Check out today's
Astronomy Picture of the Day. It shows an artist's vision of what the newly discovered 'earth-like planet' Gliese 581c might look like, complete with very large and dim red dwarf sun looming low on the horizon. In addition to being a larger star than our sun, this star would look huge to planet dwellers due to the very close orbital distance (closer than Mercury's orbit around our sun). None of us will ever experience a truly alien landscape such as this, but it is interesting to speculate about what it would be like.