'Bullet-Shaped' UFO Spotted over Turkey, Europe - YouTube

A video clip of a bullet-shaped UFO was uploaded on Tuesday to YouTube, but viewers are left to interpret the filmed sighting, as the uploader did not post a description.

The clip's first frame hinted the location could be somewhere in the woods, or a remote area. The camera holder then looked up the sky, and the strange-looking flying object was seen. Aside from its unusual shape, the UFOs chemtrail also puzzled viewers.

The title of the clip is written in Turkish characters. But there is no absolutely certainty that the video was taken in Turkey.

However, a glance at the flying object would show a really unusual shape of an aircraft. The stream of vapor smoke it left on its trail made the sighting even more peculiar.

"But one look at the object is enough to say that it is unlike any airplane, jet or helicopter ever filmed before," Examiner.com reported.

Unfortunately, no one could get a closer look on the silver-colored subject. Zooming in would only break the image because it requires a cutting-edge camera for film viewing.

Without distinct wings, rotor blades, and flashing navigational lights, the "bullet video" shows nothing less than a legitimate unidentified flying object.

It seemed the aircraft was being propelled by some kind of an engine. As to the manner of flight operation, it seemed there is an entirely different method for the bullet UFO.

No explanation has come up on the bullet UFO just yet. Are the aliens on to some 'Earthling' things?

Spider Silk Skin can Stop a bullet

Dutch artist Jalila Essaïdi and cell biologist Abdoelwaheb El Ghalbzouri have blended spider silk with human skin to produce material that is three times stronger than kevlar.

In the first clip, the bioengineered skin cushions a bullet fired at half speed. But its resistance has its limits: when shot at a full speed of 329 m/s, the bullet pierces the material and travels through it. The same tests were also performed with piglet skin, human skin and human skin fused with regular silkworm silk, which were all penetrated by bullets of both speeds.

An international team worked together to create the new material. First, transgenic goats and silkworms equipped to produce spider-silk proteins spun out the raw material at the synthetic biology lab at Utah State University. The cocoons were then shipped to South Korea, where they were reeled into thread, before being woven into fabric in Germany. The modified silk was then wedged between bioengineered skin cells developed by biochemist Abdoelwaheb El Ghalbzouri at the Leiden University Medical Center in the Netherlands. After five weeks of incubation, the hybrid skin was ready for target practice.

In addition to exploring the material artistically, Essaïdi is also looking into practical uses, such as skin transplants. Spider silk is already being developed by other teams for high-tech applications, which range from artificial corneas to brain implants.

For more about spider silk spin-offs, check out our full-length feature: "Stretching spider silk to its high-tech limits". Or you might also like to find out about the science behind a lavish golden spider-silk cape, currently on display at the Victoria and Albert Museum in London.

Deadly Bullet-shaped rhabdoviruses

Gallery - Picture of the day - Image 1 - New Scientist

Some viruses are our friends, some are our deadly enemies. The bullet-shaped rhabdoviruses are both. On one plus side, there's vesicular stomatitis virus (VSV), the core of several promising new vaccines. Then there's rabies, among the deadliest viruses known.

It has never before been clear how these viruses' three structural proteins and RNA genome come together to form their bullet shape.

Now, using ultra-fine electron microscopy, Z. Hong Zhou at the University of California, Los Angeles, and colleagues have shown that the RNA and proteins wind together in a precise order, starting at the top of the bullet, to form two nested helices. Such structural insights may one day help us fight VSV's less benign cousins (Science, vol 327, p 689, DOI: 10.1126/science.1181766).

(Image: Z. Hong Zhou/Science)