A new study shows climate change may have contributed to the decline of Cahokia, a famed prehistoric city near present-day St. Louis. And it involves ancient human poop.
Earth Sciences
Feb 25, 2019
9
955
Lager beer is cold, crisp, dry—and worth about half a trillion dollars worldwide.
Plants & Animals
Jan 30, 2019
7
631
Scientists have long speculated that our planet's climate system is intimately linked to the Earth's celestial motions.
Earth Sciences
Jan 14, 2019
10
678
Our future on Earth may also be our past. In a study published Monday (Dec. 10, 2018) in the Proceedings of the National Academy of Sciences, researchers show that humans are reversing a long-term cooling trend tracing back ...
Earth Sciences
Dec 10, 2018
30
1135
University of Wisconsin-Madison researchers have made a material that can transition from an electricity-transmitting metal to a nonconducting insulating material without changing its atomic structure.
Condensed Matter
Nov 29, 2018
2
168
Some 50 million years before humans figured it out, agriculture arrived in the world in a seemingly unlikely place: an ant hill.
Plants & Animals
Oct 1, 2018
0
159
In one video, you can see a hungry caterpillar, first working around a leaf's edges, approaching the base of the leaf and, with one last bite, severing it from the rest of the plant. Within seconds, a blaze of fluorescent ...
Biotechnology
Sep 13, 2018
15
2686
As plants stretch toward the summer sun, they are marching toward one of the most important decisions of their lives—when to flower. Too early, and they might miss out on key pollinators. Too late, and an early frost could ...
Biotechnology
Aug 6, 2018
0
77
The Laguna del Maule volcanic complex in Chile is a large, complicated and explosive landscape that, oddly, lacks the classic cone seen on many volcanoes, including Fuego, the Guatemalan volcano that killed hundreds in a ...
Earth Sciences
Jun 27, 2018
0
93
Place a chunk of the clear mineral Iceland spar on top of an image and suddenly you'll see double, thanks to a phenomenon called double refraction—a result of a quality of the crystal material called optical anisotropy. ...
Optics & Photonics
Jun 19, 2018
2
208
