The problem is that most of the exoplanets detected to date, being gas giants, are too close to their stars to have been born there.

问题是，迄今观测到的大部分外部行星——气态巨行星，太靠近他们的起源恒星，不可能在那里诞生。

youdao

Note, though, that any object with lots of mass would be a problem, including normal everyday stars, and they are a lot more common!

不过，请注意，任何大质量物质都会惹麻烦，其中包括平时常见的恒星，它们有许多共同之处！

youdao

That presents the Big Four with a particular problem: how to identify future stars among the mass of raw recruits.

这表明四大面临一个特殊的问题：如何在众多的新招聘成员之中辨别出未来的主角。

youdao

Yet it seemed to those seeking to solve the longitude problem that the only solution was in the moon and stars.

VOA: special.2010.07.14

While scientists were studying the stars and moon to solve the longitude problem, a man named John Harrison was working on another project.

VOA: special.2010.07.14

Alas, the problem lies not in the stars, but in ourselves, and with men who rather then admit their policies were wrong, will double down into making Supply-Side tax Cuts an IDEOLOGY!!!

FORBES: Think Social Security's Trust Fund Is A Scam? Medicare Has One Too.

That presents the Big Four with a particular problem: how to identify future stars among the mass of raw recruits.

ECONOMIST: Talent management

The problem is that brown dwarfs have been discovered orbiting other stars, and it is thought that planets can sometimes be ejected from their natal solar systems as a result of gravitational interactions, and may thus be found drifting in space.

ECONOMIST: Twinkle, twinkle, giant planet