There Was a Planet That Swallowed a Moon

Podcast: Star Trails: From Backyard Astronomy to Cosmic Wonder · Single Malt Sky

Opublikowano: 2026-09-27

What if Venus once had a moon, and then destroyed it? A new study suggests that under plausible conditions, an ancient Venusian moon could have slowly migrated inward, crossed the Roche limit and ultimately been torn apart or swallowed by the planet. And Venus may not be the only hungry object in our cosmic neighborhood: another recent study explores whether the young Sun could have consumed a super-Earth, leaving subtle chemical and structural fingerprints behind billions of years later. This week on Star Trails, we're following a cosmic version of the old nursery rhyme "There...