The tweet posed a hypothetical scenario where the second Mars settlement ... a fictional alien species from the Star Trek science-fiction universe, found by the first settlers.

A Star Trek-style life signs detector has successfully detected ancient microbial life in gypsum rocks similar to rocks on ...

These are the best space shows that aren't Star Trek. Stargate Universe was the Stargate ... and set in a near future where humans have colonized Mars and other parts of the solar system.