Observations eventually expected lead to increased understanding of interstellar dust and gas
Using NASA’s orbiting Far Ultraviolet Spectroscopic Explorer, a team of astronomers from The Johns Hopkins University and elsewhere has taken an unprecedented peek beneath the "skirts" of the tunic-clad Orion the Hunter and come away with observations that may lead to enhanced knowledge of how interstellar dust absorbs and scatters ultraviolet starlight. "Understanding interstellar dust is important. After all, this is the stuff out of which, ultimately, planets, stars and even people are made," said team member Richard Conn Henry, a professor in the Henry A. Rowland Department of Physics and Astronomy at Johns Hopkins. Henry presented findings during the American Astronomical Society’s meeting this week in San Diego.
The constellation Orion, named for its resemblance to a powerful, tunic-clad hunter wielding a club and sword, is probably the greatest star factory in our galaxy, with thousands of young, hot, blue stars emerging from its great clouds of gas and dust. Led by Jayant Murthy of the Indian Institute of Astrophysics, the team examined data FUSE recorded near the most active region of current star formation.
A better way to weigh millions of solitary stars
15.12.2017 | Vanderbilt University
A chip for environmental and health monitoring
15.12.2017 | Friedrich-Alexander-Universität Erlangen-Nürnberg
DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.
Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
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