Which is capable of housing astronauts while they conduct research?

a rover

a satellite

a space station

a space observatory

a space station

Explanation:

I took the test

A Space Station

Explanation:

A space station is also a satellite but bigger in size and facilities which makes it possible for the astronauts to live inside it and conduct research. The rover, satellites, and space observatory neither have room for the astronauts nor they are designed for that purpose. International Space Station is an example of Space Station.