Earth May Once Have Had Two MoonsEarth May Once Have Had Two Moons
<p>The prevailing theory on lunar formation is the giant impact theory which suggests the moon formed when a Mars-sized body slammed into the infant Earth. This threw a cloud of
<p>The prevailing theory on lunar formation is the giant impact theory which suggests the moon formed when a Mars-sized body slammed into the infant Earth. This threw a cloud of
<p>For the third day in a row, sunspot 1261 has unleashed a significant M-class solar flare. The latest blast at 0357 UT on August 4th registered M9.3 on the