Many insects and arachnids engage in same-sex sexual behaviors. But they’re not gay, say a pair of researchers from Israel and Switzerland. It's just a case of mistaken identity — and high sex drives.
Astronauts are usually pretty busy while they're off planet so there hasn't been a lot of time to, um, look into this stuff, but it's unclear whether humans can procreate in weightless conditions. Apparently, you can't just march into space like you own it and do whatever you want.