astronomy

space

How many Stars and Planets does the Milky Way have?

Our Milky Way galaxy is estimated to contain between 100–400 billion stars. A detailed study observed over six years by the Probing Lensing Anomalies NETwork (PLANET) collaboration found that the Milky Way galaxy contains a minimum of 100 billion planets. According to the study there is one planet for

space

How many Earth’s can fit between the Sun and the Heliopause?

Space is big, really really big. Let’s do some math: Earth has a diameter at the Equator of 7,926 miles. If one astronomical unit (AU) is 92,955,807.3 miles, and the distance between the Sun and the Heliopause is about 123 AU, that’s 11,433,