EPILOGUE : FROMOUR GALAXY’S
PAST TO ITS FUTURE
The previous chapters have been dedicated to the distant past of our cosmic ancestry, when the building blocks of the Milky Way galaxy were assembled in the form of the first galaxies. The laws of physics also allow us to forecast how our Galaxy and its environment will likely change in the future. Our cosmic perspective would be incomplete without a glimpse into this future.
Previous generations of scholars have occasionally wondered about the long-term future of the Universe or in Biblical Hebrew, the forecast for acharit hayamim (“the end of times”). For the first time in history, we now have a standard cosmological model that agrees with a large body of data about the past history of the Universe to an unprecedented precision. This model also makes