Chang'e 4 lunar lander in January 2019, carried a 3 kg (6.6 lb) sealed "biosphere" with seeds and insect eggs to test whether plants and insects could hatch and grow together in synergy.[35] The experiment included seeds of potatoes, tomatoes, and Arabidopsis thaliana (a flowering plant), as well as silkworm eggs. These became the first plants grown on the Moon.