这几张照片显示了一个挤满新生恒星的区域、一个类似太阳的稳定恒星以及一个内部都是恒星的漩涡状星系。
The images show a bustling star-forming region, the remains of a star similar to the sun, and a swirling galaxy lined with stars.
理想的情况是这样的：在居住区内发现和地球组成结构类似的行星，并且围绕稳定的恒星公转。
The ideal discovery would be a planet similar in composition to Earth that lies within the Goldilocks Zone and orbits a stable star.
在我们这个宇宙里出现了漫长生命周期的恒星，具有稳定轨道的行星，能够实现复杂化学变化的分子，仿佛它的物理法则曾被精确校准过。
In our universe the laws of physics seem precisely calibrated to allow the existence of long-lived stars, planets with stable orbits, and molecules that allow complex chemistry.
然而，假如一颗已有行星伴随的恒星再要捕获另一颗行星，那么已有行星中的一颗便会改变它的轨道，而这样的结果将会导致系统不稳定。
However, if a star with planets captures another one, then one of its existing planets must change its orbit, and this could make the system unstable.
数十年来，天文学家们一度怀疑一种更寂静的恒星爆炸的存在——称之为“对不稳定”超新星，其能量超过普通超新星100倍。
For decades astronomers have suspected the existence of a type of stellar explosion that is bigger still-a "pair-instability" supernova, with 100 times more energy than an ordinary supernova.
这个过程可能周而复始，周期性地重复--天文学家称之为"脉动"对不稳定性超新星--直至恒星失去足够的物质，在普通超新星的形态中走到生命的尽头。
The cycle can repeat itself in pulses—astronomers call this case a “pulsational” pair-instability supernova—until the star loses enough mass to end its life in an ordinary supernova.
太阳系外行星搜索者宣布发现了一个新行星，环绕其遥远恒星的可居住带运行，这一区域既不太热，也不太冷地区有稳定的液态水，有可能成为生命的一个立足之地。
Exoplanet hunters announced a new world orbiting in its dim star's habitable zone, the not-too-hot, not-too-cold region where liquid water is stable and life could potentially find a foothold.
这样的距离应当会使母恒星的引力影响足够微弱，以致COROT9b能够保留距离自己几百万公里的稳定旋转卫星。
At that distance the host star's gravitational influence should be sufficiently weak that COROT 9 b could retain stably orbiting moons millions of kilometers from the planet.
一颗行星与两颗恒星能够组成一个稳定的旋转系统。
“A pirouette of two stars and a planet can be stable, ” explains Dr Koch.
电脑模拟显示，如果在一个恒星系统中有超过一个巨行星存在的话，它们会上演一场“重力掰手腕”比赛，这会使得它们的轨道变得不稳定。
Computer simulations show that if there is more than one giant planet in a solar system's family, they will perform a kind of gravitational arm-wrestling match, making their orbits unstable.
当一颗类日恒星大部分的氢聚变为氦，氦又聚变成碳的时候，它就变得不再稳定，而膨胀成一颗红巨星。
When a star similar to the sun fuses most of its hydrogen into helium, then the helium into carbon, the star becomes unstable and puffs out into a red giant.
大多数科学家认为，当白矮星(年老恒星坍缩而成的残骸)超过质量极限，变得不稳定并爆发的时候，会产生Ia型超新星。
Most scientists agree a Type 1a supernova occurs when a White Dwarf star — a collapsed remnant of an elderly star — exceeds its weight limit, becomes unstable and explodes.
这不稳定的恒星有多危险？
这就导致了一个与恒星的温度，压力不稳定，引发了毁灭性的爆炸，甩明星进入空间仍然存在。
This leads to an instability between the star's temperature and pressure, sparking a devastating explosion that flings the star's remains into space.
这可归结于在一个时期内恒星活动不稳定与查姆帕拉星生命早期进化恰好同期所致。
This dated back to a period of solar instability coinciding with the early evolution of life on Champala.
象太阳那样的一颗普通恒星就是一架十分巧妙的可控机器，它能在稳定条件下持续运转异常长的时间。
An ordinary star such as the sun is a splendidly controlled machine that can go on operating under stable conditions for an immense length of time.
这引会起压强的突降，使得恒星不稳定并在自己的重力下收缩。最终这个过程引发了雪崩式的核反应并将恒星斯裂开。
This causes a drop in pressure that makes the star unstable and causes it to contract under its own weight. Eventually the process ignites runaway nuclear reactions that rip the star apart.
如果是普通恒星，带这么多电荷是不可能稳定存在的。
It is not possible for a normal planet to be stable when it brings so much electric charge.
采用非平衡动力学方法研究由CNO循环决定的恒星结构稳定性，本文得出：CNO循环自身是稳定的；
The method of nonequilibrium dynamics is used to study the stability of stellar structure, including chemical reaction, diffusion and convection. We find that CNO cycle is stable.
研究小组选择在猎户座的一个恒星形成区观测，他们认为氧气在一个温暖的不稳定的条件下将从尘埃和水冰中挥发出来。
The team chose a star-forming region in the constellation Orion, believing that oxygen would be "baked off" from the ice and dust in a warmer, more turbulent part of space.
研究小组选择在猎户座的一个恒星形成区观测，他们认为氧气在一个温暖的不稳定的条件下将从尘埃和水冰中挥发出来。
The team chose a star-forming region in the constellation Orion, believing that oxygen would be "baked off" from the ice and dust in a warmer, more turbulent part of space.
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