Volcanic Activity Near Nyamuragira January 8, 2012 | Earth Observatory This image from Earth Observatory shows the heat of an active lava flow near Nyamuragira... Firefall over Yosemite’s El Capitan February 21, 2012 | Fox News This time of year in Yosemite National Park sometimes produces a unique phenomenon of illumination.... Lava Flow on Tolbachik January 2, 2013 | Earth Observatory NASA's Earth Observatory has a small collection of satellite images that document lava flows from... Lava Flow on Kizimen Satellite Image February 8, 2012 | NASA Earth Observatory "A thick lava flow has been creeping down the eastern slopes of Kizimen Volcano in... Collapse into the Halema’uma’u Lava Lake June 13, 2012 | USGS "This clip, captured by a video camera on the rim of Halema'uma'u to the southwest... Hot Rocks on Tolbachik Volcano February 21, 2013 | NASA Earth Observatory "Nearly three months after Tolbachik began erupting, lava continues to flow from the Kamchatkan volcano.... Orange Alert – Cleveland Volcano February 7, 2013 | Alaska Volcano Observatory "The development of a lava dome in the summit crater indicates that sudden explosions of... History of Volcanic Activity on Mars May 1, 2012 | European Space Agency "Five years of Mars Express gravity mapping data are providing unique insights into what lies... |