Christa McAuliffe Planetarium
Centennial High School
2525 Mountview Drive / Pueblo, Colorado

The Christa McAuliffe Planetarium is located at Centennial High School in Pueblo, Colorado. The Planetarium has been in existence since the school was opened in 1974 and has seen several major renovations and upgrades to its seating and technology. The most recent renovation in 2008 - 2009 has resulted in new, interactive seating; a state of the art Bowen sound system, Christie DS2 projection system, and programming. The Christa McAuliffe Planetarium is one of only a handful of high schools in the United States that has the Evans & Sutherland Digistar 3 programming and Digital Theater system.

The Christa McAuliffe Planetarium has seating for 60 including two handicapped-accessible seating areas. 
A comet ride and a look at Pluto

The Tuesday, February 11th public program will be “New Horizons, a virtual trip through the Solar System on the Hale-Bopp comet.  In addition to visiting the planets, this feature examines how comets came to be in the formation of the early Solar System.  Dave Furry will present “What’s up in the Sky” for late winter.  The feature will be followed with an exploration of the changes in thinking that resulted in Pluto’s change from a planet to a Kuyper Belt Object.

Shows will be at 7 and 8 PM.  There will be no late seating at either program. Adults are $5, students $2 and those under 5 years old are free of charge.  Payment by cash or check only, credit or ATM cards cannot be accepted. 

Book a Planetarium program
Public Schools in and outside of Pueblo can visit the Planetarium for a program of their choosing.  Community organizations, service groups and others with 10 or more persons are welcome as well. Click on the BOOK APPOINTMENT button below and follow the prompts.  
JANUARY 2020 Southern Colorado Skies

A monthly (December) guide to the brightest planets, as well as a few short astronomical articles, is available at (after opening the link, click on the green text SCS_January 2020 to open the file).

You may leave an email at or a telephone message at 719-549-7350. 

Book Appointment

Betelgeuse continues to puzzle astronomers!

The red supergiant
star in the constellation Orion, Betelgeuse, continues to dim causing astronomers to wonder what the big star is up to.  It has dropped in brightness from 7th brightest to 21st brightest in just 2 months.  Scientists speculate the drastic drop could be the result of natural cycles combining to dim the star, an explosion of dust from the star blocking its light, or an indication it could explode into a supernova very soon.  Data gathering continues and only time will tell which theory is correct.


Dark matter may be older than the Big Bang

Dark matter, which researchers believe make up about 80% of the universe's mass, is one of the most elusive mysteries in modern physics. What exactly it is and how it came to be is a mystery, but a new study now suggests that dark matter may have existed before the Big Bang. MORE: