Dark matter — the mysterious substance, haunting scientists for decades. Using the space telescope NASA the Hubble space telescope, astronomers were able to detect an unusual cluster of this mysterious and do not obey the standard laws of physics of matter that formed clots much smaller than it was predicted by astronomers. According to an article published on the portal nasa.govso the strange behavior discovered substances can indicate the presence in the Universe of the so-called “cold dark matter”. That could mean the opening of such substances to modern physics?
Discovered the smallest accumulations of dark matter in the Universe
Despite the fact that the very existence of mysterious dark matter has not yet been proven, scientists are finding more evidence about its invisible presence since the birth of the Universe. According to one recently put forward theories that at the time of formation of galaxies future clusters of stars and planets are embedded in clouds of dark matter, which consists of slow-moving or “cold” particles, forming a structure whose mass ranges from a few hundreds of masses of the milky Way galaxy to the mass of a small commercial aircraft.
Observations of the Hubble space telescope may afford new way to look at the nature of dark matter and its role in the Universe, after all, this unknown substance creates all the building material for future galaxies of our universe. Despite the fact that astronomers can’t see dark matter, it can be detected indirectly in the measurement of gravitational interaction between stars and galaxies. Small clumps of dark matter were called the “cold dark matter” due to the fact that the temperature of similar formations in theory, should decrease significantly with decreasing mass of space clot.
The hunt for dark objects in the Universe completely devoid of stars, it may seem very challenging, but NASA decided to use a method which they do not have to look for changes in gravity stars as signals about the presence of dark matter. For this it was decided to consider 8 powerful quasars, the light intensity of each was measured in the presence of oxygen and neon gas. It is known that the mixture gets distorted by the gravity of galaxies in the foreground to the Ground, acting like a powerful magnifying lens.
As a result of observation using a telescope “Hubble”, scientists have found that the effect of curvature, called gravitational lensing, produced four distorted images of each of the studied quasars. Astronomers compared the measurements with how could look the images of quasars without the influence of dark matter, finding that the distance to quasars was approximately equal to 10 billion light years away, while foreground galaxies are located at a distance of two billion years from the Earth.