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Cassini’s final 5 starts August 14
Today, as part of its Grand Finale, the Cassini spacecraft begins its final 5 orbits, a set of ultra-close sweeps through Saturn’s upper atmosphere.
August 14, 2017
The story behind the 2017 eclipse stamp
A 1st-of-its-kind stamp that changes when you touch it, commemorating the August 21, 2017 total solar eclipse. Fred Espenak - whose photos are on the new stamp - tells the story.
August 12, 2017
Too hot to fly? How heat affects airlines
Major airports around the world will see more frequent flight restrictions in the coming decades because of increasingly common hot temperatures, say scientists.
August 9, 2017
See it! Full moon and partial eclipse
We in the Americas missed the partial lunar eclipse. Or maybe you were clouded out ... or slept through it? See it after all, in these awesome photos from EarthSky friends from around the world.
August 7, 2017
To restore soils, feed the microbes
Healthy soil teems with bacteria, fungi, viruses and other microorganisms that help store carbon and fend off plant diseases.
August 3, 2017
Gauging Arctic’s summer sea ice melt
This past winter, Arctic sea ice extent sank to a record low for the 3rd straight year. Now, NASA is looking at the summer melt season's impact on the Arctic's oldest, thickest sea ice.
July 27, 2017
Watch launch of new ISS crew July 28
Live launch coverage from Kazakhstan begins at 10:45 a.m. EDT (14:45 UTC). You can also watch the spacecraft dock with the ISS, starting at 5:15 p.m. EDT (21:15 UTC).
July 26, 2017
Gravitational anomaly seen in lab crystal
An exotic effect in particle physics, theorized to occur in immense gravitational fields — near a black hole, or in conditions just after the Big Bang — has been seen in laboratory crystal.
July 24, 2017
How to watch Shark Week
This is a week of dueling shark-athons on television. A biologist advises viewers to take what they see with a large grain of sea salt.
July 24, 2017
A shadow-band project for August 21
Shadow bands are elusive ripples of alternate light and dark, flitting over the ground or the sides of buildings during a total solar eclipse. How to take part in an International Shadow Band Campaign during the August 21 eclipse.
July 20, 2017
