| 单词 | terrestrial planet |
| 例句 | These are the terrestrial planets, our family of worlds, the planets more or less like the Earth. Cosmos 1980-01-01T00:00:00Z Between the orbits of Mars and Jupiter are countless asteroids, tiny terrestrial planets. Cosmos 1980-01-01T00:00:00Z "When planets initially form, particularly for rocky terrestrial planets, they go through a magma ocean stage as they're cooling down," said Boley. Study sheds new light on strange lava worlds 2023-09-27T04:00:00Z Astronomers believe this is how terrestrial planets such as Earth and Mars were created. How baby planets are made: Planetary precursors revealed in stunning new space image 2023-07-25T04:00:00Z This will place all the terrestrial planets together in the same area of the sky. Celestial treats to watch for from the Seattle area in 2023 2022-12-21T05:00:00Z Among the terrestrial planets, Earth and Venus have experienced the most geological activity over their histories, although some of the moons in the outer solar system are also surprisingly active. Astronomy 2016-10-13T00:00:00Z “One of the things that excites me is trying to peer into atmospheres of terrestrial planets,” Mullally says, “We really don’t know what we’re going to find when we look there.” Behold, Some Hidden Gems from JWST’s First Images 2022-07-21T04:00:00Z "So lava worlds can give us some insight into what may have happened in the evolution of nearly any terrestrial planet." Study sheds new light on strange lava worlds 2023-09-27T04:00:00Z The gas giants are the largest planets, followed by the ice giants, and then the terrestrial planets. Physical Geology 2015-01-01T00:00:00Z Hence, for gas planets like Jupiter, the dominant theory as to how they first originate is known as "core accretion," a process that is similar to how terrestrial planets like Earth form. Hubble discovers a Jupiter-like planet forming in a very strange way 2022-04-04T04:00:00Z In contrast, the larger terrestrial planets—Earth, Venus, and Mars—are more active and interesting worlds. Astronomy 2016-10-13T00:00:00Z Scientists know that such big planets are likely the first ones to form within a star system; terrestrial planets, like Earth, form later. Scientists believe they've discovered a planet that orbits three stars 2021-10-05T04:00:00Z Much of a terrestrial planet’s long-term climatic stability comes down to this carbon-cycling process. Is NASA about to Lift the ‘Venus Curse?’ 2021-06-02T04:00:00Z One of the terrestrial planets is thought to have been involved in collisions that resulted in the permanent loss of a substantial amount of its mantle. Physical Geology 2015-01-01T00:00:00Z Billions of years ago when the solar system formed, scientists believe that Mars and Earth were similar: watery, terrestrial planets with atmospheres. How to Imagine an Unfamiliar Place 2021-04-20T04:00:00Z Ganymede is a differentiated world, like the terrestrial planets. Astronomy 2016-10-13T00:00:00Z They also calculate that 20 percent of long-period comets become sungrazers, meaning comets that fly very close to the Sun and are whipped back through the terrestrial planets. Why some scientists think a comet, not an asteroid, caused the dinosaurs to go extinct 2021-02-17T05:00:00Z The discovery of a single free-floating terrestrial planet demonstrates that such objects do, in fact, exist, whereas before they were only theorized. Rogue Rocky Planet Found Adrift in the Milky Way 2020-10-19T04:00:00Z Large stars make elements such as silicon, iron, and magnesium, which are important in forming terrestrial planets. Physical Geology 2015-01-01T00:00:00Z “At some point, you’re left with not being able to explain it. Except we do know of a strange way of making phosphine on terrestrial planets — and that is life.” Discovery of noxious gas on Venus could be a sign of life 2020-09-14T04:00:00Z List at least three major differences between Pluto and the terrestrial planets. Astronomy 2016-10-13T00:00:00Z There, a gravitational dance with the terrestrial planets probably nudged its orbit inside Venus over millions of years. First asteroid found within Venus’s orbit could be a