A new paper suggests a new possibility for interstellar travel that won't rely on faster-than-light speeds or massive colony ships.
Billions of years in the future our Sun will leave its main sequence. At that point, it will become a red giant. When that happens, Earth and several other planets will be swallowed up and destroyed. The hope, for many, is that by that time humans will have advanced enough to have massive spacecraft capable of carrying us elsewhere. But, what if we don’t?suggests we might not need spaceships for interstellar travel after all. Instead, we could use rogue planets.
Published in early April, the paper was written by Irina K. Romanovskaya. Romanovskaya suggests that migrating extraterrestrial civilizations could have already experienced planet-killing events like their star dying. As such, it is possible that they have used rogue planets as living, organic spaceships to travel the universe.
The idea is predicated on the fact that interstellar travel would require technology capable of faster-than-light travel. Or, if that wasn’t possible, a spacecraft large enough for generations of humans to live out their lives during transit. Both options are unlikely for centuries to come, especially based on how limited our space technology is now.
The paper, overall, is more meant to help with the search for extraterrestrial life, but the propositions within it could implicate some amazing things.
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