= spaces available= guaranteed= few spaces left= booked out
Search for photos:
Enter keywords to search our photo archive. Hints: You can use " " to find exact matches or group words. You can prefix words using logical operators AND / + (default), OR, or NOT / - to refine your search results.
Latest VAAC alerts The Volcanic Ash Advisory Centers provide near-real time global monitoring of volcanic ash plumes for aviation. Read the latest (or browse past) advisories.
Igneous or magmatic rocks The most primitive rock type forms when magma (molten rock) solidifies - either inside the earth (plutonic rocks) or during volcanic eruptions (volcanic rocks). A short overview.