Wrinkle ridges have been seen on the surface of the Moon for over a century. Studies of these interesting features began as early as 1885, with telescopic photographs, and continued beyond the Apollo era, with satellite and lander observations. Scientists thought they understood them, but the latest images from the Lunar Reconnaissance Orbital Camera (LROC) suggest we may not know the whole story. via universetoday, by Irene Antonenko
A striking new image of the Helix Nebula from ESO’s VISTA telescope (image top), at the Paranal Observatory in Chile. This picture, taken in infrared light, reveals strands of cold nebular gas that are invisible in images taken in visible light (image below), as well as bringing to light a rich background of stars and galaxies.