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| What's Up This Week - October 24 - October 30, 2005 |
Oct 24, 2005 - Greetings, fellow SkyWatchers... I'd once again like to express my thanks to the hundreds who took the time to write. This week we'll begin south as we have a look at the NGC 253. Mars isn't the only planet out there, but it's at its best! We'll have a look at planetary nebulae and discuss single stars - as well as try for a challenging comet and asteroid. So, head out under the stars...
Because here's what's up! (Full Story) |
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| Book Review: Year of the Comets |
| Oct 24, 2005 - Everyone has their own personal reason for taking up astronomy. Some want to make it a career. Others need to satisfy their curiosity. Then there are those who simply get captured by the seductive beauty of the stars. Jan DeBlieu is one of the later. In her book, Year of the Comets she shares her experiences after being entranced by the night skies and at the same time being challenged by her everyday life on Earth. (Full Story) |
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| Horsehead Nebula by Tom Davis. |
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| Podcast: Astrophotography with Tom Davis |
| Oct 22, 2005 - My guest today is an amateur astrophotographer named Tom Davis. Those of you who subscribe to the Universe Today newsletter should be familiar with his photographs, as I've featured several of them in the last few months. Tom is an amazingly skilled astrophotographer, and he's got some decent equipment. And I'm happy to inform you that the price for this kind of technology is more affordable than it's every been, so if you've ever wanted to get into this hobby, maybe you'll get inspired. Before you start listening, please take a moment to look at his website at: http://www.tvdavisastropics.com. (Full Story) |
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| Crustal magnetism readings across Mars. Image credit: NASA/JPL. Click to enlarge. |
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| Mars Once Had Plate Tectonics |
| Oct 21, 2005 - NASA scientists have found evidence that Mars once had plate tectonics reshaping its surface. Data from Mars Global Surveyor has been stitched together to create a planetary map of magnetism. This map shows striping, where two plates were once pushed apart by new molten lava coming up from under the surface. This new lava become magnetized in the direction of Mars magnetic field at the time. Since this magnetic field flipped several times through the planet's history, the stripes provide a record of when Mars' plates were active. (Full Story) |
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