Originally published on Tue April 29, 2014 3:44 pm
Deadly tornadoes have wreaked havoc in the South, leveling homes and claiming at least 28 lives in the past three days. And meteorologists say the threat of more tornadoes won't ease up till Wednesday.
Getting to a safe place is the best thing that people can do to protect themselves and their families. That can mean a specially constructed concrete safe room, a basement, or just a ditch if you're caught outdoors.
We spend a lot of our lives getting from here to there. Everyday we slog from home to work and back again. Once a week we make the trek to the grocery store. A few times a year we take vacations across the state, the country or even across an ocean. Each trip, large or small, sets us in motion.
Water supplies in California are tight with the state's severe drought and that's putting a spotlight on hydraulic fracturing or fracking. The controversial oil and gas extraction technique uses freshwater, which can mean millions of gallons for each fracking site.
Lauren Sommer of member station KQED reports from California's Central Valley, where tensions between oil and agriculture are on the rise.
Keith Cowing discusses his campaign to save an old 1970s NASA spacecraft from becoming space junk. ISEE-3/ICE is a satellite that was once used to monitor space weather, but it's been unused for decades. NASA doesn't want to spend the money to bring it back to life, but Cowing and his colleagues are determined to do it. If they can raise $125,000 on a crowdfunding site called RocketHub, Cowing says they'll contact ISEE-3/ICE, wake it up and put it back to good use.
For the past month, in part of eastern Kansas, the prairie has been burning, as it does almost every spring. On some days, you could look toward the horizon in any direction and see pillars of smoke. The plumes of pollution have traveled so far that they've violated limits for particulates or ozone in cities as far away as Lincoln, Neb.
But here's the twist: Environmentalists have come to celebrate those fires.
This month, NASA revealed new details of the plan to send humans to Mars by 2030. It's an elaborate and expensive mission, involving a giant deep-space rocket, and roping an asteroid into the moon's orbit to use as a stepping stone to Mars.
But there are still some serious questions about a manned expedition to Mars. Namely, is it safe? That's where astronauts Scott and Mark Kelly come in. The Kelly brothers are identical twins, and the only siblings ever to both fly in space.