clue to the missing ‘mantle’ asteroids 2020-07-01T04:00:00Z What happens to a terrestrial planet's oceans when the planet heats up? Pebbles, Oceans and Wasp Clocks 2020-02-16T05:00:00Z Do you think there were terrestrial planets in this system? Physical Geology 2015-01-01T00:00:00Z Such interior bodies of molten rock are fundamental for understanding the evolution of terrestrial planets. NASA’s Next Low-Cost Planetary Science Missions Will Visit Venus or the Outer Solar System 2020-02-14T05:00:00Z However, as external influences declined, all the terrestrial planets as well as the moons of the outer planets began to follow their own evolutionary courses. Astronomy 2016-10-13T00:00:00Z Arrokoth is one of the thousands of small icy bodies inhabiting the Kuiper Belt, the solar system’s vast “third zone” beyond the inner terrestrial planets and the outer gas giant planets. Oddly shaped celestial body Arrokoth sheds light on planet formation 2020-02-13T05:00:00Z We ran supercomputer models of the climate on slowly rotating terrestrial planets. One Decade, a Lot of Writing 2020-01-01T05:00:00Z In our solar system, planets a similar distance from the Sun are terrestrial planets. Physical Geology 2015-01-01T00:00:00Z It is interesting when you think about it that we are the only terrestrial planet with a big moon. Do we owe our existence to the Moon? 2019-10-13T04:00:00Z The mountains on the terrestrial planets owe their origins to different processes. Astronomy 2016-10-13T00:00:00Z It’s less massive than any of the terrestrial planets, and seven moons in the Solar System. Pluto Redux 2019-07-05T04:00:00Z "If so, it would provide a unique look into the solar system's distant past, when the kind of high-speed protoplanet encounters that created Earth and the other terrestrial planets were common." NASA set to visit mysterious metal dead planet 2019-06-13T04:00:00Z Why can we not say for certain that Kepler-452b’s distance from its star means it is a terrestrial planet? Physical Geology 2015-01-01T00:00:00Z He adds there is great debate over whether this epochal event in solar system history occurred as a single large spike or, instead, Earth and the other terrestrial planets experienced a slower, more gradual battering. Comet-Blasted Star May Be a Rerun of the Solar System's Birth 2019-02-04T05:00:00Z Each of the terrestrial planets must have originally had similar atmospheres, but Mercury was too small and too hot to retain its gas. Astronomy 2016-10-13T00:00:00Z Kepler 1625 b’s moon, by contrast, would be about 10 times as massive as all the terrestrial planets and the hundreds of moons in our solar system combined. Astronomers Tiptoe Closer to Confirming First Exomoon 2018-10-03T04:00:00Z By the end of that era, about 100 million years after the birth of the solar system, only the four current terrestrial planets remained. These diamonds from space formed inside a long-lost planet, scientists say 2018-04-17T04:00:00Z Proximity to the Sun explains why the terrestrial planets are so much smaller than the gas giant and ice giant planets. Physical Geology 2015-01-01T00:00:00Z Halliday, A. N. The origin of volatiles in the terrestrial planets. Halogens in chondritic meteorites and terrestrial accretion 2017-11-28T05:00:00Z Why do the giant planets and their moons have compositions different from those of the terrestrial planets? Astronomy 2016-10-13T00:00:00Z "In terms of Earth-sized terrestrial planets, it's really Venus," says Colin Wilson, a planetary scientist at the University of Oxford in the United Kingdom. Armed with tough computer chips, scientists are ready to return to the hell of Venus 2017-11-22T05:00:00Z Until now geophysicists have really only studied one active terrestrial planet up close—Earth. NASA's Next Mars Lander Zooms toward Launch 2017-11-14T05:00:00Z It is useful to approximate the structure of a terrestrial planet as having two parts: a metal core and a rocky mantle. Physical Geology 2015-01-01T00:00:00Z To see terrestrial planets will require a similarly equipped telescope in space, above the distorting effect of the atmosphere. Earth-sized alien worlds are