Physics & Astronomy News

<p>This image shows ultrathin, flexible, and transparent oxide thin-film transistors produced via the ILLO process.</p>

<p>Image courtesy: KAIST</p>
Wearable Thin-Film Transistors Developed
KAIST develops ultrathin, transparent oxide thin-film transistors for wearable display.
<p>Hologram of a single photon: reconstructed from raw measurements (left) and theoretically predicted (right).</p>

<p>Image Source: FUW</p>
Single light particle hologram created
Scientists at have created the first ever hologram of a single light particle.

<p>A new process allows materials synthesized at the nano-level to be scaled to larger sizes to take advantage of their mechanical, optical, and energy properties. Xiaoyu 'Rayne' Zheng, assistant professor of mechanical engineering, describes the process in the journal Nature Materials.</p>
Upsizing nanostructures into 3-D printed materials
A new process allows materials synthesized at the nano-level to be scaled to larger sizes to take advantage of their mechanical, optical, and energy properties.
<p>An artist’s portrayal of a Warm Jupiter gas-giant planet (r.) in orbit around its parent star, along with smaller companion planets. Image credit: Detlev Van Ravenswaay/Science Photo Library</p>
Warm Jupiters Not As Lonely As Expected
Astronomers have given us our clearest understanding yet of a class of exoplanets called “Warm Jupiters”, showing that many have unexpected planetary companions.

Tiny hard disk writes information atom by atom
A team of scientists to build a memory of 1 kilobyte (8,000 bits), where each bit is represented by the position of one single chlorine atom.
Dark Energy Measured with Record-Breaking Map of 1.2 Million Galaxies
Physicists and astronomers have announced results from the largest-ever, three-dimensional map of distant galaxies.
What Did Earth’s Ancient Magnetic Field Look Like?
New work suggests Earth’s ancient magnetic field was significantly different than the present day field, originating from several poles rather than the familiar two.

Science Facts

Stopping In Thin Air

by NASA Aerospace Technology Enterprise and

: Image Courtesy NASAexplores Imagine you're going very fast -- much faster than a race car. In fact, imagine you're going 100 or 200 times faster than a race car. When you reach your destination, you need to stop relatively quickly. How would you do it? It wouldn't take a rocket scientist to think of using the brakes. But, it might take a rocket scientist to skip the brakes, and use nothing but thin air to slow down.That's the idea behind aerocapture, a technology currently being researched by NASA scientists. While a lot of spaceflight research being performed now deals with better and faster ways of reaching destinations in space, aerocapture is part of a field of research looking at better ways of stopping once you get there.

Traditionally, putting a spacecraft into orbit around another planet or landing a probe has required that the craft carry extra fuel to help it stop once it arrived at its destination. Given the concerns of cost and mass involved in launching a spacecraft, having to carry extra fuel for braking could place some major limitations on proposed science research missions--limiting the amount of scientific equipment that could be carried on some flights and ruling some missions out entirely. Aerocapture is a braking method that requires no extra fuel, but instead involves the use of a planet's atmosphere to slow down a spacecraft. Use of this technique could reduce the typical mass of an interplanetary spacecraft by half or more, allowing for a craft that is smaller and cheaper, but also better equipped to conduct long-term science research at its destination.

NASA researchers are currently developing technologies required to make aerocapture in interplanetary flight a reality, and are considering use of the technique for possible missions to Mars, Neptune, and Saturn's moon Titan. When the research is completed, and if those missions, or others similar to them, are successful, then some of the biggest challenges in interplanetary flight could disappear--into thin air.

Gravity Is the Weakest!
The Weakest Force

Did you know that gravity is the weakest force in the universe? Well, it's true! There are four fundamental forces (that we know of) in our universe: Strong Nuclear, Electromagnetic, Weak Nuclear an ...
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The Big Bang Model

The Big Bang Model is a broadly accepted theory for the origin and evolution of our universe. It postulates that 12 to 14 billion years ago, the portion of the universe we can see today was only a few ...
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Collision of two gold nuclei at the RHIC accelerator. An attempt to produce quark-gluon plasma in the laboratory.
The Early Universe Soup

In the first few millionths of the second after the Big Bang, the universe looked very different than today. In fact the universe existed as a different form of matter altogether: the quark-gluon plas ...
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Science Quote

'Never regard study as a duty, but as the enviable opportunity to learn to know the liberating influence of beauty in the realm of the spirit for your own personal joy and to the profit of the community to which your later work belongs.'

Albert Einstein

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