NASA finds a weak and wispy Tropical Cyclone Cebile

Vertical wind shear had already taken its toll on Tropical Cyclone Cebile when NASA's Aqua satellite passed over the Southern Pacific Ocean on Feb. 8. Cebile, now a subtropical cyclone, appeared to have wispy clouds circling ...

Monitoring solar activity

Living near a star is risky business, and positioning a spacecraft near the sun is a very good way to observe rapidly changing solar activity and deliver early warning of possibly harmful space weather. ESA is now looking ...

NASA sees powerful storms around Cebile's Eye

When NASA's Aqua satellite passed over Tropical Cyclone Cebile it measured cloud top temperatures and saw its eye circled by an impressive ring of powerful thunderstorms just before it went through eyewall replacement.

Alaska quake shows complexity of tsunami warnings

The powerful earthquake that struck beneath the Gulf of Alaska early Tuesday generated a tsunami, but before gauges could show that it was very small, warnings went out to a vast swath of the state and British Columbia, while ...

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