The Genetics of the Earth and Moon
Imagine that two very similar-looking neighbors undergo a genetic test. The exam shows that the pair’s genetic fingerprints are virtually identical. They feel a flash of shock and excitement. What does this mean? Could they be long-lost twins, separated in a hospital mixup? The Earth and Moon share a similar issue, one that poses a […]
Hero Planet, or Plebian?
Astronomy:Far from being romantic heroes, starless planets may be a dime a dozen.