The Dynamics of an Asteroid.
Now she acted as mother to a planet, not to a person;
One planet, containing two worlds.
And this is just one planet.
They saw one planet almost immediately.Combinations with other parts of speech
We landed on one of the planets to pick up equipment.
There's a planet called normal.
Yes, Pluto is a planet!
It is just one planet.
One of the planets, codenamed"Kepler-90i.
Pythagoras is said to have identified these as a single planet.
Alternatively, researchers havespeculated that OGLE might not even be a planet.
Your body is like a planet.
Within days, they confirmed that the planet was there;
Each day is ruled by one of the planets.
Every star has at least one planet.
It makes me think of a planet.
So the DoC suggested that we open up one planet for second-generation colonists.
That's the planet that we live on.我们不知道一颗行星是如何在如此接近太阳的情况下形成和演化的,也不知道水星的奇特化学性质。
We don't know how a planet formed and evolved so close to the Sun, and nor do we understand Mercury's weird chemistry.刘易斯的团队将观察其中一颗行星TRAPPIST-1e,不仅是为了探测大气层,还为了确定它的基本组成。
Lewis' team will observe one of the planets, TRAPPIST-1e, in an effort to not only detect an atmosphere, but also to determine its basic composition.最初被描述为一颗行星,后来Ceres被归类为一颗小行星,然后在2006年被重新归类为一颗矮行星。
Originally described as a planet, Ceres was later categorized as an asteroid, and then reclassified as a dwarf planet in 2006.当一颗行星绕着恒星公转,恒星也会绕着质量中心在自己小小的轨道上移动。
As a planet orbits a star, the star also moves in its own small orbit around the system's center of mass.那你会怎么做?'首先,我将从其中一颗行星的观测中反过来研究--土星可能是最好的选择。
First I will work backwards from the observations of one of the planets- Saturn might be the best one to choose.年的时候,大量的观察结果产生了275个“候选”信号,但它们有可能、或并不是一颗行星。
Dating back to 2014, the wealth of observations produced a total of 275“candidate” signals which may ormay not have been planets.在HD141569A的光盘中,两个环之间的间隙表明一颗行星正在形成,引力将轨道上的所有物质吸走。
In HD 141569A's disc, a gap between the two rings suggested that a planet was forming, gravitationally hoovering up all the material in its orbit.他说,”你怎么知道一颗行星能承受一个更复杂的生态平衡如果他们都有简单的吗?
He said,“How do you know that a planet can bear a more complex ecological balance if they all have simple ones?”?但KELT-9b的发现拓宽了我们的眼界,让我们更加了解一颗行星是如何形成和毁灭的。
But this new glimpse at hellish KELT-9b widens our understanding of what could be out there,and how planets are born and destroyed.