Earth’s air supply may reach nearly 400,000 miles into space — so far that the moon constantly flies through it
By Dave Mosher The boundaries between planet Earth, the moon, and deep space just got fuzzier. According to a new analysis of data recorded by a spacecraft more than 20 years ago, the outer fringes of our cozy planet’s atmosphere stretch far beyond what is typically imagined. In fact, Earth’s supply of hydrogen gas — … Read more