Yesterday NASA announced they found an “Earth-like” planet, twice the size of our own (assuming you are from Earth), using the Kepler Space Telescope. I think you’ll find it’s all in the Bible. Here’s a quote from Genesis 1:1:
"In the beginning God created the heavens and the two Earths. Since the planets were 600 light-years apart, He could only keep an eye on one of them. He loved both Earths equally, but He had to make a choice. "This would make a good movie", God said to Himself, as His thoughts wandered off. To make a long story short, God chose the largest of the two, obviously."