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Spend two minutes on our Garage Sale page, save hundreds of dollars.
cato   jh       missile
That can't be right! A blow-through CATO of a high power motor. COSROCS is all about safety, and we have fire suppression equiptment ready to go in case of emergency, but sometimes rocket motors just don't perform as expected.    

COSROCS does a huge amount of educational work. We launch hundreds of rockets each year with Boy Scouts, schools, churches, Team America Rocketry Challenge, NASA Student Launch Initiative, and Civil Air Patrol.

We really love huge rockets. Click here to get a feel for the massive scale of this monster. Sometimes, you can feel the thunder in your chest.


TARC! CMCA video and photos.


Mark your calendars for Spring Fling!
June 27-28 at the Tripoli Colorado Hartsel launch site
Go to the Rocktivities page for directions.

Note: COSROCS will not be flying at Challenger MS this month;
Please join us in Hartsel instead!

green tThe shirts are now in stock and we should have them at each launch and meeting.

Printable membership application 48k PDF

COSROCS is a non-profit community service provider and is sensitive to people who prefer not to have their photos posted. We have thousands of photos and videos posted from twenty years of community service. If you object to having your likeness on the site, please contact the webmaster and we will remove it (them). You may also want to examine the photos posted in FreshInk (at left), which is the electronic version of the Gazette. We can remove any photos there, too.

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COSROCS promotes Science, Technology, Engineering and Math (STEM) education through fun and friendship, and is a community service non-profit organization.

in the news...

FAI World Championships with the Van Milligans
NBC TV5 coverage of the 2014 ULA/SCORE/COSROCS/NARAM launch
Ashley Van Milligan sets a high bar at NAR National championships
CMCA TARC team goes to the Big Show
CBS 4 TV News Denver article on Mathstronauts
Otero Junior College Summer STEM Camp

CMCA and 4-H teams head to national TARC finals
First TARC 4-H team in the state of Colorado
COSROCS Member Takes Third in Championship
CMCA Students Partner
with NASA

SG-1 Takes 5th at Finals!
Don't Push the Red Button...

NASA Student Launch Initiative.

COSROCS records




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