Tähdet ja avaruus (Finnish: Stars and space) is a Finnish science magazine which publishes recent developments, news and interviews in astronomy, space technology, cosmology and amateur astronomy.
It is the largest circulation astronomy magazine in northern Europe.
Tähdet ja avaruus is a member magazine of the Ursa Astronomical Association and it can also be subscribed without a membership.
The editor in chief of the magazine is Marko Pekkola, editor is Laura Koponen, staff science writers are Sakari Nummila and Anne Liljeström.
A group of free science journalists assist the magazine.