The top view, taken by NASAs Hubble Space Telescope, is the first visible-light image of a dust ring around the nearby, bright young star Fomalhaut. The view at bottom points out important features in the image, such as the rings inner and outer edges. In order to image the faint ring, a coronagraph on Hubbles Advanced Camera for Surveys was used to eclipse the bright star, the position of which is indicated by a dot near the rings center. The center of the ring is about 1.4 billion miles away from the star. Astronomers believe that an unseen planet moving in an elliptical orbit is reshaping the ring.
Credit: NASA, ESA, P. Kalas and J. Graham (University of California, Berkeley), and M. Clampin (NASAs Goddard Space Flight Center)
Dusty disk around Fomalhaut makes ideal laboratory for studying planet formation
Astronomers zooming in on a nearby star with NASA’s Hubble Space Telescope have discovered unmistakable evidence of a planetary system: a perturbed dusty belt around the star that’s analogous to the vast Kuiper Belt of icy rocks encircling the sun.
While the discovery is expected to send astronomers scurrying to their telescopes to obtain direct images of a planet around the star, called Fomalhaut, it also provides a Rosetta stone for debris disks - the pancakes of rock and ice that form around new stars and coalesce into planets.
Robert Sanders | EurekAlert!
New NASA study improves search for habitable worlds
20.10.2017 | NASA/Goddard Space Flight Center
Physics boosts artificial intelligence methods
19.10.2017 | California Institute of Technology
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
20.10.2017 | Information Technology
20.10.2017 | Materials Sciences
20.10.2017 | Interdisciplinary Research