Archaeologists have analyzed chemical residues from ceramic vases at the city of Cotzumalhuapa, Guatemala, revealing physical evidence of tobacco use in Mesoamerica, likely for ritual and therapeutic purposes.
Archaeology
Mar 5, 2024
2
135
Hundreds of thousands of stars are contained in this picture, an infrared image of Sagittarius C, a region near the center of the Milky Way. Taken with ESO's Very Large Telescope (VLT) in the Chilean Atacama Desert, this ...
Astronomy
Feb 13, 2024
0
40
Plastic pollution is a menace worldwide. Plastics are now found in every environment on the planet, from the deepest seas to the atmosphere and human bodies.
Environment
Jan 17, 2024
2
14
In 1900—some 22 years before he discovered the tomb of Tutankhamen—British archaeologist Howard Carter opened another tomb in the Valley of the Kings. In tomb KV42, Carter found the remains of a noblewoman called Senetnay, ...
Archaeology
Sep 2, 2023
0
28
Researchers at the Eberhard Karls University of Tübingen and colleagues in Germany have taken a closer look at the birch tar used to affix Neanderthal tools and found a much more complex technique for creating the adhesive ...
Earth is a dynamic and constantly changing planet. From the formation of mountains and oceans to the eruption of volcanoes, the surface of our planet is in a constant state of flux. At the heart of these changes lies the ...
Earth Sciences
Apr 4, 2023
0
227
Could consuming a cup of coffee be an effective way to protect yourself against infection with coronavirus? What has not yet been proven in practice is at least very plausible according to biochemical research.
Biochemistry
Nov 3, 2022
3
569
Broccoli, along with other plants and microorganisms, emit gases to help them expel toxins. Scientists believe these gases could provide compelling evidence of life on other planets.
Astrobiology
Oct 11, 2022
0
89
Mars explorers searching for signs of ancient life could be fooled by fossil-like specimens created by chemical processes, research suggests.
Planetary Sciences
Nov 16, 2021
5
240
Dragonfly wings, lotus leaves, cicada wings—thanks to millennia of evolution, nature has optimized the ways these surfaces and others behave to offer antibacterial functionality.
Condensed Matter
Apr 6, 2021
0
25
