Check out these shots of spectacular lighting and dramatic skies around the world.
About 1,500 volcanoes are active on our planet, though only about a third have erupted during recorded history. Here are some that potentially could pose a threat to major inhabited areas.
This week: Get a bird's eye view of Marrakesh, some midsummer atmospheric fireworks -- and a massive solar plant in China.
Views from around the world: Downpours pick up as the atmosphere warms and a star-shape fort is captured from space. Plus: Is the new Bay Bridge shaky?
These places look alien, but they're actually on Earth.
This week: A terrifying pathway in Spain, Greenland lakes that drain in hours and a spacecraft spots the first night-shining clouds of the season.
This week: A special Earth Day planet pics looks at the world's largest desert, a massive iceberg on the move and a deep ocean dive where you can ride along.
NASA's Aqua satellite was in a unique position to capture spring's arrival on the East Coast.
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