The existence of evidence for Earth’s past equatorial ring, shown by impact craters, raises questions about its loss. Modeling its effects on Earth's rotation presents challenges. However, current findings indicate minor impacts on day length, with significant stability in the Earth-Moon system over 10,000 years.

About 63 hours after its launch, Surveyor 1 landed on the Moon on June 2, 1966. The 2,200-pound (998 kilograms) craft touched down inside a 62-mile (100 kilometers) crater north of Flamsteed Crater in Oceanus Procellarum, or the Ocean of Storms. Surveyor 1 took more than 11,000 photos, and measured the Moon’s temperature and theContinue reading "June 2, 1966: Surveyor 1 lands on the Moon"

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Blue Moons are known for the folklore surrounding their appearance in the skies. But the real thing has less to do with its color and more with the timing of the year’s Full Moons. The next Blue Moon is May 20, 2027. It will be a seasonal Blue Moon; here’s what that is: There areContinue reading "What is a Blue Moon? When’s the next one?"

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