Should Eris, and many other objects circling the sun beyond Neptune's orbit?

厄里斯和许多其他在海王星轨道绕着太阳转动的天体，又该不该是行星呢？

youdao

Now, four centuries later, we know that the Earth is a small planet circling a minor sun on the edge of just one of an estimated 125 billion galaxies.

而四个世纪之后的今天，我们已经知道了地球只是围绕着一颗并非显赫的太阳旋转的小小星球，我们的太阳处在银河系的一隅，而据科学家估算，这样的银河系大约有一千二百五十亿个。

youdao

With just four months of data, astronomers have found evidence for more than 1,200 planets circling stars other than the sun.

仅基于4个月搜集的数据，天文学家便获得了证据显示有超过1200个行星围绕着太阳以外的恒星旋转。

youdao

The American space agency's Dawn spacecraft began circling Vesta, a member of the asteroid belt that orbits the sun.

VOA: special.2011.07.27

In one sense, those excess reserve dollars are trapped at the Fed, like asteroids endlessly circling the Sun.

FORBES: Excess Reserves Are The $1 Trillion Reminder Of Crisis

It is not circling the Earth but orbits a point in the Sun-Earth system called the second Lagrange point.

CNN: Better 'baby picture' of universe emerges