What are some skywatching highlights in September 2021? Mercury provides a challenging target to spot in the fading light after sunset at the beginning of the month. Enjoy spotting two "fast" stars all month long: speedy Arcturus and fast-spinning Altair. Additional information about topics covered in this episode of What's Up, along with still images from the video, and the video transcript, are available at https://solarsystem.nasa.gov/whats-up-skywatching-tips-from-nasa. | NASA's Kennedy Spac

41K views · 498 reactions |  The skies are the gift that keeps on giving this December. Try to spot a recently discovered comet when it’s closest to Earth. Also experience an end-of-year treat as the Geminid meteor shower peaks on Dec. 13-14. More skywatching tips: go.nasa.gov/3zLnOgh | NASA Jet Propulsion Laboratory | Facebook