Related Program: Northland Morning Astro Bob's Backyard Astronomy: All About the Dog Star By Lisa Johnson • Jan 28, 2020 Related Program: Northland Morning ShareTweetEmail Credit Courtesy of Bob King It's Beargrease week, so of couse we asked Bob to talk about Sirius, the dog star on this week's show. Listen Listening... / 8:56 Tags: Astro Bob's Backyard AstronomyAmateur AstronomySiriusShareTweetEmailView the discussion thread. Related Content Astro Bob's Backyard Astronomy: Earth is in the "cosmic cross-hairs" By Lisa Johnson • Jan 14, 2020 NASA/JPL-Caltech You can worry about the planet Jupiter throwing "comets and asteroids toward Earth like a sniper," or you can worry about comets ("essentially asteroids that are heavy on the ice"). Or you can just kick back, appreciate the additional 27 minutes of daylight we've picked up since the solstice, and contemplate the "molecular and atomic filters that each block a certain range of wavelengths of light" and help us create such beautiful sunrise and sunset photographs. Astro Bob's Backyard Astronomy: shaking the beach towel of the galaxy By Lisa Johnson • Dec 31, 2019 J. Skowron / OGLE / Astronomical Observatory, University of Warsaw Betelgeuse will show up tonight, and unlike the similarly-named poltergeist, you don't even have to say its name three times. AstroBob will have some helpful tips for red-giant-spotting on his blog, and you can read about scientists' concerns that "Betelgeuse is acting strange" here. Astro Bob's Backyard Astronomy: when the moon hits your eye like a big pizza pie, time for skiing By Lisa Johnson • Dec 3, 2019 Robson Hatsukami Morgan/Unsplash Next week, a conjunction* of Venus and Saturn ... and on Friday the 13th, consider a moonlight ski and a peek at the Geminid meteor shower! You can read about more unearthly goings-on at Bob King's blog here.