PhysLink.com Logo

Physics & Astronomy News


<p>Schematic view of a bubble implosion, which is an envisioned picture showing the whole main events integrated, i.e., laser illumination, hot electron spread, implosion, and proton flash. (credit/ M. Murakami)</p>
Laser-driven Implosion
Scientists have discovered a novel particle acceleration mechanism called ‘micro-bubble implosion’
<p>Owens Valley Solar Array (EOVSA)</p>
New Insights into Solar Flares
New insights into solar flares' explosive energy releases were released by the Owens Valley Solar Array (EOVSA)

<p>In this illustration, the grid in the background represents the computational lattice that theoretical physicists used to calculate a particle property known as nucleon axial coupling. This property determines how a W boson (white wavy line) interacts with one of the quarks in a neutron (large transparent sphere in foreground), emitting an electron (large arrow) and antineutrino (dotted arrow) in a process called beta decay. This process transforms the neutron into a proton (distant transparent sphere). (Credit: Evan Berkowitz/Jülich Research Center, Lawrence Livermore National Laboratory)</p>
Life and Death of a Neutron
Experiments that measure the lifetime of neutrons reveal a perplexing and unresolved discrepancy.
<p>Precision assembly and mechanical technician Ryan Wilkinson inspects MOMA during thermal vacuum testing at Goddard</p>

<p>Credits: NASA</p>
Looking for Signs Life on Mars
Scientists have created a tiny chemistry lab for a rover that will drill beneath the Martian surface looking for signs of past or present life.


Massive Black Hole Devours a Star
Scientist create new models of Tidal Disruption Events - rare, but extremely forceful events taking place in the center of galaxies.
Dark Matter Limit Established
Experimental results from the XENON1T dark matter detector limit the effective size of dark matter particles to 4.1X10-47 square centimeters.
Water is not the same as water
Researchers have succeeded in separating the two forms of water to show that they can exhibit different chemical reactivities.

Science Facts

X-Rays - Another Form of Light

by Chandra X-Ray Observatory Center and ScienceIQ.com

X-rays can be produced by a high-speed collision between an electron and a proton.: Image Courtesy Chandra X-Ray Observatory Center A new form of radiation was discovered in 1895 by Wilhelm Roentgen, a German physicist. He called it X-radiation to denote its unknown nature. This mysterious radiation had the ability to pass through many materials that absorb visible light. X-rays also have the ability to knock electrons loose from atoms. Over the years these exceptional properties have made X-rays useful in many fields, such as medicine and research into the nature of the atom. Eventually, X-rays were found to be another form of light. Light is the by-product of the constant jiggling, vibrating, hurly-burly of all matter.

Like a frisky puppy, matter cannot be still. The chair you are sitting in may look and feel motionless. But if you could see down to the atomic level, you would see atoms and molecules vibrating hundreds of trillions of times a second and bumping into each other, while electrons zip around at speeds of 25,000 miles per hour.

When charged particles collide - or undergo sudden changes in their motion - they produce bundles of energy called photons that fly away from the scene of the accident at the speed of light. In fact they are light, or electromagnetic radiation, to use the technical term. Since electrons are the lightest known charged particle, they are most fidgety, so they are responsible for most of the photons produced in the universe.


Artists conception of matter swirling around a black hole, both in the accretion disk and captured by the magnetic field.
Astronomers Glimpse Feeding Of A Galactic Dragon

A team of radio astronomers has found a cold ring of gas around a supermassive black hole in the fiery nuclear region of quasar galaxy 'QSO I Zw 1,' the most detailed observational evidence yet that g ...
continue reading this fact
Lasers are really useful tools for making measurements.
How Lasers Work

Light is a fascinating thing. Or things, as the case may be. Electromagnetic energy that our eyes have developed to see, light has the same behavior and properties as all other electromagnetic radiati ...
continue reading this fact
The SOHO spacecraft recorded this CME on July 14, 2000. High-energy particles accelerated by the blast peppered the spacecraft
Solar Spitwads

Take a piece of paper. Make a little wad. If you're a kid, spit on it. Put it in a straw and blow hard. If your teacher sends you to the principal's office, here's your excuse: you were making a model ...
continue reading this fact





Support US

Our server costs have gone up and our advertising revenue has gone down. You do the math! If you find our site useful, consider donating to keep us going. Thanks!


Science Quote

'One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery every day.'

Albert Einstein
(1879-1955)





All rights reserved. © Copyright '1995-'2018 PhysLink.com   Privacy Statement | Cookie Policy