Why Is Life Possible on Earth but Not on Other Planets ... Even if we discover a suitable planet, the challenge of traveling there is enormous. As Nobel prize-winning astrophysicist Michel ...

Why do astronomers look for signs of life on other planets based on how life is on Earth? Couldn’t there be totally different ...

We know from The Lord of the Rings that Tolkien crafted endless stars in his legendarium, but are there other planets too? Though extra-terrestrial life in Tolkien's universe has not been ...