Full Moon rising with grass in the foreground

Drying Grass Moon

Sept. 1, 2020

Catch the Full Moon tonight when you head outdoors for the 8 o'clock howl. CU Boulder occupies Indigenous land belonging to the Arapaho, Cheyenne, and Ute peoples. The Arapaho and Cheyenne called the Full Moon in September the Drying Grass Moon. Leave a comment on our social media channels with...

Still image of the radiant point for the Perseid Meteor shower

Perseid Meteor Shower

Aug. 11, 2020

The Perseid meteor shower peaks tonight! The last quarter Moon will brighten up the sky, but grab a blanket, stretch out on the lawn and enjoy the show. You’ll find the radiant of the shower in the constellation Perseus which is under Cassiopeia in the northeastern sky. The meteors will...

In a clean room at NASA's Jet Propulsion Laboratory in Southern California, engineers observed the first driving test for NASA's Mars 2020 rover on Dec. 17, 2019. Image Credit: NASA/JPL-Caltech

Mars 2020 - Godspeed Perseverance!

July 28, 2020

We are beyond EXCITED for NASA’s Mars 2020 Perseverance Rover launch ! The 2-hour launch window starts Thursday 7/30 at 5:50am MDT with a launch opportunity every five minutes! This amazing rover (think Curiosity rover from 2012 on steroids) will collect and store rock/soil samples for future sample return in...

Photo of the comet against a dark blue sky taken by Fiske Planetarium staff just outside Teton National Park, WY on July 18th

Farewell to Comet NEOWISE

July 23, 2020

As Comet NEOWISE gets further from the Sun and becomes harder to see in the Colorado sky, we bode a farewell to the much beloved comet that brightened our summer. It's technically closest to the Earth today (64 million miles), but dimming quickly. The next chance to catch a glimpse...

Mary Eiberger-Salas took this amazing photo from South Boulder with her iPhone before dawn on July 9th.

A must see comet!

July 15, 2020

There’s a must see comet in the sky this summer! In fact, the brightest comet in the Northern Hemisphere since Hale-Bopp in 1997. Last week, Comet NEOWISE dazzled us before dawn. Now it has transitioned to an evening object. Take a stroll after sunset and look to the NorthWest under...

Graphic from SkySafari app of the western sky from Boulder and the sun setting on the solstice

Happy Summer Solstice

June 20, 2020

Happy Summer Solstice, everyone! Our Sun reaches its northernmost declination in Earth's sky today and those of us in the Northern Hemisphere enjoy the longest day of the year. Step outside after dinner and take note of how far north of due west the Sun sets.

A photo of the Ring Nebula M57 from Hubble Space Telescope

Photon Mondays - A ring, a rainbow, and a lyre!

June 1, 2020

A ring, a rainbow, and a lyre are in the sky tonight! Spot the stunning Ring Nebula (M57) near Vega in the constellation Lyra. By the time the light from this nebula reaches your eyes it has traveled approx. 2,000 years. Since the nebula is tilted face on towards us,...

Milky Way from Echo Lake photo by tyler.gaston_photography

Sunday Masterpieces - The Milky Way

May 31, 2020

Got an astro photo you'd like to share? We'd love to feature it! This week's Fiske Sunday Masterpiece is by @tyler.gaston_photography , taken up at Echo Lake Park back in September. He used a Canon 1Dx Mark II, 16-35mm lens, and an iOptron Skytracker Pro with an 83 second exposure...

Photo of Scott Kelly's book Endurance at the entrance to Macky

Saturday Astro Reads - 340 Days on the ISS

May 30, 2020

First and foremost, CONGRATULATIONS and GODSPEED to Doug Hurley, Bob Behnken, SpaceX, and NASA for the successful Demo-2 launch today! We -might- still be a bit emotional over here. To continue with our theme lately, we’re featuring retired astronaut Scott Kelly's New York Times bestselling book Endurance: A Year in...

Blade Runner 2049 poster with main characters from the film

Friday Flicks - Blade Runner 2049

May 29, 2020

We’re feeling especially futuristic this week with another SpaceX Crew Dragon launch window scheduled for tomorrow at 1:22pm MDT — So, we wanted to feature Blade Runner 2049 as today’s Friday Flick! Starring Ryan Gosling as a new Blade Runner named K, he unearths an old and dangerous secret that...