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Cool video! When humans stalked a giant sloth
Fossil footprints track a prehistoric hunt.
April 29, 2018
Take a virtual tour of 6 exoplanets
The virtual exoplanet tour has a cool 360-degree visual display. Since launching in late 2017, it's had over a million YouTube views. Check it out here.
April 29, 2018
Record microplastic found in Arctic sea ice
New research shows that even the Arctic Ocean isn't immune to an influx of plastic.
April 26, 2018
I run ‘facial recognition’ on buildings
An art historian describes how he and his team use an analysis technique similar to facial recognition, to unlock architectural secrets.
April 26, 2018
How TESS will hunt for alien worlds
Launched last week, TESS will scan 200,000 close and bright stars, seeking new planets and possibly livable worlds. Here's a roundtable discussion with 2 scientists on the TESS mission.
April 22, 2018
This Pacific island is the most plastic-polluted place on Earth
Explore remote, uninhabited Henderson Island in the South Pacific. It may look idyllic from above, but is littered with millions of tons of plastic.
April 22, 2018
April 21 is Astronomy Day
A beautiful chart from astronomer Guy Ottewell, showing the evening sky on Astronomy Day 2018. Plus links to Astronomy Day events and other info.
April 21, 2018
Was another civilization on Earth before humans?
How do we know earlier industrial civilizations on Earth didn't rise and fall long before humans appeared? That's the question posed in a new scientific thought experiment.
April 18, 2018
Green moon on April 20, 2018? Nah
For weeks, people have searched for this post more than any other at EarthSky. No, there won't be a green moon on April 20, 2018. It's a joke, y'all, with its roots (ahem) in cannabis culture. :-)
April 18, 2018
Underwater noise pollution stresses aquatic animals
The roar of motors, ping of military sonar, bangs and blasts from offshore development are distracting, confusing, and even killing, aquatic animals.
April 17, 2018
