The sun-powered Solar Impulse 2 aircraft has been grounded in Hawaii, its crew said Saturday, after a grueling five-day, fuel-less flight across the Pacific Ocean overheated its batteries.
Energy & Green Tech
Jul 11, 2015
0
785
It began as a point of light. Then, it evolved into a fuzzy orb. Now – in its latest portrait from NASA's New Horizons spacecraft – Pluto is being revealed as an intriguing new world with distinct surface features, including ...
Space Exploration
Jul 11, 2015
18
8788
To the untrained eye, it's just a lot of birds on an otherwise deserted stretch of muddy, flat coastline. But for ornithologists, North Korea's west coast is a little piece of paradise each spring—and both the birds and ...
Ecology
Jul 11, 2015
0
74
