The Universe is already 13.8 billion years old, and the most widespread idea among the scientific community for explaining the birth of our physical reality is the Big Bang Theory. While Einstein’s General Relativity predicts the Big Bang as a suitable explanation for how the Universe was born, there was plenty of misunderstanding about how our Cosmos will end.
There were plenty of theories describing the Cosmos’ hypothetical death: The Big Crunch, The Big Freeze, and more. What’s for sure is that the Universe will surely end someday, but the good news is that it won’t happen for at least the next 30 billion years. Although nobody would mind living that long, we’re sorry to express our skepticism about the chances of humanity to find the secret for eternal youth.
Stellar deaths will represent the final episode
Without a star’s energy, there would be no chance for life to exist in any form. Planets would remain desolated and as utmost wastelands. Cold stellar remnants called black dwarfs will explode in a spectacular series of supernovae, and star rebirth won’t be possible anymore in the absence of enough fuel. This is the grim scenario that a new study supports.
The astrophysicist Matt Caplan from the Illinois State University says that after exhausting their thermonuclear fuel, stars with reduced mass like our Sun don’t pop off in supernovae. Instead, they slowly purge their outer layers and leave behind a core known as a white dwarf.
It’s uncertain if we should understand the end of the Universe as only the quench of all the existing stars or the utmost annihilation of all matter, time, and space. Without space, there wouldn’t be room for the other two components. But unfortunately or not, it doesn’t seem to fit in the human mind the concept of absolute nothingness.