out there. Now, astronomers are figuring out how to detect life on them 2017-11-01T04:00:00Z The race to image jovian planets with current instruments and why a direct image of a terrestrial planet is still in the future. Astronomy 2016-10-13T00:00:00Z It provided remarkable new insights on the composition and structure of the smallest terrestrial planet, and it made the amazing discovery that water-ice is held inside some of its shadowed craters. BepiColombo: 'Last chance to see' Mercury mission - BBC News 2017-07-05T04:00:00Z These are the largest of the terrestrial planets, similar in composition to the inner planets of the Solar System, and are sometimes known as super-Earths. Planets come in different species 2017-06-22T04:00:00Z In 2026, it will begin scouring the skies for alternative Earths, terrestrial planets at a distance from sunlike stars that are comfortable for life. Europe backs missions to search for Earth-like planets, deep space cataclysms 2017-06-20T04:00:00Z “We’ve explored terrestrial planets, gas giants, and a range of other bodies orbiting the sun,” Jim Green, NASA's planetary science director, said in a statement. NASA’s newest missions will explore the solar system’s asteroids 2017-01-04T05:00:00Z The terrestrial planets are relatively small worlds, composed primarily of rock and metal. Astronomy 2016-10-13T00:00:00Z Compared to dry Vesta, Ceres is more like Enceladus and Europa, icy moons of the giant gas planets Saturn and Jupiter respectively, than Earth and the other terrestrial planets Mercury, Venus and Mars, Prettyman added. Dwarf planet Ceres is flush with ice, NASA studies show 2016-12-15T05:00:00Z Anglada-Escudé and his colleagues estimate that Proxima b is at least 1.3 times as big as Earth and is most likely a terrestrial planet, with a surface. An Exoplanet Too Far 2016-08-24T04:00:00Z For every type of star in the simulation, Forgan and his colleagues estimated the probability that terrestrial planets would form, some of which might be Earth–like or might be as inhospitable as Mercury. The most likely spots for life in the Milky Way 2015-12-09T05:00:00Z Even spotting the signatures of oxygen in the atmosphere of one of the terrestrial planets was not unprecedented. Beyond 550 astronomical units : Nature : Nature Publishing Group 2015-12-01T05:00:00Z The planets can be divided into two groups: the inner terrestrial planets and the outer giant planets. Astronomy 2016-10-13T00:00:00Z “It’s truly amazing—it’s like something from a terrestrial planet.” Ice volcanoes spotted on Pluto, suggest internal heat source 2015-11-09T05:00:00Z In April in Science Advances, Johansen and his colleagues7 suggested that pebble accretion might be able to explain how the cores of Mars and other terrestrial planets formed. Small rocks build big planets 2015-08-18T04:00:00Z The first zone contains the rocky, terrestrial planets of Mercury, Venus, Earth and Mars. Nasa's New Horizons probe in final countdown to Pluto flyby 2015-07-10T04:00:00Z Using supercomputer models, the paper’s authors ran some 150 simulations to mimic the assembly of all terrestrial planets in orbit about our Sun. Earth-Moon Combination Is Likely Very Rare, Study Confirms 2015-06-27T04:00:00Z The terrestrial planets consist mostly of rocks and metals. Astronomy 2016-10-13T00:00:00Z “In this scenario, the Solar System’s terrestrial planets formed from gas-starved mass-depleted debris that remained,” the authors wrote in the paper. Jupiter May Have Destroyed Early Planets And Paved The Way For Earth 2015-03-24T04:00:00Z "By studying Vesta and Ceres, we will gain a better understanding of the formation of our solar system, especially the terrestrial planets and most importantly the Earth," said Raymond. A NASA probe is orbiting a dwarf planet for the first time ever 2015-03-06T05:00:00Z Even so, the team’s findings will likely help precipitate a paradigm shift of how planet hunters and astrobiologists view terrestrial planet formation within the Milky Way. NASA Kepler Finds Milky Way's Oldest Known Earth-Mass Planets 2014-12-23T05:00:00Z The asteroid-return mission qualifies as sophisticated