Astronomers like to say we are the byproducts of stars, stellar furnaces that long ago fused hydrogen and helium into the elements needed for life through the process of stellar nucleosynthesis.
Chemists, materials scientists and nanoengineers at UC San Diego have created what may be the ultimate natural sunscreen. In a paper published in the American Chemical Society journal ACS Central Science, they report the development of nanoparticles that mimic the behavior of natural melanosomes,…
Chemists have discovered that tiny particulate matter called aerosols lofted into the atmosphere by sea spray and the bursting of bubbles at the ocean’s surface are chemically altered by the presence of biological activity.
An international team of astronomers that included astrophysicists at UC San Diego has discovered that one of the closest brown dwarfs to our Sun has the same mass as a giant planet. However, because the object isn’t orbiting a star, the discovery challenges the very definition of a planet.
A team of scientists from UC San Diego and two other universities has received a five year, $7.5 million grant from the U.S. Department of Defense to unravel the fundamental properties of melanins, a family of natural pigments found in skin, hair, eyes and even the plumage of brightly colored birds.
By applying mathematical models to a large number of experiments in which bacterial growth is inhibited, a team of physicists, biologists and bioengineers from UC San Diego developed a “general growth law” that explains the relationship between the average cell size of bacteria and how fast they…
Sheldon "Shelly" Schultz, one of the founding members of the physics faculty at UC San Diego, who received world-wide acclaim for his contributions to the discovery of “metamaterials," died on January 31 at his home in La Jolla, CA. He was 84.
Molecular biologists at UC San Diego have unlocked the code that initiates transcription and regulates the activity of more than half of all human genes, an achievement that should provide scientists with a better understanding of how human genes are turned on and off.
Bones from dead turtles washed up on Mexican beaches indicate that Baja California is critical to the survival of endangered North Pacific loggerhead sea turtles, which travel some 7,500 miles from their nesting sites in Japan to their feeding grounds off the coast of Mexico.
Biologists at UC San Diego have documented for the first time how very large viruses reprogram the cellular machinery of bacteria during infection to more closely resemble an animal or human cell—a process that allows these alien invaders to trick cells into producing hundreds of new viruses, which…