Flora at the terminator on Gliese 581c

The potentially earth-like extrasolar planet Gliese 581 c orbits very close to its red dwarf sun, completing an orbit in only 14 days. This planet experiences tidal forces about 400 times as strong as those that the Moon causes on the Earth, with the result that it may be tidally locked to the star, with one hemisphere always day and the other always night. The sunward side would be extremely hot and the dark side extremely cold, while the narrow terminator or "twilight zone" between them might have a moderate climate more suitable for life.

In this image, the the temperate surface at the terminator of Gliese 581 c is host to liquid water and a variety of living plants. Two smaller moons occupy the sky, though there's no evidence yet that this planet hosts any moons.