Does anyone else remember that old Dr. Who episode where people drilled all the way to the mantle and lava threatened to envelope... oh, idk... I think it was the whole world? I was a kid at the time, so while I don't recall the plot with crystal clarity, I remember thinking it would be a bad thing to strike magma with a drill in much the same way as hitting a blood vessel in anime results in a pressurized red fountain. So, when I read via Slashdot that geothermal drillers had inadvertently struck magma in Hawaii, it caught my attention. Is molten lava from Hawaii threatening to flood the islands? Of course not, though the magma did push back up the bore hole for several meters before solidifying. While the discovery wasn't a success as far as seeking a source of geothermal energy, the magma chamber provides a great opportunity for geologists and geochemists to study how granites form. Drillers have struck magma before, but this chamber is different because it represents the shallowest encounter with very hot (over 1000°C) magma. The magma is a dacite, which makes it chemically different from the basalt of the Hawaiian Islands and surrounding crust. The dacite is similar to the granite found at the core of the continents, so it may be possible for scientists to observe the process by which rock changes from oceanic basalt to continental granite.