| 单词 | interstellar medium |
| 例句 | The study results suggest that IRS13 migrated toward the super massive black hole through friction with the interstellar medium, collisions with other star clusters, or internal processes. Stellar fountain of youth with turbulent formation history in the center of our galaxy 2023-10-10T04:00:00Z But exactly what this draping looks like and how it gives way to the pristine interstellar medium have remained open questions—that is, until now. Scientists Make Best-Yet Map of Solar System’s Interstellar Boundaries 2023-06-08T04:00:00Z Because the interstellar medium is so cold, classical reactions are very slow, but tunneling is more likely—particles move past each other more slowly at low temperatures, which ups the odds of tunneling. Bizarre Quantum Tunneling Observation Throws Out All the Rules 2023-04-04T04:00:00Z “A comet traveling through the interstellar medium basically is getting cooked by cosmic radiation, forming hydrogen as a result,” Dr. Bergner said in a statement issued by the University of California, Berkeley. Oumuamua Was a Comet After All, a Study Suggests 2023-03-22T04:00:00Z Comets, which are icy, "may have provided water on Earth," Tobin said, though we also see water extending back to "protostars and the interstellar medium." Tracing water's path through young solar systems hints at how alien life might form 2023-03-15T04:00:00Z In 2012 and 2019, NASA’s Voyager 1 and 2 spacecraft respectively broke through the heliopause, the boundary at which our sun’s sphere of influence gives way to the interstellar medium. NASA’s Pluto Spacecraft Begins New Mission at the Solar System’s Edge 2022-12-21T05:00:00Z IBEX, on the other hand, provides a “big picture” perspective by detecting the energetic showers of atoms produced through collisions between solar wind particles and interstellar medium particles at the heliosphere’s boundary. Scientists Make Best-Yet Map of Solar System’s Interstellar Boundaries 2023-06-08T04:00:00Z Why is this line such an important tool for understanding the interstellar medium? Astronomy 2016-10-13T00:00:00Z Tempering that thrilling prospect was the fact that the probes were engineered primarily to interrogate Jupiter’s powerful magnetosphere, not the far weaker fields and particles of the interstellar medium. ‘Voyager on steroids.’ Mission would probe mysterious region beyond our Solar System 2022-07-27T04:00:00Z "And so we've now established the path of water to get to planets, and comets, from the interstellar medium." Tracing water's path through young solar systems hints at how alien life might form 2023-03-15T04:00:00Z In hot pursuit, however, is a far more advanced vehicle, sporting improved instruments, updated optics, and even a means to sample the interstellar medium itself. NASA’s Pluto Spacecraft Begins New Mission at the Solar System’s Edge 2022-12-21T05:00:00Z The Voyagers' data show little field variation at large scales but many small-scale fluctuations around the heliopause, caused by the heliosphere's influence on the interstellar medium. Record-Breaking Voyager Spacecraft Begin to Power Down 2022-06-16T04:00:00Z Is the density difference between a molecular cloud and the interstellar medium larger or smaller than the density difference between air and water or granite? Astronomy 2016-10-13T00:00:00Z A third mission would study X-rays emanating from the interstellar medium - the clouds of gases and particles in the space between stars. NASA to launch 3 rockets from private Australian space port 2022-06-08T04:00:00Z "We've now established that path of water to get to planets, and comets, from the interstellar medium." Tracing water's path through young solar systems hints at how alien life might form 2023-03-15T04:00:00Z “It’s part of the clue to how the overall heliosphere interacts with the interstellar medium on a large scale, and what the interstellar medium is doing to our home.” NASA’s Pluto Spacecraft Begins New Mission at the Solar System’s Edge 2022-12-21T05:00:00Z A third mission would study X-rays emanating from the interstellar medium — the clouds of gases and particles in the space between stars. NASA to launch 3 rockets from private Australian space port 2022-06-07T04:00:00Z What is the radius of the sphere you would have to spread them out over if you wanted them to have the same density as the interstellar medium, about 1 atom per cm3? Astronomy 2016-10-13T00:00:00Z The heliopause is the barrier separating the Sun's solar winds from the interstellar medium, or all of the matter and radiation that exist in the space in-between various solar systems in the galaxy. Humanity's most distant spacecraft is sending back weird signals from beyond our solar system 2022-05-23T04:00:00Z In 2012, Voyager 1 passed the heliopause — the boundary where the Sun’s solar wind ends