‘Christmas Star’ Will Appear in the Sky for the First Time After 800 Years

This winter solstice brings us a one-in-lifetime chance to witness a rare astronomical phenomenon called ‘Christmas star’ or, more scientifically, ‘Great conjunction’. Why Is the Great Conjunction So Rare? It seems that 2020 has more surprises to give, and not all of them are unfortunate. After Halloween’s blue moon, there comes another celestial event that […]