Aug 15, 2014 Uranus exhibits activity similar to the other gas giants. The planet Uranus is 50724 kilometers in diameter at the equator, meaning the widest part of the planet, although its equator is tilted almost 90 degrees past horizontal when compared to all other planets in the Solar…
Aug 14, 2014 Not all features on Mars are electrical scars. It is often said that to the man with a hammer, everything looks like a nail. Many times, Electric Universe advocates are accused of having too narrow an outlook, as if all that can be observed is the result…
Aug 13, 2014 Are colliding galaxies actually separating? Astronomer Halton Arp discovered several relationships between various galaxies, and between galaxies and quasars, that led him to speculate that redshift is not an indicator of recessional speed or of distance to remote celestial objects. Observations of those remote objects seem to…
Aug 11, 2014 Several previous Picture of the Day articles take issue with the idea that Mars once flowed with liquid water. Since Mars is now a freeze-dried, barren wasteland of rocks and dust, it is presumed that the supposed water features there evaporated over millions of years. When the…
Aug 8, 2014 Comets are not the only objects with tails. Since comets and their characteristics are in the news, it is good to remember that not all objects with tails are comets. Venus, for example, possesses a filamentary comet-like tail that stretches for millions of kilometers. Indeed, at its…
Aug 6, 2014 Rosetta is orbiting Comet 67P/Churyumov–Gerasimenko A little more than half way between Mars and Jupiter, at around 400 million kilometers from Earth, the Rosetta cometary probe completed its maneuvers and settled into orbit around 67P/C-G. Mission team members are analyzing images, in order to determine an appropriate…
Aug 05, 2014 The Dawn spacecraft will arrive at Ceres in August of 2015 Ceres is the largest asteroid in the Solar System. The most recent measurement from the Hubble Space Telescope puts it at approximately 975 kilometers in mean diameter. It is so large that it is roughly spherical,…
Aug 4, 2014 Plumes of water vapor from Enceladus are not caused by friction. Saturn’s moons are difficult explain when conventional ideas about the composition and age of the Solar System are considered. They vary in composition, orbital inclination, size, and mass. With 62 moons now identified, and 53 of…
Aug 1, 2014 The comet is currently 544 million kilometers from the Sun. Comet 67P/Churyumov–Gerasimenko (67P/C-G) is about one year away from perihelion, or its closest approach to the Sun. As seen in the image above, there is also a “waist” between the two halves of the comet that appears…
Jul 25, 2014 The deserts of the Southwest United States are full of anomalous geography. In a previous Picture of the Day, the giant sandstone tors of Monument Valley, Arizona were mentioned, in passing. Consensus geology considers monolithic structures to be millions of years old, and the result of erosion…
