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Saturn backlit, Earth from a billion miles away
Back-lit Saturn Feb 25, 2008

Favorite Saturn pictures.

Imagine the Cassini spacecraft drifting in darkness, submerged in the long shadow...

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Birdkiller!
Cat May 16, 2007

A lot of people aren’t going to want to know this … It’s information that’s probably easier on dog lovers.

16 comments | More »
Reconcile Biblical dating with scientific dating?
clock face May 09, 2007

Twenty-five scientists responded to a question from a member of the Earth & Sky community about how to determine the age of the Earth.

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Top 10 things to know about nanotechnology
Tornado-like vortices forming within a spinning Bose-Einstein condensate. Apr 27, 2007

EarthSky’s guide to being in the know about nano.

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Earth Day 2007: a fine balance
Green ascension Apr 23, 2007

Can we consume our way to sustainability?

This Earth Day – April 22, 2007 – is expected to be the biggest one ever. The word or color “green” seems to be everywhere, from the plethora of green magazine issues …

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Activists will hold Day of Climate Action tomorrow
Step It Up stomped in snow Apr 13, 2007

Climate activists are organizing a day of citizen action to encourage Congress to cut carbon emissions by 80% by 2050.

6 comments | More »
Who are the U.S. poor?
Apr 10, 2007

A picture – or a few maps in this case – is worth a thousand words.

5 comments | More »
Butterflies in Finland ... to starfish in Monterey Bay
Apr 09, 2007

Guest post from Camille Parmesan, Associate Professor of Integrative Biology at the University of Texas.

Seventy-four to 91% of species that have changed have done so in accord with climate change predictions …

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After IPCC, 11 scientists explain warming consensus
Apr 09, 2007

Just what do the announcements from the IPCC represent? Is there a scientific consensus on global warming? What would a scientific consensus mean? Earth & Sky asked … and 11 scientists answered.

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New IPCC summary points to ongoing climate change
Earth has become a human world. Apr 06, 2007

According to a report released this morning by the Intergovernmental Panel on Climate Change (IPCC), there is firm evidence linking human-caused global warming with ongoing changes in the environment.

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