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Textbook theory behind volcanoes may be wrong

In the typical textbook picture, volcanoes, such as those that are forming the Hawaiian islands, erupt when magma gushes out as narrow jets from deep inside Earth. But that picture is wrong, according to ...

Sep 08, 2014
4.9 / 5 (61) 14

Why is the moon leaving us?

We had a good run, us and the Moon. Grab your special edition NASA space tissues because today we're embarking on a tale of orbital companionship, childhood sweethearts and heartache.

Jun 10, 2014
2.1 / 5 (122) 87