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December is the month of the winter solstice, which a large part of the world associates with such celebrations as Nativity festivals.
Saturn and Jupiter shared a rare "great conjunction" on Dec. 21 that thrilled skywatchers around the world.
The 2019 Ursid meteor shower will peak the night of Dec. 21-22, with expected rates of about five to 10 meteors per hour.
According to the New Testament, the Star of Bethlehem led the three wise men to Jesus' birth. Here are a few theories about what the star really was.
There is one more meteor shower to consider before we close the book on 2020: the December Ursid meteor shower, which usually occurs during the overnight hours of Dec. 21-22.
NASA has shared some helpful tips for how to photograph the "great conjunction" of Jupiter and Saturn on Dec. 21, 2020.
Jupiter and Saturn will align in the night sky today (Dec. 21) in an event astronomers call the "great conjunction," and you can watch it online with a host of webcasts.
Google treated internet searchers around the world to a pair of animated doodles celebrating the "great conjunction" of Jupiter and Saturn and the solstice on Dec. 21.
We are now closing in on the long-awaited night of Dec. 21, when Jupiter and Saturn will engage in their "great conjunction."
Jupiter and Saturn will align in the night sky on Dec. 21 in an event astronomers call the "great conjunction" marking the planets' closest encounter in nearly 400 years.
Before the historic "great conjunction" of Jupiter and Saturn on Dec. 21, the planets will have a close encounter with the crescent moon on Wednesday and Thursday (Dec. 16-17).
Skywatchers in southern South America were treated to a total solar eclipse on Monday (Dec. 14), and a weather satellite captured stunning views of the event from space.
The only total solar eclipse of 2020 dazzled spectators in South America, and some lucked out even as overcast skies threatened to put a damper on an incredible celestial event.
In South America, the moon has slipped in front of a sliver of the sun's edge, marking the beginning of what will be the only total solar eclipse of 2020.
This year's only total solar eclipse will cross South America on Monday, and you can watch the spectacle unfold online thanks to a host of webcasts — no special glasses needed.