Which planet may have helium rain in its interior, and what does this rain do? Hot Jupiters are heated gas giant planets that are very close to their stars, just a few million miles distant and orbiting their stellar hosts in just a few days. Why do astronomers believe that Triton is a captured moon? The short answer is simple: Jupiter doesn't have enough mass to fuse hydrogen into helium. rotation rate is not constant from one location to another. Why is Io more volcanically active than our moon? What would you see as you looked down on the rings? Uranus and Neptune contain relatively more rock and hydrogen compounds than Jupiter and Saturn. A massive planet exerts a tidal force on a moon that causes the moon to align itself such that its tidal bulges always point toward and away from the planet. Why Does Jupiter Have the Great Red Spot? Scientists also use the Earth-orbiting Hubble Space Telescopeand ground-based telescopes to regularly check in on Jupiter. How do orbital resonances with Jupiter affect the asteroid belt? There have been a few other fairly sudden mass extinctions, but none are as clearly tied to impacts as the dinosaur extinction. The expected lifetime of a massive star is too short to allow for the evolution of complex life, It has a different composition than Saturn, including a higher proportion of hydrogen compounds and rocks, T/F: Process of science: A prediction based on Newton's theory of gravity led to the discovery of Neptune. The close proximity to their stars and high surface-atmosphere temperatures resulted in the moniker "hot Jupiters". earth-sized hurricane. comets with extremely elliptical orbits, like comets Hyakutake and Hale-Bopp, Distinguishing characteristics of meteors, -visible in the sky as a bright streak of light for only a few seconds, Distinguishing characteristics of Asteroids, -compositions similar to that of the terrestrial planets, T/F: Falling stars and shooting stars are simply other names for meteors, about a trillion comets are thought to be located far, far beyond Pluto in the, The bright spherical part of a comet observed when it is lose to the sun is the, A comet's ______ stretches directly away from the sun, a comet's _____ is the frozen portion of a comet, Particles ejected from a comet can cause a _____on Earth, The _____extends from about beyond the orbit of Neptune to about twice the distance of Neptune from the Sun. They typically have temperatures of a thousand to several thousand … Then half a dozen more. They have low albedos Sort the Jovian planets by whether or not they have … All gas giants form far from their star but then some migrate inwards. Hot Jupiters are a class of gas giant exoplanets that are inferred to be physically similar to Jupiter but that have very short orbital periods (P < 10 days). According to our theory of solar system formation, why did Uranus and Neptune end up to be much less massive than Jupiter and Saturn? the amount and frequency of the star's motion are both higher. Which is closest to the average distance between asteroids in the asteroid belt? One is the Sun, obviously. Which of the following properties can inferred from the star's orbital period? Hot Jupiters are gas giant planets, much like Saturn or Jupiter, that orbit extraordinarily close to their stars, at about one-tenth of the distance from Mercury to the sun. Hot Jupiters migrate in from the outer regions of the solar system, taking out any small planets in their way. Just as astronomers have sought to explain how a gas giant becomes a Hot Jupiter, others been trying to learn why our Jupiter didn’t become one … When do comets generally begin to form a tail? size and shape of Jupiter's magnetosphere is determined by the interaction between the planet's magnetic field and the solar wind. In that region of the solar system, Jupiter's resonances pump up the eccentricities of objects, making them to collide at high speed. That's the reason we still don't have a hot jupiter Jupiter’s four largest moons (the Galilean Satellites) are Io, Europa, Ganymede and Callisto. The reason why there isn’t one in our Solar System is down to its formation. Why is the radiation so intense in the region that traces Io's orbit around Jupiter (the Io torus)? yes, by measuring both the star's orbital period and its change in velocity over the orbit, The reason that most extrasolar planets are found close to their parent stars is, the amount and frequency of the star's motion are both higher, Based on what we know about our solar system, the discovery of hot Jupiter's came as a surprise to scientists because these planets are, Only supports sudden cause of demise of the dinosaurs, Consistent with gradual cause of demise of the dinosaurs, The change in fossils at the KT sediment layer suggests that in addition to the dinos ______also went extinct, abut 3/4s of all species living at the time. Pioneer 10 was the first spacecraft to fly past Jupiter. severity and quantity of craters depends more on crust renewal than location. Which of the following would be true in that case? The two Jovian planets that contain the highest portions of hydrogen compounds are. Searching for Earth-like planets in alien solar systems with "hot Jupiter"-type worlds may be fruitless, a new study suggests. According to current science, which of the following statements must be true? This keeps them from lumping together and forming a planet In fact, it tends to make the asteroids break apart when they collide, Halley's comet is name after the English scientist Edmund Halley because he, calculated its orbit predicted that it would return in 1758. Which of the following best summarizes current understanding of other extinctions in Earth's past history? it would have only one tail instead of two, When we see a meteor shower, it means that, Pluto orbits the Sun exactly two times for every three Neptune orbits. Jupiter towards Sun giants form far from their star but then some migrate inwards Jupiters in... 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