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A little interesting about space life.

Voyager 2 flew by Neptune back in 1989, and its observations revealed a number of active geysers, situated within the polar cap heated by the Sun. The geysers hurl out plumes to the impressive height of up to 8 kilometers. Triton has a relatively high density that indicates rocks account for approximately two-thirds of its mass, and ices (mostly water ice) compose the remaining one-third.



and here is another

It is true that even our most powerful telescopes aimed at the landing sites wouldn't see anything. However, not because the Moon landings didn't happen. It is only because of the optical limitations of telescopes themselves, because of their limited size and distance from the Moon.



and finally

The outer Solar System is more richly endowed with moons than the inner regions. The two enormous gas giant planets, Jupiter and Saturn, and the ice giant planets, Uranus and Neptune, have numerous moons of various sizes, shapes, and origins. As these enormous planets grew, during the early days of our Solar System, they were able to ensnare wandering objects with their mighty gravitational grips.

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Earth's Moon was thought to be The Moon--and the only moon--until Galileo Galilei took his primitive telescope up to the roof of his house in Padua in January 1610. Galileo aimed his telescope up to the clear starlit night sky above his home--one of the first to be used for astronomical purposes--and aimed it at the giant planet Jupiter. As a result, Galileo discovered the four large Jovian Galilean Moons, eventually named in his honor: Io, Europa, Ganymede, and Callisto.



Dozens of crewless spacecraft, including landers, rovers, and orbiters, have been dispatched to Mars by the Soviet Union, the United States, Europe, and India to observe the planet's climate, surface, and geology. Since the year 2000, cameras circling in orbit around Mars have sent back to Earth a treasure chest overflowing with revealing pictures of the "fire star." These wonderful images have displayed a Martian surface etched with small valleys and carved into slopes. These features are eerily similar in their shape to gullies carved by gushing water flowing on Earth. The Martian gullies are believed to be less than a few million years old--a tiny wink of the eye on geological time scales. In fact, some of the gullies even appear to be younger than that! These detections are enticing. This is because the observations hint to planetary scientists that great quantities of liquid water may still be lingering on Mars at present--and that this gushing water might be what carved out the gullies.



Icy moons and tumbling, gleaming moonlets dance around within the lovely and very famous rings of the gas-giant planet Saturn. A study released in November 2012 now suggests that most of the moons inhabiting our own Solar System were born from ancient, primordial Saturn-like ring systems that swirled around newborn planets circling the young Sun. According to this study, most of our Solar System's regular satellites--which are those moons that lovingly embrace their parent planets in approximately equatorial orbits--formed in this way. In contrast, the most popular theory explaining moon-formation, suggests that moons emerged simultaneously with their parent planets, as a direct consequence of planetary formation.