exploration, building on the US space agency’s wildly successful two-decade run of robotic missions to Jupiter, Saturn and the terrestrial planets. NASA to return sample from Earth-bound asteroid 2014-09-10T04:00:00Z The Moon resembles the terrestrial planets in composition, but most of the other moons—which orbit the giant planets—have larger quantities of frozen ice within them. Astronomy 2016-10-13T00:00:00Z "Even though we're going to Mars, this is not a Mars mission … as much as it is a terrestrial planet mission," Spath said. NASA's Next Mars Lander Will Peer Deep into Planet's History 2014-08-18T04:00:00Z Studying Io provides scientists with something of a volcanic laboratory, helping them to examine the processes that helped to shape the surfaces of terrestrial planets and moons in the Solar System, including Earth. Super-Volcanoes On Jupiter's Io Gush Molten Lava Out Into Space 2014-08-05T04:00:00Z Such heavy elements, Loeb notes, are crucial when forming terrestrial planets like our own. Complex Life Possible Within Cosmos' First Billion Years 2013-12-10T10:40:00Z However, like so many objects in the Main Asteroid Belt, Jupiter’s gravity put a squelch on Ceres’ ability to form a full-sized terrestrial planet. Dwarf Planet Ceres May Harbor Life; NASA Spacecraft Enroute 2013-10-20T06:45:00Z A geological division into older highlands and younger lowland plains seems to be characteristic of all the terrestrial planets except Mercury. Astronomy 2016-10-13T00:00:00Z These fundamental relationships may help to improve seismic hazard forecasts or to interpret topographic data collected on other terrestrial planets. [Report] Hillslopes Record the Growth and Decay of Landscapes 2013-08-22T18:26:02.497Z Asteroids or big rocks are really the building blocks of planets, so the fact that we're seeing giant rocks at these stars means that terrestrial planets were built during the stars' energy-producing lifetime. 'Dirty' stars hint at Sun's future 2013-05-09T22:25:05Z And although the world is far too hot to support life as we know it, its presence suggests that additional terrestrial planets may exist in more temperate orbits within the same planetary system. The Exoplanet Next-Door: Astronomers Discover World in Nearest Star System 2012-10-17T14:15:00.470Z But, in fact, they were also likely responsible for triggering terrestrial planet formation. Planets Made Easy: The Cosmic Glue That Binds Us All 2012-09-30T11:10:48Z We believe that all of the terrestrial planets had similar histories when it comes to impacts from space. Astronomy 2016-10-13T00:00:00Z Early in the solar system's history asteroids and terrestrial planets were formed from molten material. Ball Wet: Massive Asteroid Vesta Harbors Scant Frozen Water at Surface 2012-09-20T22:15:00.207Z Similarly, two other earthly bio-signatures—methyl chloride and nitrous oxide—may be more prevalent and easier to detect on terrestrial planets circling M dwarfs, Meadows says. New Biomarkers Honed to Help Search for Life on Earthlike Exoplanets 2012-07-23T17:45:06.957Z "So much dust orbiting so close to a young star implies that rocky planets similar to the terrestrial planets of our own solar system were in the process of forming around this star," he said. Poof! Dust disk that might have made planets disappears 2012-07-04T17:02:39Z For instance, its surface composition implies a complex geological history that's more similar to that of terrestrial planets than other asteroids, researchers said. Huge Asteroid Vesta Actually Is an Ancient Protoplanet 2012-05-11T14:45:03.447Z Summarize the main differences between their geology and that of the rocky terrestrial planets. Astronomy 2016-10-13T00:00:00Z Nevertheless, it considers itself the only really polite and enlightened community on the whole face of this evolving terrestrial planet. The Beckoning Hand and Other Stories 2012-01-10T03:00:17.100Z Because beneath their rocky exteriors, some terrestrial planets may be half diamond. Some Terrestrial Exoplanets May Be Half Diamond 2011-12-15T01:45:00.220Z "I've started calling it the smallest terrestrial planet," said Russell, the