Entire star cluster thrown out of its galaxy

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Galaxy M87 has thrown an entire star cluster toward us at two million miles per hour. The cluster's fate, scientists say, is to drift through the void between the galaxies for all time.

Editors of EarthSky

May 1, 2014

Guitar forest

This guitar-shaped forest is a piece of land art in Argentina. Here's how it looks from space.

Eleanor Imster

May 1, 2014

View from space: Arkansas tornado track

A violent tornado touched down in Arkansas on April 27, 2014, killing as many as 15 people. In an April 28 satellite image, you can see the tornado's track. Compare it to a satellite image of the same area taken before the tornado.

Editors of EarthSky

April 30, 2014

Exoplanet’s day lasts only 8 hours

The length of an exoplanet's day has been measured for first time. Planet Beta Pictoris b, 63 light-years away, is 16 times larger and 3,000 times more massive than the Earth, yet a day on the planet only lasts 8 hours.

Editors of EarthSky

April 30, 2014

Video: How tsunamis work

This 3-minute video explains what causes towering and treacherous tsunamis.

Eleanor Imster

April 30, 2014

A circuit board modeled on the human brain

New microchips based on the human brain are 9,000 times faster and use significantly less power than a typical PC.

Editors of EarthSky

April 30, 2014

Kansas tornado

Just one of the many tornados in a severe weather outbreak that struck the U.S. Central Plains and Southeast over the past few days.

Deborah Byrd

April 30, 2014

Photos and videos of U.S. tornadoes April 27-29, 2014

Photos and videos from the devastating storms killed at least a dozen people, and possibly many times that number, in the U.S. Central Plains and Southeast in recent days.

Deborah Byrd

April 30, 2014