and the interstellar medium begins. NASA engineers trying to figure out strange readings from aging interstellar spacecraft 2022-05-20T04:00:00Z “One very useful thing the gamma ray data can do is help us understand the effect of the interstellar medium,” which is a major source of noise in PTA searches, McLaughlin says. Astronomers find a new way to detect gravitational waves 2022-04-06T04:00:00Z Other instruments, including a magnetometer and interstellar dust analyzer, would further investigate the interaction of our sun and the interstellar medium. U.S. and Chinese Scientists Propose Bold New Missions beyond the Solar System 2022-01-06T05:00:00Z Several generations of star formation and star death were required to enrich the interstellar medium for subsequent generations of stars. Astronomy 2016-10-13T00:00:00Z Their discovery ushered in a new era for 20th-century astronomy, helping scientists locate distant planets, search for gravitational waves and investigate the interstellar medium that fills the cosmos. Antony Hewish, astronomer who won Nobel Prize for the discovery of pulsars, dies at 97 2021-09-17T04:00:00Z "The interstellar medium is like a quiet or gentle rain," said senior author James Cordes, an astronomy professor at Cornell University. The Voyager 1 probe is now so far away that it can hear the background "hum" of interstellar space 2021-05-11T04:00:00Z Metals are produced by star formation, which jettisons them into a galaxy’s interstellar medium through supernovae—making them available for next-generation stars to use. Giant Galaxies from the Universe’s Childhood Challenge Cosmic Origin Stories 2021-01-27T05:00:00Z “Third, gravitational instabilities induced by the interaction are able to trigger star formation,” Ruiz-Lara added, by causing “ripples” in the density of the gaseous interstellar medium. Collision of galaxies may have spurred our solar system's formation 2020-05-26T04:00:00Z Population I stars formed later, after mass lost by dying members of the first generations of stars had seeded the interstellar medium with elements heavier than hydrogen and helium. Astronomy 2016-10-13T00:00:00Z It was the second spacecraft to cross that boundary and directly observe the interstellar medium. Voyager 2’s Discoveries From Interstellar Space 2019-11-04T05:00:00Z Both are now traversing the Milky Way galaxy’s interstellar medium, a chillier region filling the vast expanses between the galaxy’s stars and planetary systems. NASA probe provides insight on solar system's border with interstellar space 2019-11-04T05:00:00Z A long-standing mystery in astronomical spectroscopy concerns diffuse interstellar bands, a family of absorption features seen in the spectra of the interstellar medium of the Milky Way and of other galaxies. A fresh mechanism for how buckyballs form in space 2019-10-20T04:00:00Z Upon examining the very similar features of the twin bubbles, researchers believe they've found evidence that they were formed from a violent eruption that quickly punched through the interstellar medium in opposite directions. Towering, balloonlike features found near Milky Way galaxy's center 2019-09-11T04:00:00Z The material ejected by the explosion produces a shock wave, which travels through the interstellar medium. Astronomy 2016-10-13T00:00:00Z This cloud was many times greater than the solar system today, casting a giant cosmic net that collected atoms traveling between stars in the so-called interstellar medium. Where (Some of) Earth's Gold Came From 2019-05-23T04:00:00Z Voyager 2 entered the interstellar medium far beyond the orbit of Pluto at a spot about 120 times further from the sun than Earth’s orbit. NASA probe provides insight on solar system's border with interstellar space 2019-11-04T05:00:00Z Similar to wormholes, the DIA explored the use of warp drive as a means of propelling a space vehicle through the interstellar medium. The Pentagon compiled research into invisibility cloaking, wormholes, and warp drive 2019-01-29T05:00:00Z “Now we are fortunate enough to have two very brave sentinels that have left our heliosphere and are out truly looking at the other side of the boundary in our interstellar medium,” Dr. Fox said. Voyager 2 Has Entered the Space Between Solar Systems 2018-12-10T05:00:00Z Gas from intergalactic space constantly falls onto the Milky Way due to its gravity, adding new gas to the interstellar medium. Astronomy 2016-10-13T00:00:00Z One final possibility is that protoplanetary disks are somehow sucking in additional material from the surrounding interstellar medium. Cosmic conundrum: The disks of gas and dust that supposedly form planets don’t seem to have the goods 2018-09-28T04:00:00Z Ramming into the diffuse gas of the interstellar medium, the jets would produce copious radio waves potentially visible from Earth. Giant