All you need to know about why we can’t get a global climate deal.
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All Cracked Up: A Surprising Look Inside the Moon
The twin GRAIL spacecraft provide new insights into the moon’s tortured past
Voyager 1 at the Threshold of Forever
A 35-year old spacecraft prepares to exit the solar system and enter interstellar space
Dirt Found on Mars! Why the Red Planet Makes Us Crazy
The newest findings from Mars are solid, scientific and important – but they’re not enough to satisfy us
Top 10 Everything: Science & Space
In 55 wide-ranging lists, TIME surveys the highs and lows, the good and the bad of the past 12 months
EcocentricGoing Green
As the World Keeps Getting Warmer, California Begins to Cap Carbon
Carbon emissions keep rising and the world keeps getting hotter, but there’s little progress at the U.N. climate summit in Doha. If you want hope on climate change, though, look West—to California
Ancient Human Poop: Ah, the Tales It Can Tell
Humans leave a lot of priceless artifacts — and some not so priceless ones. But both kinds can teach us a lot.
Martian Life? Not. Learning From a False Alarm
A few ill-chosen words led to an explosion of speculation — and that matters
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Why Seeing Is Believing—Usually—When It Comes to Climate Change
When people have personal experience with climate change, they tend to become believers—unless they were already skeptics. Will extreme weather events like Sandy be enough to change the equation on climate change belief?
Window on Infinity: Pictures from Space
From Mars Curiosity’s self portrait to a destructive Saturn cyclone, view our monthly roundup of cosmic highlights from November 2012.