Several spots are evenly spaced along Pluto's equator, with each having a diameter of about 300 miles, according to NASA. ... Читать дальше »

Mark Antony and Cleopatra are among the most famous pairs of lovers from the ancient world.  Following their defeat at the Battle of Actium in 31 B.C., they took their final refuge from the victorious Octavian in Egypt, where Cleopatra was queen. In 30 B.C., Egypt was invaded, and following the Battle of Alexandria, the two lovers lost their lives, under circumstances that most historians believe was suicide (though some maintain it was murder). ... Читать дальше »

Rejuvenation of previously intruded silicic magma is an important process leading to effusive rhyolite, which is the most common product of volcanism at calderas with protracted histories of eruption and unrest such as Yellowstone caldera (Wyoming), Long Valley caldera (California), and Valles caldera (New Mexico) in the United States. ... Читать дальше »