Earths

[ad_1] Best known for his well-populated crossover books, George Pérez died Friday at the age of 67, from complications of…

[ad_1] Lia Siegelman had just been studying the swirling waters of the Southern Ocean, which surrounds Antarctica, when she happened…

[ad_1] “It’s a really interesting and clear demonstration that sharks are using the Earth’s magnetic field as a kind of…