Black Hole Swallows Star and Belches Out Superfast Particle Jet 2018-06-14T04:00:00Z Anomalous isotopic mixtures in stellar photospheres or the interstellar medium: The Techno-Signature Challenge 2018-03-11T05:00:00Z “That means we must be in the interstellar medium.” Voyager 2 Has Entered the Space Between Solar Systems 2018-12-10T05:00:00Z Instead, these components of the interstellar medium were made inside stars in the Milky Way, which returned them to the interstellar medium at the end of their lives. Astronomy 2016-10-13T00:00:00Z He doesn’t think the team’s interpretations about a generally murky interstellar medium are correct. Mysterious Particles Are Slamming Into Earth—But Why? 2017-11-16T05:00:00Z The extinction within the host galaxy is negligible according to the absence of substantial detection of characteristic narrow absorption features associated with its interstellar medium. Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger : Nature : Nature Research 2017-10-15T04:00:00Z Molecules designed to produce specific spectral signatures in interstellar medium or planetary system gas: The Techno-Signature Challenge 2018-03-11T05:00:00Z Eventually, that hydrogen shell slows down and stops when it runs into the particles and dust that exist in the space between stars, called the interstellar medium. Korean astronomers saw a distant explosion 600 years ago — and we just found the stars that caused it 2017-08-30T04:00:00Z At the average density of the interstellar medium, 1 atom per cm3, how big a volume of material must be used to make a star with the mass of the Sun? Astronomy 2016-10-13T00:00:00Z The biggest risk at this stage is serious damage from collisions with dust specks, hydrogen atoms and other particles in the interstellar medium. What it would take to reach the stars 2017-01-31T05:00:00Z “We are confident that there is no effect of the interstellar medium,” Mignani says. Astronomers spot signs of weird quantum distortion in space 2016-11-30T05:00:00Z Astronomers use these radio beacons, powered by spinning neutron stars, to study the interstellar medium and detect gravitational waves. World’s largest radio telescope will search for dark matter, listen for aliens 2016-09-26T04:00:00Z This is found in diffuse clouds in the interstellar medium that fills the space between the stars in galaxies. China Builds World's Largest Radio Telescope 2016-07-11T04:00:00Z Review of how stellar evolution, the interstellar medium, and supernovae all work together to recycle cosmic material. Astronomy 2016-10-13T00:00:00Z Mission designers will not be able to eliminate all risks, especially from as-yet unknown objects in the interstellar medium. What it would take to reach the stars 2017-01-31T05:00:00Z It might be thought that the interstellar medium is “empty space,” or a vacuum. Interstellar Travel as Delusional Fantasy [Excerpt] 2015-10-03T04:00:00Z "It's enormously exciting to think that such huge gas phase molecules could be ubiquitous throughout the interstellar medium of our galaxy!" he says. Buckyballs in space solve 100-year-old riddle 2015-07-14T04:00:00Z In contrast, Kaiser says molecular formation in the interstellar medium is much more versatile. DNA Via Cosmic Barbecue? 2015-05-16T04:00:00Z Why is star formation more likely to occur in cold molecular clouds than in regions where the temperature of the interstellar medium is several hundred thousand degrees? Astronomy 2016-10-13T00:00:00Z "Our goal is to search for new complex organic molecules in the interstellar medium." Complex molecule discovered in space 2014-09-26T04:00:00Z One category of risk arose from factors or forces external to the spacecraft—for example, collisions with objects in the interstellar medium. Interstellar Travel as Delusional Fantasy [Excerpt] 2015-10-03T04:00:00Z Burton adds that it’s still not fully understood how such GMCs assemble from our galaxy’s atomic substrates, but the process involves the continual recycling of gas in the interstellar medium. 'Space-Based' Astronomy From Antarctica 2014-02-25T11:29:00Z In this image, fluidlike wisps are created as ejected gas from a supernova collides with gas and dust in the surrounding interstellar medium. Big Bang Secrets Swirling in a Fluid Universe 2014-02-21T16:00:00Z During the later phases of stellar evolution, stars expel some of their mass, which returns to the interstellar medium to form new stars. Astronomy 2016-10-13T00:00:00Z The heliopause—the boundary between the local heliosphere and the interstellar medium beyond—is a boundary not only of particles but of magnetic fields as well. Voyager 1 Returns Surprising Data about an Unexplored Region of Deep Space 2013-06-27T19:15:08.627Z It doesn’t mean that one is leaving the solar system, just that one is now bathed in a different medium – the interstellar medium, not