(Worthy News) – Visible supermoons—full moons that appear when the moon is at its closest orbital point to Earth—aren’t very rare. Having three in a row certainly is.
And that’s exactly what astronomy fans are being treated to this winter.
The first supermoon appeared when the moon swung by Earth 26,500 km (approximately 16,500 miles) closer than usual on Dec. 3. It will reappear as a visible supermoon on New Year’s Day 2018 and again on Jan. 31. [ Source: Quartz (Read More…) ]