幸运飞行艇官网开奖查询记录 168飞艇官网开奖结果记录直播 168幸运飞行艇开奖查询结果 -Scientists Discover New Evidence That a Magma Ocean Once Covered the Moon
The Moon is our planet's loyal companion, orbiting Earth every 27 days. Although over 200,000 miles from Earth, it is our closest celestial neighbor. It clocks in at one-quarter Earth's size, and its history is deeply entwined with its larger companion. Scientists believe the Moon was created when a protoplanet impacted the early Earth, breaking off a large chunk of matter, and eventually formed a new body.