Jupiters formation linked to that of primitive meteorites
Shooting the tube in the solar nebula? This is a side view of a crashing wave of gas using color to represent density. The height of the wave is about half of the Earth-sun distance at its highest point. The gas is thrown upward as it runs into a spiral arm in the nebula, then curls over and crashes back. The black arrows show the direction of gas flow. Just as with ocean waves, as the wave breaks it forms a tube. In this case, the "tube" is nearly 1,000 Earth diameters wide.
The process that formed the giant planet Jupiter may also have spawned some of the tiniest and oldest members of our solar system -- millimeter-sized spheres called chondrules, the major part of the most primitive meteorites. As witnesses to the early history of the solar system, chondrules may provide important clues to how the planets formed.
A report of this research result, by theorists Alan P. Boss of the Carnegie Institution of Washington and Richard H. Durisen of Indiana University in Bloomington, will be published in the March 10 issue of Astrophysical Journal Letters.
Hal Kibbey | EurekAlert!
MEMS chips get metatlenses
21.02.2018 | American Institute of Physics
International team publishes roadmap to enhance radioresistance for space colonization
21.02.2018 | Biogerontology Research Foundation
Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
22.02.2018 | Life Sciences
22.02.2018 | Information Technology
22.02.2018 | Health and Medicine