Astronomers have calculated the ancestors of the Sun

Two astronomers at the Geneva Observatory, and Georges Mathieu Gunel Maine, recently declare that they were able to build out what looked like "ancestors" of our sun. As you know, the birth of stars is in the depth of the gas-dust clouds, "metals" which are the remains of already dead and exploding stars that were ejected into interstellar space and the force of the explosion that ultimately form these same gas and dust clouds.

Astronomical unit has been changed

At the meeting in Beijing, the International Astronomical Union conference, present her scientists decided that would make a redefinition of the astronomical unit. One astronomical unit will continue to be equal to the distance from the Earth to the Sun, but at the same time, scientists now will be secure the monotonous exact evaluation. Now assumed the value of one astronomical unit is equal to 149597870700 meters.

Investigated such a supernova in 1604

Ray space telescope NASA Chandra, began to study the outstanding traces of an antique supernova explosion, which he observed by Io Gunn Kepler .

For the first time, a mention about this supernova are dated 1604. When the night sky is a new star in the place where previously there was none. This event recorded many of the astronomers of the time, including Johannes Kepler.