So Jupiter's auroras are actually caused by its moons. As Io orbits, it continually loses a rain of charged particles that are trapped in the giant planet's magnetic field. Recently, astronomers spotted a giant flare in Jupiter's aurora, a brief brightening that was as large as the earth and gave off as much energy as a nuclear blast. It's still a mystery what caused the flare, though scientists believe the solar wind may have played a role. Influenza strains resistant to drugs If you skipped your flu shot this year and planned to take some of those new anti-flu drugs, think again.
Japanese researchers say strains of influenza are becoming resistant.
Over the past few years, several drugs have been marketed to reduce the duration and severity of a bout of the flu, but at least one of those drugs may be less effective today than it was a few years ago. Vesuvius victims died instantly The cities of Pompeii and Herculaneum have long been a silent tribute to the eruption of mount Vesuvius. The eruption preserved the cities, but killed thousands of people living there. Most were suffocated by smoke or roasted in the hot ash. Now it looks like some of those people died quicker than anyone thought possible.