principal investigator for NASA's Dawn mission, which sent a spacecraft into orbit at Vesta in July. Planetary Pretender: Asteroid Vesta Has Planet-Like Features 2011-10-04T20:45:05.983Z The sulfur abundance suggests that Mercury formed from materials that were less oxidized than the materials that formed the rest of the terrestrial planets, Nittler says. Hot, Odd and Curious: NASA Orbiter Reveals Mercury to Be Surprisingly Complex 2011-10-03T21:45:05.207Z They are on unstable orbits, and on timescales of 100 million years, they will either impact one of the terrestrial planets or the Sun, or be ejected. Astronomy 2016-10-13T00:00:00Z Now we've got tens of thousands of terrestrial planets in habitable zones. Event horizon 2011-07-20T17:20:33.377Z The surface of Mercury occupies a fairly unique location on the diagram for the surfaces of terrestrial planets. Messenger spies Mercury in detail 2011-06-16T19:16:39Z Jupiter's migration would account for the divergent sizes of the terrestrial planets, and it also seems to gibe with the current state of the Asteroid Belt, which lies between the orbits of Mars and Saturn. Mass Arrest: Jupiter's Early Migration Could Explain Mars's Small Size 2011-06-06T19:45:05.300Z But even moonless terrestrial planets could be habitable, contrary to previous belief. Who Needs a Moon? 2011-05-27T20:55:01Z According to the same arguments, the Moon should have higher mountains than any of the other terrestrial planets, yet we know it does not. Astronomy 2016-10-13T00:00:00Z I can see now that it is no hiding-place in man’s true nature, and if they are not learned upon the terrestrial planet, they will have to learn before they can become celestial angels. A Book Written by the Spirits of the So-Called Dead 2011-05-03T02:00:15.900Z But astronomers hope that the mission will eventually yield a trove of terrestrial planets, including some orbiting their stars at a distance that would allow their surfaces to host liquid , and possibly life. Space scope finds scorched super-Earth 2011-01-11T01:15:03.893Z The model also indicates that Mars ought to have a composition and atmosphere different from Earth and Venus because it acquired most of its bulk in a region farther out than the other terrestrial planets. Why Mars Is a Lightweight 2010-10-05T14:39:00Z The finding contradicts the prevailing notion that a terrestrial planet needs a large moon to stabilize the orientation of its axis and, hence, its climate. Who Needs a Moon? 2011-05-27T20:55:01Z Looking for terrestrial planets in the habitable zone with evidence of life. Astronomy 2016-10-13T00:00:00Z Models of terrestrial planet formation of low-mass stars find that if planets form only from local material, they don’t get much bigger than 1 Earth mass. 'Real Deal' Planets, Near and Far 2010-10-01T16:32:00Z It is obviously of oriental origin, being analogous to the astronomical theory of the elephant and tortoise, by which the Hindoos are said so clearly to account for the support of our terrestrial planet. Blackwood's Edinburgh Magazine, Volume 58, Number 360, October 1845 The terrestrial planets are Mercury, Venus, the earth, and Mars. Astronomy of To-day A Popular Introduction in Non-Technical Language Crossing the zone of asteroids on our journey outward from the sun, we meet with a group of bodies widely different from the "inferior" or terrestrial planets. A Popular History of Astronomy During the Nineteenth Century Fourth Edition Similar lava plains are found on the Moon and the other terrestrial planets. Astronomy 2016-10-13T00:00:00Z The terrestrial planets, taking their class name from terra, the earth, are relatively close to the sun and comparatively small. Other Worlds Their Nature, Possibilities and Habitability in the Light of the Latest Discoveries "Women are the poetry of the world, in the same sense that the stars are the poetry of heaven," says Hargrave; "clear, light-giving, harmonious, they are the terrestrial planets that rule the destinies of mankind." The Golden Censer The duties of to-day, the hopes of the future Further, the markings on the surfaces of the terrestrial planets are