Today, we're bringing you the final installment of our space summer series ... with the end ... of EVERYTHING. Will the universe end in a huge cosmic unraveling? A slow and lonely dissolution? Or a quantum-level transition that breaks the laws of physics? Theoretical astrophysicist Katie Mack breaks down three possible scenarios for how the universe as we know it will finally come to an end.

To celebrate the end of our Space Camp series, we also made a QUIZ! Check it out at npr.org/spacecamp.

Questions? Comments? Existential dread or excitement? Email us at [email protected] — we'd love to hear from you!

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