[Picture] Hoverflies Mating Midair

December 27, 2010

Hoverflies Mating Midair From Wikipedia, created by Flagstafffotos

Simply amazing shot of nature. At first I thought it is a fly on a mirror. But it is Hoverflies mating midair. Great gadget, great picture, and great talent.  Click here, to see clearer picture. This picture also got quite a few of awards. Check his site to see a lot more amazing picture.

This file was awarded third place in Picture of the Year 2006.
This is a featured picture on Wikimedia Commons and is considered one of the finest images.
This is a featured picture on the German language Wikipedia and is considered one of the finest images.
This is a featured picture on the English language Wikipedia  and is considered one of the finest images.
This is a featured picture on the Spanish language Wikipedia  and is considered one of the finest images.
This is a featured picture on the Japanese language Wikipedia  and is considered one of the finest images.
This is a featured picture on the Turkish language Wikipedia  and is considered one of the finest images.

Via: Wikipedia

Advertisements

Ballistic Invading Stars

December 26, 2010

NASA

The phenomenon is similar to that seen when a speeding boat pushes through water on a lake, the ‘bullet’ star travels through the dense gas and powerful stellar winds.

“Finding these stars is a complete surprise because we were not looking for them. When I first saw the images, I said ‘Wow. This is like a bullet speeding through the interstellar medium.’ Hubble’s sharp ‘eye’ reveals the structure and shape of these bow shocks.”

Depending on their distance from Earth, the ‘bullet-nosed’ could be 100 billion to a trillion miles wide (the equivalent of 17 to 170 solar system diameters).

Assuming their youthful phase lasts only a million years and they are moving at roughly 112,000 miles an hour, the stars have traveled about 160 light-years.

There are two possible ways this phenomenon happened. One way is if one star in a binary system exploded as a supernova and the partner got kicked out. Another scenario is a collision between two binary star systems.  One or more of these stars could have picked up energy from the interaction and escaped the cluster.

Source: NASA


%d bloggers like this: