Corn cultivation spread from Mesoamerica to what is now the American Southwest by about 4000 B.C., but how and when the crop made it to other parts of North America is still a subject of debate. In a new study, scientists ...
Archaeology
May 14, 2020
0
19
Scientists at Caltech and Occidental College have discovered a methane-fueled symbiosis between worms and bacteria at the bottom of the sea, shedding new light on the ecology of deep-sea environments.
Ecology
Apr 4, 2020
6
708
Organic compounds called thiophenes are found on Earth in coal, crude oil and oddly enough, in white truffles, the mushroom beloved by epicureans and wild pigs.
Space Exploration
Mar 5, 2020
36
5483
Volcanic activity did not play a direct role in the mass extinction event that killed the dinosaurs, according to an international, Yale-led team of researchers. It was all about the asteroid.
Earth Sciences
Jan 16, 2020
17
2186
In understanding the global carbon cycle, "black carbon"—decay-resistant carbon molecules altered by exposure to fire or combustion—has long been presumed to originate on land and work its way to the ocean via rivers ...
Environment
Nov 7, 2019
4
527
A key tracer used to estimate how much atmosphere Mars lost can change depending on the time of day and the surface temperature on the Red Planet, according to new observations by NASA-funded scientists. Previous measurements ...
Space Exploration
Sep 6, 2019
20
1009
A new review of silicon cycling in glacial environments, led by scientists from the University of Bristol, highlights the potential importance of glaciers in exporting silicon to downstream ecosystems.
Earth Sciences
Aug 14, 2019
0
82
Together with an international team, Senckenberg scientist Hervé Bocherens studied the fossilized teeth of the carnivorous dinosaur Tarbosaurus bataar. Based on stable isotopes, the researchers were able to draw inferences ...
Archaeology
Jun 26, 2019
0
0
For the first time, it is now possible to measure, simultaneously and with extreme precision, four rare molecular variants of carbon dioxide (CO2) using a novel laser instrument. It is thus able to measure the temperature ...
Earth Sciences
May 20, 2019
0
19
Climate change affects all life on Earth, but it poses unique challenges for aquatic species. For example, as water warms it holds less dissolved oxygen than cooler water. As a result, the world's oceans, coastal seas, estuaries, ...
Ecology
May 14, 2019
0
8
