Even though the covid times, the Picoballoon challenge in 2021 was planned on last Monday of June. As in previous year, I've started designing my very own picoballoon probe to participate in the challenge. The rules stayed the same, the probe has to weight below 20 g and has to report at least it's...

As in 2019 the Brno Observatory and Planetarium organised a Picoballoon Channelnge in 2020. It's a competition of high altitude ballon probes, the one that sends it's altitude as the last one wins. Each probe must weight under 20 g and share at leas an approximate altitude in the telemetry messa...

In 2019 Brno Observatory and Planetarium together with Slovak Organisation for Space Activities organised a competition of high altitude balloon probes. The rules were simple, build a probe that weights below 20 grams. It should be able to send it's own position. They will launch it on a small ballo...