News & Notes

Explore the Sea Floor Like Never Before

More than 70 percent of Earth is covered in oceans, but what’s below them has mostly been a mystery … until now. NASA recently unveiled the most complete map of the  

The Most Extreme Facts About Planet Earth

134 degrees is the hottest ever recorded temperature, measured in 2013 in Death Valley, California. 128 degrees below zero is the coldest ever recorded temperature, measured  

Concrete Doesn’t Dry Out — It Sets

OK, you probably already know that concrete starts out as a liquid and eventually becomes solid. But do you know how that process actually works? It’s not as easy as  
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