Q
How will the universe end?
A
Expert Answer
Leading theories: Heat Death (gradual cooling as entropy maxes out—most likely given current data), Big Crunch (eventual collapse if dark energy weakens), Big Rip (accelerating expansion tears everything apart), and Vacuum Decay (a bubble of lower-energy vacuum destroys everything at light speed).
Key Insight
Leading theories: Heat Death (gradual cooling as entropy maxes out—most likely given current data), Big Crunch (eventual collapse if dark energy weakens), Big Rip (accelerating expansion tears everything apart), and Vacuum Decay (a bubble of lower-energy vacuum destroys everything at light speed).
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