Haleakala, rising more than 10,000 feet from sea level, erupts every 200 to 500 years, according to the USGS Hawaiian Volcano Observatory. The last lava flow between 1420 and 1620 created the ...
This compressed view of the entire sky visible from Hawaii by the Pan-STARRS1 Observatory is the result of half a million exposures, each about 45 seconds in length, taken over a period of four years.