouds
May 31, 2012
What does earthquake magnitude mean?
May 30, 2012
An earthquake is the result of a sudden release of energy in the Earth’s crust that creates seismic waves. It is one of most powerful and most disastrous forces in nature. This animation compares the “sizes” of recent years historical earthquakes.
Sentinels of the Arctic
May 30, 2012
This picture was taken last winter in Finnish Lapland where weather can include sub-freezing temperatures and driving snow. These giant trees covered in snow and ice, are possibly the guardians of the North. Surreal landscapes sometimes result, where common trees become cloaked in white. Image Credit: Niccolò Bonfadini via apod
Sun eclipse and observers
May 29, 2012
During the May 2012 annular eclipse there was a group of astronomers and park rangers, observing the event from the Wahweap Lookout near Lake Powell, AZ. Visible on the solar disk are a few sunspots. Photographer: Steven Gilbert
Toxic mercury in the Arctic
May 29, 2012
Mercury, a toxic element, is accumulated in the Arctic Ocean by the flow of circumpolar rivers and atmospheric forces, according to Environmental scientists at Harvar. They find out that the mercury that actually comes from the rivers, is twice as much that from the atmospheric source. Above the Lena River delta. Image courtesy of NASA
We are Losing Our Starry Night
May 28, 2012
For the past several decades, as more and more of us are drawn to live in urban areas, it has become increasingly difficult to observe the night sky. Our skies are brightening and masking the wonders of the night sky and many of our generation have not witnessed the beauty of the summer Milky Way. Image Earth at Night, courtesy DMSP and NASA
