We're blasting off to the final frontier with our Space Contest! Create a step-by-step, video or photo Instructable that's related to space and you could win!

What types of entries are eligible for the Space Contest? Sci-fi, space, telescope mods, satellites, high altitude balloons, amateur radio and more!

Please note, this contest is only open to entries from US residents.

Ready to start? Click here!

Multiple entries are accepted, but each entrant can only win one prize. Contest is open to US residents only. Contest closes for entries at 11:59pm PDT, August 7.

The Celestron Space Challenge is closed.

Grand Prize


Grand Prize (1 winner)

NexStar 8SE Computerized Telescope from Celestron and an Instructables Prize Pack.

First Prize (3 winners)

Astromaster 70AZ Telescope from Celestron and an Instructables Prize Pack.

Runner-Up (10 winners)

SkyMaster 15x70 Binoculars from Celestron and an Instructables Prize Pack.

Write an Instructable

Create a new Instructable that fits the guidelines outlined in the contest description above. To be eligible, Instructables must be published between Jun 20, 2011 and Aug 7, 2011 (11:59pm PT).


Upon publishing your Instructable you'll see checkboxes for open contests. Select Celestron Space Challenge. If you have entries currently eligible for entry, it will also show up by clicking "Enter this Contest" on the right side of this page.


Entries are accepted by Instructables staff within one business day Monday - Friday. What matters is the submission time, not acceptance time.


A panel of judges made up of Instructables staff and respected members of the community rate the finalists. The averages of the ratings determine the winners.


When the winners are decided they will be notified and announced here on the contest page.