Experiments conducted by Dorothy Retallack in the late 1960's seemed to show that plants hate rock 'n' roll yet thrive on certain other types of music such as Bach and Ravi Shankar. Specifically, she exposed a variety of plants in a 56 ft. chamber to the "acid rock" of Led Zeppelin, Vanilla Fudge, and Jimi Hendrix, and the plants began pointing in the opposite direction of the sound.
NASA's Planetary Protection Office is charged with two primary responsibilities: to ensure that outbound spacecraft do not contaminate the cosmos with organisms from Earth, and to protect the Earth from extraterrestrial microbes that could cause disease. The latter directive is especially important given that NASA hopes to one day retrieve rock samples from the surface of Mars. NASA official, John D. Rummel, envisions building a P-4 level containment facility, similar to what the CDC uses to study Earth's most dangerous viruses, for the analysis of Martian samples. Read more at Slate Magazine and NASA's Planetary Protection website.Image credit: NASA/JPL
Mount St. Helens erupted Friday afternoon, spewing a large cloud of ash and steam 16,000 feet into the sky. The event, which lasted for about 20 minutes, forced one airline to cancel flights and others to divert around the turbulent plume. The eruption rose from the southern edge of the 1,000-foot-tall lava dome in the volcano's crater. Following the initial eruption, the volcano appeared to die down and the ash and steam cloud drifted away. U.S. Geological Survey scientist Jeff Wynn called the eruption a "throat-clearing" and cautioned, "we'll see more events like this." Read more here.Photo credit: AP Photo/KOIN-TV
The likelihood of some type volcanic eruption at Mount St. Helens has increased to 70%, according to Jeff Wynn, a scientist for the U.S. Geological Survey. Pointing towards an imminent eruption are the quakes occurring there every three or four minutes with magnitudes of 3 to 3.3. Read more about the situation in this article from the Seattle Times. You can also check out the official Mount St. Helens VolcanoCam.