planets with life

Dusty worlds like the desert planet Arrakis in the Dune novels are probably quite common in the universe. Some of them, which have large amounts of dust in the atmosphere, are most

Gliese 887, one of the brightest red dwarfs seen from Earth, is harboring two large planets in the region of life.

There may be as many as 36 alien races living in our galaxy, so how many planets are equivalent to Earth?

Proxima is only 4.2 light-years from Earth, probably the home of another living planet.