Tonight, stargazers across the world will be treated to an event that only happens once every 19.6 years, on average. On 21 December, the winter …
How to see tonight's 'Christmas star', the great Jupiter Saturn conjunction
Get ready for 21 December 2020, when the "winter solstice great conjunction" of Jupiter and Saturn brings them closest in the night sky since 1623. Plus: Stargazing from home tips.