permanent, whereas those on the major planets are continually shifting. Astronomy of To-day A Popular Introduction in Non-Technical Language Our terrestrial planet is in constant increase by meteoric dust, moving to it through endless time out of infinite space. Plato and Platonism Since these planets have no solid surfaces, their atmospheres are more representative of their general compositions than is the case with the terrestrial planets. Astronomy 2016-10-13T00:00:00Z These eight planets fall into two classes—the terrestrial planets and the major, or jovian, planets. Other Worlds Their Nature, Possibilities and Habitability in the Light of the Latest Discoveries What we expect from Kepler data, then, is evidence of coplanar planetary systems confined to what would be the realm of the terrestrial planets in our solar system. Astronomy 2016-10-13T00:00:00Z The terrestrial planets are all of them relatively small in size, comparatively near together, and have few or no satellites. Astronomy of To-day A Popular Introduction in Non-Technical Language For the most part, the history of volcanic activity on the terrestrial planets conforms to the predictions of this simple theory. Astronomy 2016-10-13T00:00:00Z Neither its path around the Sun nor its size resembles either the giant planets or the terrestrial planets. Astronomy 2016-10-13T00:00:00Z Explain our ideas about why the terrestrial planets are rocky and have less gas than the giant planets. Astronomy 2016-10-13T00:00:00Z How far down would the zone of the terrestrial planets reach? Astronomy 2016-10-13T00:00:00Z In Cosmic Samples and the Origin of the Solar System, we return to the comparative study of the terrestrial planets and their divergent evolutionary histories. Astronomy 2016-10-13T00:00:00Z The atmospheric motions we see on these planets are fundamentally different from those on the terrestrial planets. Astronomy 2016-10-13T00:00:00Z Therefore, it was called a dwarf planet, meaning a planet much smaller than the terrestrial planets. Astronomy 2016-10-13T00:00:00Z The atmospheric pressure on this moon is 1.6 bars, higher than that on any other moon and, remarkably, even higher than that of the terrestrial planets Mars and Earth. Astronomy 2016-10-13T00:00:00Z This graphic vividly shows how tiny Pluto is relative to a terrestrial planet like Earth. Astronomy 2016-10-13T00:00:00Z In comparison, the terrestrial planets and our Moon are relatively deficient in the light gases and the various ices that form from the common elements oxygen, carbon, and nitrogen. Astronomy 2016-10-13T00:00:00Z The surfaces of terrestrial planets have been modified by impacts from space and by varying degrees of geological activity. Astronomy 2016-10-13T00:00:00Z Earth and Venus are the largest and most active terrestrial planets. Astronomy 2016-10-13T00:00:00Z There is increasing evidence that large chunks of material—objects of essentially planetary mass—were orbiting in the inner solar system at the time that the terrestrial planets formed. Astronomy 2016-10-13T00:00:00Z The fact that there are two distinct kinds of planets—the rocky terrestrial planets and the gas-rich jovian planets—leads us to believe that they formed under different conditions. Astronomy 2016-10-13T00:00:00Z When we look at the internal structure of each of the terrestrial planets, we find that the densest metals are in a central core, with the lighter silicates near the surface. Astronomy 2016-10-13T00:00:00Z This leads us to conclude that, although the terrestrial planets are solid today, at one time they must have been hot enough to melt. Astronomy 2016-10-13T00:00:00Z The geological evolution of the icy moons and Pluto has been somewhat different from that of the terrestrial planets. Astronomy 2016-10-13T00:00:00Z Earth and Venus, the largest terrestrial planets, still have molten interiors even today, some 4.5 billion years after their birth. Astronomy 2016-10-13T00:00:00Z The atmospheres of the terrestrial planets may have acquired volatile materials from comet impacts. Astronomy 2016-10-13T00:00:00Z |
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