The
Andromeda galaxy lies just beyond (...OK, about 2.5 million light-years beyond) our galaxy, the Milky Way. For the past hundred years or so, scientists thought these galaxies existed in a long-term dance of doom — destined to crash into one another and combine into one big galactic soup. But today on the show,
Regina and computational astrophysicist
Arpit Arora explain why a recent paper out in the journal
Nature Astronomy suggests this cosmic game of bumper cars may never come to a head at all.
Interested in more space episodes? Email us your question at shortwave@npr.org.
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