Can moons orbit moons? — the poem

Can moons orbit moons? wondered Juna and I.
Some planets have moons, you know, up in the sky
But none of those moons has its own moon around it.
When Juna’s son learned this he just was astounded!

Vega: a planetary poem

  Here is a tale ’bout a bright star named Vega. For years, astronomers have combed through their data and discovered that Vega is more than a star. It’s surrounded by dust clouds: one near and one far. Next to the star is some dust that’s quite hot. We’ve only just found it. There isn’t…