GSBC 2020 Announced! GSBC 2020 Starts April 3. Closing date of the window will depend on what happens with the coronovirus. At minimum, window is extended until August 1, 2020. Please stay safe and abide by local recommendations.
We're from Toronto-a group of Space Enthusiasts working on Space Maker projects
launch a balloon and take pictures and videos of the Earth
to take part in the challenge