Video: Chasing starlight

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Beautiful new time-lapse video from Jack Fusco, under Canada's dark skies.

December 9, 2014

Iridium flare over Georgia

Iridium flares come from iridium communications satellites. They happen when an antenna from one of these satellites reflects sunlight directly down at Earth.

Deborah Byrd

December 9, 2014

New Horizon spacecraft wakes up for encounter with Pluto system

It's awake! On Saturday, the New Horizons spacecraft came out of hibernation, at the doorstep of Pluto.

Editors of EarthSky

December 8, 2014

Killing rats to save birds as glaciers recede

Glacier melt means rats can reach bird nests on South Georgia, an island north of Antarctica and east of the Falklands. What to do? Send in helicopters!

EarthSky Voices

December 8, 2014

Tunnel View in Yosemite National Park, at night

Toby Harriman Photography captured this magnificent photo in November 2014, at Yosemite National Park in California.

Deborah Byrd

December 7, 2014

As Dawn approaches, new image of dwarf planet Ceres

1 Ceres is the largest and most massive object in the main asteroid belt, between the orbits of Mars and Jupiter. Dawn will reach it in March, 2015.

Andrew R. Brown

December 6, 2014

Dawn Journal: Update on trek from Vesta to Ceres

Dawn spacecraft's chief engineer and mission director at JPL shares insights. Dawn due to reach Ceres in March, 2015. First spacecraft ever to orbit two planetary bodies!

EarthSky Voices

December 6, 2014