Explanation: This colorful topographical map of the Moon is centered on the lunar farside, the side not seen from planet Earth. That view is available to the Lunar Reconnaissance Orbiter though, as the spacecraft’s wide angle camera images almost the entire lunar surface every month. Stereo overlap of the imaging has allowed the computation of [...]
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Category Archives: Astronomy
In Wolf’s Cave
Explanation: The mysterious blue reflection nebula found in catalogs as VdB 152 or Ced 201 really is very faint. It lies at the tip of the long dark nebula Barnard 175 in a dusty complex that has also been called Wolf’s Cave. The cosmic apparitions are nearly 1,400 light-years away along the northern Milky Way [...]
W5: Pillars of Star Formation
Image Credit & Copyright: Lori Allen, Xavier Koenig (Harvard-Smithsonian CfA) et al., JPL-Caltech, NASA Explanation: How do stars form? A study of star forming region W5 by the sun-orbiting Spitzer Space Telescope provides clear clues by recording that massive stars near the center of empty cavities are older than stars near the edges. A likely [...]