根据一种假设，这颗行星的重力场会对由尘埃和气体组成的原行星盘产生牵引力。
According to one hypothesis, the planet's gravitational field tugs on the protoplanetary disk of dust and gas from which it formed.
在此期间，原行星的核开始凝成。
In the meantime the protoplanet cores were proceeding to consolidate.
动态模拟证明原行星是怎样保持与太阳之间有一个安全的距离。
Model suggests how protoplanets kept a safe distance from the sun
他们的形体能达到多大取决于他们离恒星的距离和原行星星云的组成。
How big they get depends on their distance from the star and the density and composition of the protoplanetary nebula.
气体星团推动原行星向外的推力可能在某些时候强于那些使它向内的推力。
Gas clusters that push the protoplanet outward can sometimes exert stronger forces than those that push inward.
斯皮策的数据则显示出这些年轻恒星是否有所谓的“原行星”盘环绕着他们自己。
The Spitzerdata showed whether the young stars have a so-called "protoplanetary"disk around them.
在这个模型里，盘状物变得愈来愈稀薄的速度要比它把原行星向内推的速度要快。
In this model, the disk thins out faster than it pushes planets inward.
柯依伯带被认为是50亿年前形成太阳系的原行星盘的古老的残留物质。
The objects are considered fossil remnants of the swirling disk of debris that coalesced to form the solar system roughly 5 billion years ago.
如果一个原行星足够大，形成足够快，它的重力会拉入星云的气体，它就会变成一个巨型气体行星。
If a protoplanet was large enough, soon enough, its gravity would pull in the nebular gas, and it would become a gas giant.
这是哈勃望远镜拍摄到的猎户星云中的原行星盘(proplyds，protoplanetarydisks)。
A Hubble Space Telescope image shows "proplyds, " or protoplanetary disks, in the Orion Nebula.
当这个盘状物开始合并成为一组原行星时，它们的引力拉动着盘状物周围气体所凝聚的硬块，一起环绕着恒星作轨道运行。
When the disk begins to coalesce into protoplanets, the gravity of those protoplanets pulls clumps of gas around the disk with them as they orbit the star.
沃森说：“在对原行星盘及其演化情况的理解上，该研究取得了较大的进展。”亚利桑那州图森史都华天文台。
The study represents "a major advance in our understanding of protoplanetary disks and their evolution, " Watson says. And astronomer Zoltan Balog of the Steward Observatory.
这两颗较大的小行星也被称为“原行星”，通常认为这两颗小行星形成于同一时间，并且其形成环境与水星、金星、地球和火星相同。
Both large asteroids, also known as' protoplanets, 'are believed to have formed at the same time and in similar environments as Mercury, Venus, Earth, and Mars.
“太阳总有一天会变成白矮星，这也是为什么我们有兴趣去了解更多以及如同原恒星那样在所有行星身上发生的一切。”在他笔记中这样写到。
"The sun will one day become a White Dwarf star, which is why we're interested in knowing more about them and what happens to any planets the original star might have had," Provencal notes.
他们记录了行星形成前，太阳系的历史，并且是第一个围绕我们原太阳的固体凝结的气体星云。
'They recorded the history of the solar system before any of the planets formed, and were the first solids to condense out of the gaseous nebula surrounding our protosun.'
原宇航员RustySchweickart说道。 他是B612基金会的共同发起人，该组织致力于保护地球免受小行星的撞击。
“You’re moving the largest mother lode imaginable ” said former astronaut Rusty Schweickart cofounder of the B612 Foundation an organization dedicated to protecting Earth from asteroid strikes.
在银河系漂流了一番后，卡莉斯塔最后来到纳姆乔里奥斯——一个浸润在原力中的世界，这种现象是这颗行星上的活体水晶引起的。
As she drifted across the galaxy, Callista eventually came to Nam Chorios, a world drenched in the power of the Force, a phenomenon brought about by the living crystals on the planet.
拉克萨斯主行星出现在《波巴·费特》青少年系列读物、《星球大战：克隆人战争》电视游戏和《星球大战：原力释放》中。
Raxus Prime is featured in both the Boba Fett young reader series of novels, the Star Wars: The Clone Wars console game, and Star Wars: The Force Unleashed.
数千年来，原力采集器一直隐藏在垃圾世界拉克·萨斯主行星成堆的星际残骸下。
For thousands of years, the Force Harvester lay hidden beneath the piles of intergalactic debris on the garbage world of Raxus Prime.
欧洲航天局正致力于一项堂吉诃德研究项目，该项目旨在使用大型、重型航天器撞击小行星使其偏离原轨道。
The EuropeanSpace Agency is working on a mission called Don Quijote that aims to use alarge, heavy spacecraft to ram an asteroid out of the way.
欧洲航天局正致力于一项堂吉诃德研究项目，该项目旨在使用大型、重型航天器撞击小行星使其偏离原轨道。
The EuropeanSpace Agency is working on a mission called Don Quijote that aims to use alarge, heavy spacecraft to ram an asteroid out of the way.
应用推荐