From :- Space.Com By :- By Anthony Wood published yesterday Edited by :- Amal Udawatta A full moon photographed rising over Kars in Türkiye. (Image credit: Photo by Huseyin Demirci/Anadolu via Getty Images Prepare for a spectacular sight, as the second full moon of May meets the red star Antares this weekend Some lucky southern hemisphere stargazers will catch an incredible sight this weekend, as the "Blue Moon" slips in front of the red star Antares in the heart of the constellation Scorpius, briefly hiding its light mere hours before the second full moon of the month reaches peak illumination. A Blue Moon is the name given to the second full moon in a calendar month — an event that occurs roughly once every 2.5 years thanks to a quirk related to the length of the Gregorian calendar and the moon's orbital period. It's also the name given to the third full moon in a season of four full...