2008 July 4

2008 July 7

2008 August 19

Explanation: Ten thousand years ago, before the dawn of recorded human history, a new light must suddenly have appeared in the night sky and faded after a few weeks. Today we know this light was an exploding star and record the colorful expanding cloud as the Veil Nebula. Pictured above is the west end of the Veil Nebula known technically as NGC 6960 but less formally as the Witch's Broom Nebula. The expanding debris cloud gains its colors by sweeping up and exciting existing nearby gas. The supernova remnant lies about 1400 light-years away towards the constellation of Cygnus. This Witch's Broom actually spans over three times the angular size of the full Moon. The bright star 52 Cygnus is visible with the unaided eye from a dark location but unrelated to the ancient supernova.

Explanation: Is there any place in the world you could see a real sight like this? Yes. Pictured above is single exposure image spectacular near, far, and in between. Diving into the Earth far in the distance is part of the central band of our Milky Way Galaxy, taken with a long duration exposure. Much closer, the planet Jupiter is visible as the bright point just to band's left. Closer still are picturesque buttes and mesas of the Canyonlands National Park in Utah, USA, lit by a crescent moon. In the foreground is a cave housing a stone circle of unknown origin named False Kiva. The cave was briefly lit by flashlight during the long exposure. Astrophotographer Wally Pacholka reports that getting to the cave to take this image was no easy trek. Also, mountain lions were a concern while waiting alone in the dark for just the right exposure.

Explanation: Can you spot the Solar System's four rocky planets? In the above image taken on September 20, all of them were visible in a single glance, but some of them may be different than you think. Pictured above, the brightest and highest object in the sky is the planet Venus. The object lowest in the sky is the planet Mars, while the object furthest to the left is the planet Mercury. The last remaining point of light is . . . the bright star Spica, which leaves the question -- where is the fourth rocky planet? That would be Earth, specifically part of Australia, visible across the entire bottom of the image.