Astronomy Picture of the Day . Conjunction Haiku . ... Sister planet stands together with sister stars. ... After wandering about as far from the Sun on the sky as Venus can get, the brilliant evening star crossed paths with the Pleiades star cluster earlier this week. ... What's the closest active galaxy to planet Earth? ... Galactic or open star clusters are relatively young swarms of bright stars born together near the plane of our Milky Way Galaxy. ... Dad Quiets Omicron Ceti . ... March . ...