Launched in 1968, Zond 5 became the first spacecraft to circle the Moon and return safely to Earth, carrying turtles, wine flies, meal worms, plants, and bacteria that became the first living creatures to survive a circumlunar flight.

4660 Nereus

A small, Earth-approaching asteroid measuring just 330 meters across that completes its orbit every 1.8 years and has been considered as a potential target for both robotic and crewed missions due to its easy accessibility.

3 Juno

A large main-belt asteroid discovered in 1804, measuring 234 kilometers across and distinguished by its unusually reflective surface that makes it one of the brightest objects in the asteroid belt.