I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. At least 50 billion planets in our own Milky Way galaxy are likely to be free-floaters --- unbound to any star system ...
On a clear night from Earth we can sometimes see the five planets which are closest to ... Our Sun is just one of many billions of stars in our galaxy, which is called the Milky Way.
Our galaxy could be littered with warm, watery planets like Earth. That's the conclusion of researchers at Penn State University, who used data from NASA's Kepler telescope to estimate the number ...
You may need binoculars or a telescope for this one. It includes the three furthest planets in our solar system. There will be six planets visible this time around, including Venus, Mars, Jupiter ...
That massively increases the chances of life existing elsewhere in the galaxy ... deep inside a planet can warm water enough to keep it liquid (as we see in Antarctica and the Canadian Arctic).