Will a nail grow back? After a nail separates from the nail bed for whatever reason, it will not reattach. Anew nail will have to grow back in its place. Nails grow back slowly. It takes about 6 months for a fingernail and up to 18 months for a toenail to grow back. ...
will protect the plants inside it from excessive lunar sunlight, radiation, and the vacuum of space while observing their photosynthesis, growth, and responses to stress,according to Space Lab. After about a week on the lunar surface, the astronauts will bring back the seedling samples for detail...