Pico do Fogo volcano in Cape Verde erupts, residents evacuated

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Pico do Fogo is a shield volcano in the Cape Verde islands, off Africa's west coast. After a 20-year quiet, it began erupting Sunday, causing hundreds to evacuate.

Deborah Byrd

November 24, 2014

Video: A year in the life of Earth’s CO2

Awesome visualization, based on an ultra-high-resolution NASA computer model, showing how carbon dioxide in our air travels around the globe.

Deborah Byrd

November 24, 2014

Hummingbird flies more like insect than bird, says study

You might think a hummingbird simply beats its wings so fast and hard it pushes down enough air to keep its small body afloat. Turns out it's much trickier than that.

Eleanor Imster

November 24, 2014

Study says gravity and Higgs boson interacted to save the universe

One second after the Big Bang, the Higgs boson should have caused a Big Crunch, collapsing the universe to nothing. But gravity saved the day.

Deborah Byrd

November 22, 2014

Venus returning to evening sky!

The sky's brightest planet, Venus, has been behind the sun as viewed from our earthly vantage point. By early December, it'll be back in your evening sky!

Deborah Byrd

November 22, 2014

Ten things you might not know about space

Ten oddities and misconceptions about space that you may -- or may not -- have heard before.

Larry Sessions

November 22, 2014

Thud of Philae landing on comet

Take 2 seconds to listen to a sound made 311 million miles away.

Eleanor Imster

November 21, 2014

Burning questions about winter cold

As the rest of Earth warms, debate continues on what’s causing the mid-latitude chill.

EarthSky Voices

November 21, 2014

One of the highest resolution images of Mercury, ever

MESSENGER spacecraft's fuel is nearly depleted. It will impact Mercury in March 2015. For now, space engineers are getting some of the best-ever Mercury pics.

Andrew R. Brown

November 21, 2014