This week, we learned …
What is a rainbow, anyway?
Cyber Monday encourages consumers to shop online the Monday after Thanksgiving.
Photograph by HebiFot, courtesy Pixabay
What are some contemporary updates to Black Friday?
A gorgeous hawk at John Heinz National Wildlife Refuge at Tinicum echoes the skyline of Philadelphia.
Photograph by Derik Pinsonneault, courtesy U.S. Fish and Wildlife Service
How can urban planning help address the geography of poverty?
The National Science Foundation (NSF), which funds about two-thirds of the observatory’s annual US$12-million budget, has decided to continue operating it in collaboration with as-yet-to-be-decided partners.
Photograph by NAIC Arecibo Observatory, a facility of the NSF
What makes the Arecibo Radio Telescope so amazing?
The birds Darwin collected in the Galapagos inspired him and later scientists to develop the evolutionary principle of natural selection—the idea that animals evolve particular traits to suit their lifestyles.
Illustration courtesy National Geographic
As one Galapagos finch is adapting, learn how another is on the brink of extinction.
A biofuel containing some coffee oil will be used to power some of London’s buses. So far, the coffee partnership has produced enough coffee oil to power one bus for a year.
Photograph by Dun.can, courtesy Flickr. CC BY 2.0
What other public transportation options could caffeine up?
A traditional shibriya is more than a knife, says one blacksmith. “This is life and death.”
Photograph by יאיר צפורי, courtesy Wikimedia. CC-BY-SA-4.0
Who are the Bedouin?
Tourists on South Rim watch thunderhead cloud forming in Grand Canyon National Park, Arizona.
Photograph by Walter Meayers Edwards, National Geographic
Help forecast a thunderstorm with our great “Extreme Weather” interactive.
Yeah, that’s not what most people want to hear. Find out why.
Squash seeds found in fossilized dung is clear evidence that mastodons and mammoths ate the baseball-sized bitter squash and that the wild plant relied on them to disperse its seeds.
Illustration by Charles R. Knight, courtesy Wikimedia. Public domain
Would modern-day mastodons snack on pumpkins?
How can elementary schoolers uncover their own cognitive bias? Our educators have some ideas!