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The Most Amazing Alien Planet Discoveries of 2013

Mike Wall
Published: December 29, 2013

The Most Amazing Alien Planet Discoveries of 2013

NASA/JPL-Caltech

Data from NASA's Kepler mission finds evidence for at least 100 billion planets in our galaxy. Image released January 3, 2013.

While astronomers didn't bag that elusive first "alien Earth" in 2013, they made plenty of exciting exoplanet discoveries during the past year.

Click through to see a list of the top exoplanet finds of 2013, from a tiny world about the size of Earth's moon to a blue gas giant on which it rains molten glass.


Featured Blogs

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August 2014 and the summer of 2014 were Earth's warmest since records began in 1880. Global ocean temperatures during August 2014 were the warmest on record, and the 0.65°C (1.17°F) ocean temperature anomaly was the highest ever measured, beating the record set just two months previously in June 2014. The first eight months of 2014 (January–August) were the third warmest such period on record for the globe.

August 2014 Global Weather Extremes Summary

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Here is some basic, fundamental terminology related to tropical cyclones. Rather than a comprehensive and/or technical glossary, this represents the essence of the meaning & importance of some key, frequently used terms.

2013-14 - An Interesting Winter From A to Z

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It was a very interesting winter across a good part of the nation from the Rockies through the Plains to the Northeast. Let's break down the most significant winter storms on a month by month basis.

What the 5th IPCC Assessment Doesn't Include

By Angela Fritz
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Melting permafrost has the potential to release an additional 1.5 trillion tons of carbon into the atmosphere, and could increase our global average temperature by 1.5°F in addition to our day-to-day human emissions. However, this effect is not included in the IPCC report issued Friday morning, which means the estimates of how Earth's climate will change are likely on the conservative side.