Comet 67P

Solar System

Comets Have (Ultraviolet) Aurora, Too

Observations from the European Space Agency’s Rosetta spacecraft show that Comet 67P/Churyumov-Gerasimenko has its own aurora.

Andoya Launch

Solar System

Rocket Barrage to Study Northern Lights

A series of 11 sounding rocket flights from two remote locations in the Arctic circle will help unlock the secrets of the processes behind the Northern Lights.

Substorm graphic

Solar System

Chorus Waves Drive the Beat for Pulsating Northern Lights

Scientists have finally confirmed a decades-old theory on what causes the faint flickering seen in the Northern Lights toward dawn.

Celestial News & Events

Giant Sunspots, Flares Presage Arrival of Solar Storm

Two big, naked-eye sunspot groups are putting on a splendid show this week. We're also in the crosshairs for a strong geomagnetic storm and possible auroras.

Northern Lights

Celestial News & Events

More Auroras Coming to Northern Skies

Keep your eye on the northern sky. Auroras are in the forecast for the next couple nights courtesy of a "hole" in the Sun's corona.

Extra-large Donut

Auroras

Aurora at Your Fingertips

A survey of free services and apps that let you keep tabs on space weather so you can anticipate the next great aurora.

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