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Editors of EarthSky

Death stars in Orion blast planets before they even form

Young stars in the Orion Nebula get their potential planet-forming dust and gas blasted away if they're near enough to 'death stars' - massive O-type stars that emit fierce ultraviolet radiation.

A telescope bigger than a galaxy

Astronomers have figured out how to use the gravity of distant galaxies to bend light and magnify images, forming gigantic telescopes that see deeper into the cosmos than ever before.

Watch a near-Earth asteroid online Sunday night

Asteroid 2014 CU13 will pass about 8 lunar distances (2 million miles or 3 million km) away. Both the Virtual Telescope Project and Slooh will be broadcasting.

A river of plasma guards us from solar storms

MIT scientists identify a plasma plume that naturally protects the Earth against high-energy solar activity.

Shark studies go electronic

Shark-cams, sensors, electronic pills reveal sharks' secrets.

Monster black hole spins at half the speed of light

Light speed is about 300,000 kilometers per second (186,000 miles per second), so this black hole is spinning almost unbelievably fast.

Watch March come in like a lion over eastern U.S.

Satellite video captures the awesome power of the winter storms that hit the eastern U.S. on the first days of March.

Rising seas threaten world cultural sites, says study

Statue of Liberty, Independence Hall, Tower of London and Sydney Opera House are among sites that could be lost to rising seas if current global warming trend continues.

Horses found competing with endangered pandas for bamboo

At the Wolong Nature Reserve for endangered pandas, horses belonging to farmers were found grazing on bamboo, the pandas' only food source.

Rocket launched straight into aurora

A NASA-funded sounding rocket launched straight into an aurora over Venetie, Alaska, on March 3, 2014.