No one can say for sure, hopefully for a much, much longer time. However, in 4 billion years the Sun will start to die and engulf the Earth, the moon might fly out of orbit and the Andromeda galaxy with collide with ours. If we survive the climate change crisis, we will then have to make our home planet last as long as possible, and in the meantime continue searching for new worlds, and even universes to inhabit. This is because just like the Earth, the Sun and the Milky Way galaxy, the universe may have an expiry date as well! Yikes/Cool!
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