Saturn and Titan Resources. JPL's lucky peanuts are an unofficial tradition at big mission events. Full Moon Guide: October - November The rover will be delivered to the Moon's surface in late VIPER is the first resource-mapping mission on the surface of another celestial body.
Full Moon Guide: September - October Voyager 2 made its closest approach to Saturn on Aug. The mission revealed a planet so phenomenal scientists had to go back. Full Moon Guide: August - September For the first time, astronomers have uncovered evidence of water vapor in the atmosphere of Jupiter's moon Ganymede.
The next full Moon goes by many names including the Buck Moon. Full Moon Guide: July — August A technique for scanning Mars rocks for microscopic fossils is also being developed to hunt for microbes on Enceladus, Titan, and Europa.
Hubble Sees Changing Seasons on Saturn. Phobos orbits through a stream of charged atoms and molecules that flow off the atmosphere of Mars, new research shows. Most Popular. Are there telescopes that can see the flag and lunar rover on the Moon? Beginner How long could life on Earth survive if the Sun stopped shining? Beginner What is the difference between a "star" and a "sun"? Beginner How do you measure the distance between Earth and the Sun?
Intermediate Why do the planets orbit the sun? Beginner What direction do planets rotate? Beginner At what speed does the Earth move around the Sun? Beginner Can artificial gravity be created in space? Intermediate If gravity isn't a force, how does it accelerate objects? Advanced How do we know what other planets and stars, galaxies, etc. How long could life on Earth survive if the Sun stopped shining?
Beginner Are there telescopes that can see the flag and lunar rover on the Moon? Intermediate How do you measure the distance between Earth and the Sun? Beginner Why is the moon in a different place every night? Beginner How does the position of Moonrise and Moonset change? Intermediate Which planet is most similar to Earth? Plus, the 5 percent of Titan's atmosphere made of methane raised another question: It reacts quickly to form organics that would fall to the surface, so how is it replenished?
Those materials, present in the early solar system, could have built Titan as well. And, according to Miller's calculations, this type of organic material in comets, if it were at the core of Titan, could produce gases similar to the moon's atmosphere today. Thermal models of the moon's interior suggest a toasty environment that could replenish or even generate much of Titan's atmosphere.
Improve this question. Strikers Strikers 1, 2 2 gold badges 11 11 silver badges 15 15 bronze badges. Titan's atmosphere may be replenished by out-gassing from it's icy surface, crust and perhaps, methane lakes. That may partially explain Venus' atmosphere as well, though with Venus, the process is very different. Add a comment. Active Oldest Votes. Improve this answer. Jean-Marie Prival 1, 5 5 silver badges 25 25 bronze badges. The last two paragraphs. Wayfaring Stranger Wayfaring Stranger 4, 1 1 gold badge 13 13 silver badges 24 24 bronze badges.
Community Bot 1. Free Consulting Free Consulting 6 6 bronze badges. It has no magnetic field and is much more exposed to solar wind than other atmospheric worlds. Seriously, it's a really good question and I'd really like to know the answer for and I wish there would be more Venus studies instead of daydreaming about Mars.
Care to post that as question? Venus is kind of a planet non grata, maybe because it is most like Earth. It is an outlier in most theories. IAU should've defined Venus, not Pluto, to be not a planet. If you like to learn about what is not known about Venus, I recommend Dave Stevenson, here's non-informative lecture of his: youtube.
Quan Quan 59 1 1 silver badge 1 1 bronze badge. So while a commendable initiative, this answer does not show why Ganymede has no atmosphere, while Titan has one.
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