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Editors of EarthSky

Fiery drama of star birth and death in Large Magellanic Cloud

Places where hot new stars are born and die - and sculpt their surroundings into odd shapes - in the dwarf galaxy orbiting our own Milky Way.

Even if emissions stop, carbon dioxide could warm Earth for centuries

Even if carbon dioxide emissions came to a sudden halt, the carbon dioxide already in Earth's atmosphere could continue to warm our planet for hundreds of years, says a new study.

Google Earth reveals untold fish catches

Large fish traps in the Persian Gulf could be catching up to six times more fish than what’s being officially reported.

Three questions about Comet ISON

Get the facts about comet ISON. The manager of NASA's Near-Earth Object Program Office shares the low-down on the stellar object's holiday travel plans.

Mach 1000 shock wave lights supernova remnant

The appearance of this "new star" stunned those who thought the heavens were constant and unchanging. At its brightest, the supernova rivaled Venus before fading from sight a year later.

Rain as acidic as lemon juice may have contributed to ancient mass extinction

MIT researchers find that rain as acidic as lemon juice may have contributed to massive die-offs on land 252 million years ago.

Colossal new predatory dino terrorized early tyrannosaurs

Named after a cannibalistic man-eating monster from a native American legend, this newly discovered large dinosaur had its reign of terror in what is now Utah.

Satellite trio to explore the Earth’s magnetic field

"Improving the exploration of the magnetic field's function and recording space weather data more accurately allows us to draw conclusions for life on our planet." - Johanna Wanka

Water of an ancient sea identified under Chesapeake Bay

Half a mile under Chesapeake Bay is the oldest sizable body of seawater to be identified worldwide. This ancient sea is thought to be 100-145 million years old.

What caused the monster gamma-ray burst of April 2013?

A monster gamma-ray burst - whose afterglow lasted months - may have come from the explosion of a giant star, say astronomers at the University of Copenhagen.

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