Mitochondrial Eve and Y-chromosomal Adam—two individuals who passed down a portion of their genomes to the vast expanse of humanity—are known as our most recent common ancestors, or MRCAs. But many aspects of their existence, ...
Archaeology
Aug 1, 2013
1
0
A Northwestern University astrophysicist has created the longest time-lapse video of an exoplanet to date.
Astronomy
Aug 10, 2023
0
1347
Using state-of-the-art ocean robots and scientific sensors attached to seals, researchers in Marine Sciences at the University of Gothenburg have for the first time observed small and energetic ocean currents in the Southern ...
Earth Sciences
Jun 26, 2020
0
227
In certain molecules, the so-called photoacids, a proton can be released locally by excitation with light. There is a sudden change in the pH value in the solution—a kind of fast switch that is important for many chemical ...
Analytical Chemistry
Apr 3, 2023
0
298
If you had to decide whether to receive $40 in seven days or $60 in 30 days, which would you choose? Your answer could have less to do with whether you are a patient or impatient person than with how the choice is presented, ...
Social Sciences
Apr 5, 2024
0
86
Some questions about our own planet are best answered by looking someplace else entirely… in the case of impact craters and when, how and how often they were formed, that someplace can be found shining down on us nearly ...
Space Exploration
Jan 10, 2013
0
1
Thanks to a microwave oven, the fundamental nanotechnology process of self assembly may soon replace the lithographic processing use to make the ubiquitous semi-conductor chips.
Nanomaterials
Oct 25, 2010
3
0
Satellite imagery confirms an enormous iceberg, around five times the size of Malta, has finally calved from Antarctica's Brunt Ice Shelf. The new berg, estimated to be around 1550 sq km and around 150 m thick, calved when ...
Environment
Jan 24, 2023
1
144
Tiny particles like pollen grains move constantly, pushed and pulled by environmental forces. To study this motion, physicists use a "random walk" model—a system in which every step is determined by a random process. Random ...
Mathematics
Mar 13, 2024
0
83
Since the beginning of archaeology, researchers have combed the globe searching for evidence of the first domesticated crops. Painstakingly extracting charred bits of barley, wheat, millet and rice from the remains of ancient ...
Archaeology
Feb 6, 2019
0
262