the solar medium. Voyager's Exit To The Stars...In 17,000 Years 2013-04-08T16:15:28.010Z He notes that should produce radiation capable of ionizing the helium contained in the interstellar medium. European Southern Observatory (ESO) Sets 'First Light' For World's Largest Telescope 2013-03-20T10:25:01Z When the high-speed proton collides with their low-speed cousins in the interstellar medium, their interaction often spawns an elementary particle called a neutral pion. Source of High-Energy Cosmic Rays Nailed at Last 2013-02-14T19:35:00Z On the other hand, as stars go through their lives and die, they lose mass all the time into the space between them, thereby returning some of the gas and dust to the interstellar medium. Astronomy 2016-10-13T00:00:00Z Someday soon, it is expected, Voyager 1 will become the first spacecraft to exit the heliosphere—the bubble of solar plasma encasing the sun and planets—and enter the interstellar medium. Voyager 1 Returns Surprising Data about an Unexplored Region of Deep Space 2013-06-27T19:15:08.627Z This is the entry point to the interstellar medium, in a sense the atmosphere of the Milky Way. Voyager's Exit To The Stars...In 17,000 Years 2013-04-08T16:15:28.010Z Molecules made with carbon are ubiquitous, whether in the sparse interstellar medium or the thickening clouds of forming proto-stellar systems, organic chemistry dominates. Should We Expect Other Earth-like Planets At All? 2012-12-26T20:15:00.430Z The mechanism goes something like this: The supernova remnant is an expanding spherical shell of matter pushing outwards into the diffuse gas between the stars—the interstellar medium. Source of High-Energy Cosmic Rays Nailed at Last 2013-02-14T19:35:00Z Along the way, the particles in the jets can plow into gas clouds in the interstellar medium, breaking them apart and scattering them. Astronomy 2016-10-13T00:00:00Z For years Voyager 1 has been closing in on the heliopause—the outer edge of the heliosphere—where the solar wind meets the interstellar medium. Despite Tantalizing Hints, Voyager 1 Has Not Crossed into the Interstellar Medium 2012-12-05T15:16:18.543Z There are only a handful known in the galaxy, before they mix with the surrounding interstellar medium and dim beyond the view of telescopes. When A Supernova ... Fizzles 2012-11-20T16:05:37Z Its measurements suggest that the Sun and planets are moving through the interstellar medium about 12% slower than previously calculated — too slow to generate a bow shock. Voyager’s long goodbye 2012-09-05T17:20:30.527Z The probes have detected a noticeable change in the behaviour of the solar wind - the first signs that it is being pushed back by the interstellar medium that permeates the Milky Way galaxy. Near neighbours 2010-03-05T09:27:00Z This image is from a computer simulation of the Milky Way Galaxy’s interstellar medium as a whole. Astronomy 2016-10-13T00:00:00Z Still, no one knows how much farther Voyager 1 may have to travel before it breaches the heliopause and enters the interstellar medium. Despite Tantalizing Hints, Voyager 1 Has Not Crossed into the Interstellar Medium 2012-12-05T15:16:18.543Z From the phenomena of sound, as displayed in the air, they ascended to the phenomena of light, as displayed in the aether; which is the name given to the interstellar medium. Fragments of science, V. 1-2 While some of this emission comes from the interaction of the solar wind with the interstellar medium, a majority of it comes from beyond the solar system. Astronomy 2016-10-13T00:00:00Z At the same time, gas is constantly being added to the Galaxy by accretion from extragalactic space, while mass is removed from the interstellar medium by being locked in stars. Astronomy 2016-10-13T00:00:00Z However, the interstellar medium is not a closed system. Astronomy 2016-10-13T00:00:00Z Some of the mass in stars is, in turn, returned to the interstellar medium when those stars evolve and die. Astronomy 2016-10-13T00:00:00Z These elements and grains, in turn, can then be incorporated into new stars and planetary systems that form out of the interstellar medium. Astronomy 2016-10-13T00:00:00Z Recent observations of water in the interstellar medium by satellite telescopes. Astronomy 2016-10-13T00:00:00Z We will begin our voyage through the interstellar medium by exploring the different conditions under which we find gas. Astronomy 2016-10-13T00:00:00Z The dust grains produced by stars may grow even further when they spend time in the dense parts of the interstellar medium, inside molecular clouds. Astronomy 2016-10-13T00:00:00Z The Sun is a member of population I. Population I stars formed after previous generations of stars had produced heavy elements and ejected them into the interstellar medium. Astronomy 2016-10-13T00:00:00Z |
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