Tag Archives: moon

Scientists have discovered an ocean on Saturn’s moon

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A scientific team from the Southwestern Research Institute in Texas have reported that there is a liquid ocean under the ice of Saturn’s moon Mimas. Previously, scientists believed that the satellite consists entirely of frozen water.

The Cassini space probe in the last days of its work recorded fluctuations in the rotation of Mimas. Usually, these phenomena indicate the geological activity of the body, which is able to maintain the internal ocean in a liquid state.

Ice moon geophysicist and lead author of the study, Dr. Alyssa Rhodes, said the surface of the moon does not betray the presence of an ocean underneath. She says it could be classified as a new type of ocean world.

In the solar system, there are bodies where the oceans are hidden under ice and rocks, for example, on the satellites Titan, Europa and Enceladus, as well as the planetoid Pluto. The Earth must be within a narrow range of distance from the Sun in order to keep the oceans liquid. However, the listed objects are in a wider range of distances.

Previously, scientists believed that Mimas was entirely made of ice, as craters on its surface indicated this. Enceladus and Europa are devoid of such depressions, they have cracks and other evidence of geological activity. The observation broadens the definition of potentially habitable worlds within the solar system and beyond, Rhodes notes.

The scientists concluded that tidal heating in the interior of Mimas must be high enough to keep the liquid from freezing, but still leave a sizable shell of ice that spans between 22.5 and 32.1 km.

Rhoden says the results of the study show the presence of an ocean on Saturn’s moon, but it is still difficult for scientists to reconcile the orbital and geological characteristics of Mimas with current understanding of its thermal and orbital evolution.

The researcher explains that this discovery will help to better understand the nature of the rings of Saturn and its satellites, as well as in the search for potentially habitable sea satellites, such as Uranus. Scientists promise to continue research on Mimas.

Sources:

https://novosti-kosmonavtiki.ru/news/75953/

https://www.wibw.com/2022/01/26/saturns-death-star-moon-may-have-hidden-ocean-scientists-discover/

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More than moon power!

Reading Time: 2 minutesSolar panels have been around for a long time. Solar energy theory has been around since the 1800’s but the one of the first silicon based panels came out in the 1940’s, that was invented by Russell Ohl back in 1941. However it has a less than 1% efficiency.

This brings us to the present, we have tried so many different ways and configurations to get energy from the sun and to convert it into usable work. The main problem with solar panels is heat. Ironically the brighter the sun the more energy you get, however, the brighter the sun the hotter the panels get and this leads to a higher ohm resistance in the panel itself which means a reduced efficiency.

Enter the British company RawLemon. They have invented an orb that works similar to a Fresnel Lens. This clear water filled orb is able to concentrate the sun, with the help of a solar tracking device, and then create useful work from the concentrated solar rays. This orb is so good at concentrating light that it can even generate electricity from moonlight!

RawLemon sucking up moonlight, from IndieGoGo

RawLemon was able to make some smaller versions of the devise and they collected over 150% of their crowdfunding goal raising a total of $233,062 IndieGoGo. Unfortunately their website is getting “an upgrade” so you can’t purchase anything from them at the moment.

Rawlemon in the daytime.

Now let us move on to something that has a bit of controversy behind it. The V3Solar Cone.

The company claims that with this special design they are able to be at least 20 times more efficient than a traditional flat solar panel. As I mentioned before the hotter a panel gets the more inefficient the panel becomes. V3 gets around this because the solar panel is always spinning at the optimal speed. This allows, in theory, the panels to be exposed to sunlight just long enough for proper energy exposure but also the ability to cool down as it spins away from the sun as a “fresh” solar panel is brought around back to the direct sunlight.

[youtube https://www.youtube.com/watch?v=YQYXvNC5tpk]

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