Entries from 2019-09-10 to 1 day
Astronauts make concrete in space for the first time https://edition-m.cnn.com/2019/09/10/world/astronaut-cement-space-station-scn-trnd/index.html?r=https%3A%2F%2Fedition.cnn.com%2F Chemical reactions without gravity are interesting in som…