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Posts by
EarthSky Voices
Imaging modern brains to study Stone Age thinking
We can't observe brain activity of extinct human species. But we can observe modern brains doing things that our distant ancestors did for clues to how their brains worked.
May 10, 2017
Asteroid 2014 JO25: What we learned
This article from NASA's Center for Near-Earth Object Studies provides fresh details on the closest approach by a large asteroid since 2004 ... and shows you how science works.
May 9, 2017
Why cats can’t resist (even a phony) box
Twitter has been blowing up with posts on cats' attraction to taped squares on the ground. An animal behavior expert explains what draws Fluffy to the #CatSquare.
April 25, 2017
Molecular clocks track human evolution
How do scientists figure out when evolutionary events happened? It turns out our DNA is a kind of molecular clock, keeping time via genetic changes.
April 9, 2017
Super halos around very young galaxies
Astronomers directly observed a pair of Milky-Way-like galaxies, seen when the universe was 8% of its current age. They were excited to find the young galaxies surrounded by huge halos.
March 26, 2017
Bodies freed from gravity’s grip
Life on Earth is used to gravity. So what happens to our cells and tissues in space?
March 17, 2017
Real-life Hoth is disappearing
Hardangerjøkulen, the Norwegian ice cap better known to Star Wars fans as the ice planet Hoth, is melting and may disappear by 2100.
March 15, 2017
What our teeth say about us
How anthropologists gather clues about how our ancestors lived from their teeth. Plus what will our teeth tell future anthropologists about us?
March 3, 2017
Galapagos tortoise back from the brink
Galapagos giant tortoises, once on the brink of extinction, have made a comeback.
February 28, 2017
20 years after Dolly
Everything you always wanted to know about the Dolly the cloned sheep and what came next, from a biomedical researcher and cloning expert.
February 25, 2017
