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Editors of EarthSky

Intelligent civilizations rarer than one in a million

NASA’s Kepler mission has identified 2,740 planets orbiting other stars, but do any of them harbor intelligent life?

Astronomers ask public to help name Pluto’s new moons

The discoverers of Pluto's two tiniest moons are inviting the public to help select names for the new moons.

How the world’s saltiest pond gets its salt

Findings based on data gathered about the sustained salinity of Antarctica’s Don Juan Pond suggest that such ponds could be possible on Mars.

Salmon use Earth’s magnetic field to navigate ocean to river, says study

Scientists examined 56 years of fisheries data documenting the return of sockeye salmon to the Fraser River in British Columbia – and the route they chose showed a correlation with changes in the intensity of the geomagnetic field.

Waste dump at the end of the world

Ecologists propose managing strategies to protect the Antarctic where there is a genuine waste problem.

Mini-explosion before star’s supernova blast

Researchers discover a star’s “mini-explosion” taking place just a month before an all-out supernova explosion.

Video: Asteroid 2012 DA14’s safe passage near Earth on February 15

Asteroid 2012 DA14 – an object about half the length of a football field – will pass Earth on February 15, 2013. Watch NASA videos about this event.

Earth-like planets are right next door

Using publicly available data, astronomers have found that six percent of red dwarf stars have habitable, Earth-sized planets.

The wings of the Seagull Nebula

This new image from ESO shows a section of a cloud of dust and glowing gas called the Seagull Nebula. These wispy red clouds form part of the “wings” of the celestial bird.

A spiral galaxy with a secret

The NASA/ESA Hubble Space Telescope – with a little help from an amateur astronomer – has produced one of the best views yet of nearby spiral galaxy Messier 106.

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