Scientists use speed of stars to calculate mass of Milky Way. Weight of the Milky Way at 640 billion solar masses.
If correct, this suggests that Milky Way contains less dark matter than previously thought. A star from outside our galaxy found its way into the center of the galaxy. This was also determined by the movement of the stars. The appearance of our galaxy also holds surprises for researchers. The search for the coldest point in the universe - Why it is on Earth. The next full moon will be in the sky - read a list of all the dates of the year.