When galaxies eat galaxy

Using gravitational lensing, Astronomers University of Utah (USA) found that the center of massive galaxies will ultimately become denser than normal galaxies.

"We found that over the past 6 billion years matter making massive elliptical galaxies, gaining a greater concentration in their centers. This is evidence that large galaxies collide with each other in order to create an even greater - says astronomer Adam Bolton, Lead author of the work.

An exclusive world with four suns

PH1 - a planet with four suns:

Participants’ astronomical project Planet Hunters together with astronomers from Yale was first discovered a planet that is in the system of 4 stars.

Amateur astronomers and researchers from several institutions in the U.S. and the UK for the first time discovered exoplanet, which glow in the sky as four different suns.

The solar wind has brought water to the moon

Equipment "Apollo" provided for researchers to analyze new samples of lunar soil.

Examining the samples of lunar soil by the University of Michigan found that the cause of the water on Earth's satellite has solar wind.

It turned out that the increased content of lunar rock hydroxyl ion OH-, which is formed when a material is a proton (H +) - hydrogen ion brought by the solar wind. Proton captures oxygen from the lunar soil, resulting in a more stable particle - hydroxyl ion. In the interaction with other protons recombine it in water H20,