Talk of the Nation

You need one password to log in to your computer, another for your smartphone, one for your email, for your bank, your music collection, your Twitter, Facebook and LinkedIn accounts. Experts tell us those passwords should be long, contain numbers, letters and symbols and not include personal information like birth dates. Oh, and you're supposed to remember them all, too.

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IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow.

In a few weeks, NASA's Curiosity rover may use its powerful drill for the first time on Mars, and that has been a cause of a concern - not because the drill may be malfunctioning, but because the drill bit might be contaminated with germs from Earth.

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IRA FLATOW, HOST:

Last Monday, an amateur astronomer in Wisconsin, Dan Peterson, was gazing through his telescope when he caught sight of a flash of white light in Jupiter's gassy atmosphere. Lucky for him, someone else also had a scope trained on Jupiter that night. George Hall, an amateur astronomer in Dallas caught that flash on video, hard evidence that an explosion had indeed happened on the giant planet.

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IRA FLATOW, HOST:

This is SCIENCE FRIDAY, I'm Ira Flatow. How much of the world's energy needs could be met by wind power alone? Energy analysts are always quick to point out that the wind doesn't blow all the time, but it turns out that if you look worldwide, and you look up at the sky and not just at ground level, there's a lot of wind available, and that wind carries a lot of energy.

What happens at the Northeast Mycological Federation Foray? "Mushrooms only," according to attendee Gary Lincoff, an instructor at the New York Botanical Garden and author of The Audubon Society Field Guide to North American Mushrooms. Science Friday stopped by the conference for mushroom talk, mushroom crafts, mushroom eats and a mushroom hunt.