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NASA spacecraft spies electric-blue clouds over Antarctica
These noctilucent, or night-shining, clouds are seeded by debris from disintegrating meteors. They glow electric blue when they reflect sunlight.
January 7, 2018
Ocean plastic killing marine turtles
Hundreds of marine turtles die every year after getting tangled in trash - such as plastic ‘six pack’ holders and discarded fishing gear - in oceans and on beaches.
January 7, 2018
How deep is your snow?
It’s really hard to measure snowfall accurately. The National Weather Service relies on more than 8,000 volunteers with rulers.
January 5, 2018
See it! High tides and winter storms
High tides followed Monday's supermoon, as Storm Eleanor plowed into Europe. Then a "bomb cyclone" hit the U.S. East Coast. Photos here showing winter's power and terrible beauty.
January 4, 2018
Ringing in 2018 with 85 new species
From sea slugs to sharks to flowering plants, spanning 5 continents and 3 oceans, these new discoveries add to Earth’s tree of life.
January 3, 2018
Top 7 EarthSky galleries of 2017
EarthSky sends out a year's worth of thank yous to our friends from around the world who shared images with us throughout the year. Please keep sharing in 2018!
December 30, 2017
Top 7 EarthSky stories of 2017
Here are 7 of the most-viewed news and feature stories of this past year.
December 29, 2017
Pine Island iceberg under midnight sun
Satellite view of iceberg B-44 on December 15, near midnight.
December 29, 2017
Sorry cat-lovers: New study says dogs are smarter
The study - from a self-confessed dog lover - counted cells in animals' brains associated with thinking, planning and complex behavior.
December 28, 2017
