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Editors of EarthSky

Nearby super-Earth likely a diamond planet

A rocky planet twice Earth's size orbiting a nearby star might be a diamond planet.

Why nasty noises make us squirm

The screechy sound of chalk on a blackboard is unpleasant because of the heightened activity between the emotional and auditory parts of our brain, research shows.

Magnetic pole reversal not a sign of doomsday

Earth's magnetic field has flipped its polarity many times over the millennia.

Sweeping X-ray imaging survey of dying stars is uncharted territory

The death throes of dying stars are the focus of a sweeping new survey using NASA’s Chandra X-ray satellite observatory.

EarthSky featured blogger in Best Science Writing Online 2012

EarthSky Lifeform of the Week blogger has a post included in the 2012 edition of Best Science Writing Online. Congratulations, Alex! We are proud of you.

Drawing a line, with carbon nanotubes

New low-cost, durable carbon nanotube sensors can be etched with mechanical pencils.

Large water reservoirs at the dawn of stellar birth

Massive amounts of water vapor discovered in a gas and dust cloud could one day provide a rich water reservoir to feed potential new planets.

View from space: Sea ice 2012 versus sea ice 1984

Two maps, created from satellite data, compare the Arctic ice minimum extents in 2012 and 1984.

Sleeping brain behaves as if it’s remembering something

UCLA researchers have for the first time measured the activity of a brain region known to be involved in learning, memory and Alzheimer's disease during sleep.

Probing Earth’s mysterious radiation belts

They're home to killer electrons, plasma waves, and intense electrical currents that can destroy satellites' electronics - and they're unpredicatable.