The collision of two black holes — a tremendously powerful event detected for the first time ever by the Laser Interferometer Gravitational-Wave Observatory, or LIGO — is shown in this still image from a computer simulation. After reading last week’s story about the supervolcano below Italy that might be close to waking up, a co-worker joked that Speaking of Science should start a spin-off blog titled, “Whoa, science is scary.”