An image of the sunspot with the Earth shown to scale. The image has been colorized for aesthetic reasons. This image with 0.1 arcsecond resolution from the Swedish 1-m Solar Telescope represents the limit of what is currently possible in terms of spatial resolution. CREDIT: The Royal Swedish Academy of Sciences, V.M.J. Henriques (sunspot), NASA Apollo 17 (Earth)

A view of Black Tusk in Garibaldi Provincial Park, British Columbia, Canada. It is the core of an extinct stratovolcano, formed about1.2 million years ago when the loose cinderaround it eroded, leaving only the hard lavacore. At 2,319 m (7,608 ft) above sea level, it is particularly noticeable from the Sea-to-Sky Highway just south of Whistler, B.C.