| | December 9 2018's Brightest Comet | | | |
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| | | Composite image, showing the size of comet Wirtanen’s extended atmosphere, compared with the size of a full moon on our sky’s dome. The comet’s brightness is spread over this large area. That’s why it’s so tough to see. Image via Brian D. Ottum (@astropicsdaily on Instagram). | | | | | | Watch geckos race on water! | | Geckos are renowned for their acrobatic feats on land and in the air. Turns out they can also run on water. Watch video. A gecko racing across the water supported by paddling and surface tension. Image via Pauline Jennings/PolyPEDAL Lab, UC Berkeley | | | | | |
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| | | Tonight … young moon and Saturn | On Sunday and Monday evenings, the illuminated portion of the moon will be pointing toward Saturn. In the evenings to come, the moon will wax larger, while Saturn slips into the sunset glare. Read more. | | | | |
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