Science Fair Supplies Sale
Science Fair Supplies Sale

Physics & Astronomy News

<p>This spectacular image from the VLT Survey Telescope shows the Cat’s Paw Nebula (NGC 6334, upper right) and the Lobster Nebula (NGC 6357, lower left). These dramatic objects are regions of active star formation where the hot young stars are causing the surrounding hydrogen gas to glow red. The very rich field of view also includes dark clouds of dust. With around two billion pixels this is one of the largest images ever released by ESO. A zoomable version of this giant image is available here.</p>

<p>Note that the circular features in the image around bright stars are not real, they are due to reflections within the optics of the telescope and camera.</p>


The Cat’s Paw and Lobster Nebulae
The beautiful, glowing, cosmic clouds of gas and dust catalogued as NGC 6334 and NGC 6357 now have new names.
<p>3-D visualization of chemically-ordered phases in an iron-platinum (FePt) nanoparticle. Using the Titan supercomputer at the Oak Ridge Leadership Computing Facility, researchers from Oak Ridge National Laboratory simulated the magnetic properties of strongly magnetic phases in the FePt nanoparticle using the precise 3-D atomistic structure obtained by researchers at University of California, Los Angeles and Lawrence Berkeley National Laboratory (Berkeley Lab). Video credit to Colin Ophus, Berkeley Lab. Video courtesy of Nature.</p>
First Look at Magnetism of Real Nanoparticle
Scientist help solve a unique problem: to model magnetism at the atomic level using experimental data from a real nanoparticle.

<p>This map of dark matter in the Universe was obtained from data from the KiDS survey, using the VLT Survey Telescope at ESO’s Paranal Observatory in Chile. It reveals an expansive web of dense (light) and empty (dark) regions. This image is one out of five patches of the sky observed by KiDS. Here the invisible dark matter is seen rendered in pink, covering an area of sky around 420 times the size of the full moon. This image reconstruction was made by analysing the light collected from over three million distant galaxies more than 6 billion light-years away. The observed galaxy images were warped by the gravitational pull of dark matter as the light travelled through the Universe.</p>

<p>Some small dark regions, with sharp boundaries, appear in this image. They are the locations of bright stars and other nearby objects that get in the way of the observations of more distant galaxies and are hence masked out in these maps as no weak-lensing signal can be measured in these areas.</p>


<p>Kilo-Degree Survey Collaboration/H. Hildebrandt & B. Giblin/ESO</p>
Dark Matter May be Smoother than Expected
Analysis of a giant new galaxy survey suggests that dark matter may be less dense and more smoothly distributed throughout space than previously thought.
<p>Interference pattern created by neutron holography.</p>


Holograms from Neutrons Created
For the first time, scientists have used neutron beams to create holograms of large solid objects, revealing details about their interiors in ways that ordinary laser light-based visual holograms cannot.

Oldest Known Planet-Forming Disk Found
Scientists find a star surrounded by the oldest known circumstellar disk—a primordial ring of gas and dust that orbits around a young star and from which planets can form.
New Technique May Help Detect Martian Life
A novel interpretation of Raman spectra will help the 2020 Mars rover select rocks to study for signs of life.
Stable Propagation of Light in Nano-Photonic Fibers
New model on how to achieve a more stable propagation of light for future optical technologies was published.

Science Facts


by  NASA STScI and

: Image Courtesy Mohammad Heydari-Malayeri (Paris Observatory, France), and NASA/ESA NASA's Hubble Space Telescope has taken a 'family portrait' of young, ultra-bright stars nested in their embryonic cloud of glowing gases. The celestial maternity ward, called N81, is located 200,000 light- years away in the Small Magellanic Cloud (SMC), a small irregular satellite galaxy of our Milky Way. These are probably the youngest massive stars ever seen in the SMC. The nebula offers a unique opportunity for a close-up glimpse at the 'firestorm' accompanying the birth of extremely massive stars, each blazing with the brilliance of 300,000 of our suns. Such galactic fireworks were much more common billions of years ago in the early universe, when most star formation took place.

Because the stars of the SMC are deficient in heavier elements, they too evolve much like the universe's earliest stars, which were made almost exclusively of primordial elements hydrogen and helium that were cooked up in the big bang. In fact, the SMC is a unique laboratory for studying star formation in the early universe since it is the closest and best seen galaxy containing so-called 'metal-poor' first and second generation type stars. Hubble's exquisite resolution allows astronomers to pinpoint 50 separate stars tightly packed in the nebula's core within a 10 light-year diameter - slightly more than twice the distance between earth and the nearest star to our sun. The closest pair of stars is only 1/3 of a light-year apart.

Before the Hubble observations, N81 was simply dubbed 'The Blob' because its features were indistinguishable in ground-based telescopes.

The target chamber inside which NIF
The World's Largest Laser

In a rural community in Northern California, in a building spanning the length of two football fields scientists are creating the world's largest laser. The National Ignition Facility project, know as ...
continue reading this fact
Comet Borrelly as Seen By Deep Space 1
Stars With Long Hair

Throughout history, people have been both awed and alarmed by comets, stars with 'long hair' that appeared in the sky unannounced and unpredictably. We now know that comets are dirty-ice leftovers fro ...
continue reading this fact
Fiberoptic cable
Delivered by TIR

The content of this article has been delivered to you via internet fiber-optic links. Today most phone conversations, fax transmissions and almost all internet and email traffic travel at the speed of ...
continue reading this fact

Get $10 OFF glasses at

Science Quote

'There must be no barriers for freedom of inquiry. There is no place for dogma in science. The scientist is free, and must be free to ask any question, to doubt any assertion, to seek for any evidence, to correct any errors.'

J. Robert Oppenheimer

All rights reserved. © Copyright '1995-'2017