Ursa Major, which has been cutting its teeth developing solid rocket motors and liquid rocket engines, has received a contract from an undisclosed ...

We may earn commission if you buy from a link. Why Trust Us? A study out of Japan showed how targeting genes can regrow teeth in animals. Now, the team has turned to a human clinical trial.

Space exploration should be for all countries ... or human material – though hair and teeth are okay). The company suggested meaningful items like an heirloom ring, a family photo, or cufflinks.