We constantly fret about external threats and foreign attacks — but its an entirely other level of concern when the offensive comes from outer space. Two close calls with asteroids earlier this year were a wake-up call about the …
![revealing_radar_640[1]](https://science.time.com/wp-content/uploads/sites/12/2013/05/revealing_radar_6401.jpg?w=480&h=320&crop=1 "revealing_radar_640[1]")
Videos
EcocentricWater
California Kindling: A Dry Winter and Reduced Snowpack Means Wildfires for the Golden State
The wildfire season is starting early in southern California this year, thanks in part to an unusually dry winter and spring. As the climate warms, will drought and fires become the norm?
Asteroid in a Bag: NASA’s Long, Strange Trip
The space agency’s latest plan for a manned mission—including capturing an asteroid and towing it to the moon—begs crddulity
All Eyes on the World: A Look Back at NASA’s Best Views of Earth
On a blue-sky day, it’s easy to look up into the far-reaching atmosphere and marvel at the wonders that it holds — and not even realize that anything is staring back at you. But in reality, fleets of satellites and aerospace …
First Video of the Near-Miss Asteroid
For something that made so much news and caused so much anxiety, the asteroid known as 2012 DA14 sure doesn’t look like much. A 150-ft. (45 m) rock that passed just 17,200 mi. (28,680 km) from Earth (or thousands of miles below …
EcocentricOil
Pipeline Politics: Backgrounding Keystone XL
Why has a single pipeline project gotten so much attention from the right and the left? TIME explains.
EcocentricEcocentric
Debating the New Environmentalism
Three of the top minds in environmentalism battle over whether the green movement needs to change.
EcocentricEcocentric
The History of Global Climate Negotiations, in 83 Seconds
All you need to know about why we can’t get a global climate deal.
EcocentricEcocentric
Watch the 2012 Atlantic Hurricane Season in 4.5 Minutes
This year’s storms in video format
EcocentricEcocentric
SXSW Eco: Searching for a New Environmentalism
At SXSW Eco in Austin, Bill McKibben and other top environmentalists debate the direction of the green movement. Will old ways work, or is change needed to come to grips with the scale of climate change?