Sirius Star Cluster the brightest star in the sky sirius was hiding a Sirius Star Cluster

Sirius Star Cluster the brightest star in the sky sirius was hiding a Sirius Star Cluster

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It is important to know at any age!

The elders collectively believed that the people could well get along without modernity. The moon people value simplicity over comfort, convenience and leisure. Their lifestyle was based on a deliberate balance of avoiding a pleasure world while maintaining self-sufficiency. The networks of elders who have the responsibility to take decisions are not rulers of any kind.

and here is another

The beautiful, banded, blue ice-giant planet, Neptune, is the furthest major planet from the Sun. It is also orbited by a very weird large moon that may not have been born a moon at all. The moon, Triton, is about 1,680 miles in diameter, and sports features that eerily resemble those found on the dwarf planet Pluto. Pluto is a denizen of the Kuiper Belt. The Kuiper Belt is a reservoir of comets and other icy bodies--some large, some small--that circle around our Sun beyond the orbit of Neptune, at a distance of about 30 to 55 Astronomical Units (AU) from our Star. One AU is equal to the average distance of Earth from the Sun--approximately 93,000,000 miles.

and finally

The exact composition of these bodies of liquid remained unknown until 2014, when the radar instrument aboard Cassini was first used to show that Ligeia Mare, the second largest sea on Titan, is richly endowed with methane. Ligeia Mare is similar in size to two of the Great Lakes on Earth combined--Lake Huron and Lake Michigan! The new study, published in the February 25, 2016 issue of the Journal of Geophysical Research: Planets, which used the radar instrument in a different mode, independently confirmed the 2014 result. "It's a marvelous feat of exploration that we're doing extraterrestrial oceanography on an alien moon," commented Dr. Steve Wall in an April 26, 2016 Jet Propulsion Laboratory (JPL) Press Release. Dr. Wall, who is of the JPL in Pasadena, California, is Cassini radar team deputy lead.

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Moons are natural satellites that orbit another body that, in turn, circles its parent-star. A moon is held in place by both its own gravity and the gravitational grip of its host planet. Some planets have moons; some do not. Several asteroids in our Solar System also are orbited by very small moons--and some dwarf planets, such as Pluto, also have moons. One of Pluto's five moons, Charon, is almost 50% the size of Pluto. For this reason, the two frozen worlds inhabiting our Solar System's remote twilight zone, are sometimes classified as a double-planet.

In addition to the Giant Impact theory, there are several other models that have been proposed to explain how our Moon was born. One alternative model to the Giant Impact scenario suggests that Earth's Moon was once a part of our planet that simply budded off when our Solar System was in its infancy--approximately 4.5 billion years ago. According to this model, the Pacific Ocean basin would be the most likely cradle for lunar birth. A second model proposes that our Moon was really born elsewhere in our Solar System and, like the duo of tiny potato-shaped Martian moons, was eventually snared by the gravitational tug of a major planet. A third theory postulates that both Earth and Moon were born at about the same time from the same protoplanetary accretion disk, composed of gas and dust, from which our Sun's family of planets, moons, and smaller objects ultimately emerged.

Saturn is probably the most beautiful planet in our Sun's lovely family, with its magnificent system of enchanting rings, gleaming icy moons, and myriads of tumbling moonlets that dance and somersault both within and outside of the rings. One of Saturn's moons is Titan, the second largest moon in our Solar System, after Ganymede of Jupiter. Shrouded in a dense orange mist, Titan is famous for its frozen clouds of methane, and hydrocarbon seas and lakes. Titan's thick, veiling atmosphere is composed of a wonderful icy soup of compounds very much like those thought to have been present in Earth's primordial atmosphere. Titan's thick atmosphere--which is much denser than Earth's atmosphere--contains mostly nitrogen, like that of our own planet. But Titan's atmosphere also contains significantly greater percentages of such so-called "smoggy" chemicals as methane and ethane. The smog on Titan is so extremely dense that it actually rains "gasoline-like" liquids down on the surface of this bizarre world. Indeed, some of the chemicals discovered in Titan's atmosphere might indicate that simple and primitive methane-based life (methanogens), might dwell on this truly weird moon.