Astronomy Now 2019 view the international space station at its best from the Astronomy 2019 Now

Astronomy Now 2019 view the international space station at its best from the Astronomy 2019 Now
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Astronomy Now 2019

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Christian folklore claims the Man in the Moon is Cain, the eternal Wanderer, doomed forever to circle the Earth. In addition, there is a Talmudic tradition that says it is the face of Jacob etched out on the gleaming lunar disk.

Titan has three large seas. However, the seas of Titan are not filled with water, but are filled instead with swirling liquid hydrocarbons. All three of Titan's exotic seas are close to its north pole, and they are surrounded by many smaller hydrocarbon-filled lakes in the northern hemisphere.

The astronomers observed this effect in the upper layer of the lunar crust, termed the megaregolith. This layer is heavily pockmarked by relatively small craters, measuring only 30 kilometers or less in diameter. In contrast, the deeper layers of lunar crust, that are scarred by larger craters, appear not to have been as badly battered, and are, therefore, less porous and fractured.

But what truly makes Enceladus so remarkable is that its habitable zone can be observed with relative ease by astronomers. Dr. Porco told the press on March 27, 2012 that "It's erupting out into space where we can sample it. It sounds crazy but it could be snowing microbes on the surface of this little world. In the end, it's the most promising place I know of for an astrobiology search. We don't even need to go scratching around on the surface. We can fly through the plume and sample it. Or we can land on the surface, look up and stick our tongues out. And voila... we have what we came for."

"The whole process of generating porous space within planetary crusts is critically important in understanding how water gets into the subsurface. On Earth, we believe that life may have evolved somewhat in the subsurface, and this is a primary mechanism to create subsurface pockets and void spaces, and really drives a lot of the rates at which these processes happen. The Moon is a really ideal place to study this," Dr. Soderblom explained in the MIT Press Release.

The Kuiper Belt is situated beyond the orbit of the beautiful, blue, and banded giant gaseous planet, Neptune--the outermost of the eight major planets of our Sun's family. Pluto is a relatively large inhabitant of this region, and it was--initially--classified as the ninth major planet from our Sun after its discovery by the American astronomer Clyde Tombaugh (1906-1997) in 1930. However, the eventual realization among astronomers that the frozen little "oddball" that is Pluto, is really only one of numerous other icy bodies inhabiting the Kuiper Belt, forced the IAU to formally define the term "planet" in 2006--and poor, pitiful Pluto lost its lofty designation of "major planet" only to be re-classified as a mere minor one--a demoted dwarf planet.

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