The International Space Station has been busy this month releasing the largest-ever group of CubeSats — tiny shoebox-sized satellites that can take images of Earth, log environmental data and even tweet messages.

Late last night, crew members aboard the ISS released five more CubeSats operated by two San Francisco companies, a Peruvian university and the the country of Lithuania. They join Planet Labs‘ flock of 28 satellites that were already released this month.

NASA published a video of the release today:

The San Francisco satellites are owned by Nanosatisfi and Southern Stars. NanoSatisfi’s ArduSat-2 will expand the startup’s platform-for-hire, which allows anyone to conduct research from Earth’s orbit. Southern Stars’ SkyCube will allow Kickstarter backers to send tweets and take images.

The two Lithuanian CubeSats are the first satellites ever launched by Lithuania. The Peruvian satellite will make the data it collects available to anyone in the world…