7.2-magnitude earthquake in Mexico

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USGS said the quake was centered northwest of the Pacific resort of Acapulco, where many Mexicans are vacationing for the Easter holiday.

Deborah Byrd

April 18, 2014

Tiger beetle dance

A visual representation of a tiger beetle’s trajectories as it chases prey.

Eleanor Imster

April 18, 2014

First potentially habitable Earth-sized planet discovered

The first Earth-sized exoplanet orbiting within the habitable zone of another star has been confirmed. The new planet, dubbed Kepler-186f, was discovered using NASA’s Kepler telescope.

Editors of EarthSky

April 17, 2014

Did vitamin B3 come from space?

Vitamin B3 - a vitamin essential to metabolism - might have been made in space and delivered to Earth by meteorites.

Editors of EarthSky

April 17, 2014

New cross section of the universe

New Hubble image shows objects ranging from cosmic near neighbors to objects seen in the early years of the universe.

Editors of EarthSky

April 17, 2014

Neanderthals bred with modern humans, study confirms

Advanced genetic analysis and statistical modeling have confirmed that early humans mated with Neanderthals.

Planet Earth Online

April 17, 2014

Total lunar eclipse over Soda Butte Cone

"Blood Moon" over Yellowstone by Zack Clothier Photography

Eleanor Imster

April 17, 2014

Cosmic slurp: Where a black hole swallows a star

Astronomers have identified galaxies where a central black hole just disrupted and ‘ate' a star. It's like a black hole putting up a sign that says: Here I am.

Editors of EarthSky

April 16, 2014

Unexpected teleconnections in noctilucent clouds

Researchers investigating "night-shining" clouds found something they weren't even looking for: teleconnections in Earth's atmosphere that stretch all the way from the North Pole to the South Pole and back again

Editors of EarthSky

April 16, 2014