Image credit: ESA/Hubble & NASA, of galaxy cluster LCDS-0829.

The Limits Of How Far Humanity Can Go In The Universe

If we look to the distant future, with unlimited technology, how far could we reach?

Ethan Siegel
Starts With A Bang!
5 min readMay 19, 2016

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“Even if I stumble on to the absolute truth of any aspect of the universe, I will not realise my luck and instead will spend my life trying to find flaws in this understanding — such is the role of a scientist.” -Brian Schmidt

If you peer out into the depths of space — at the vast expanse of stars, galaxies, and even the leftover glow from the Big Bang itself — you might think that if humanity can understand the laws of nature and create a good enough technology, there are no limits to what we can explore. If we were to develop nuclear fusion technology, antimatter storage capabilities, or even the ability to harness dark matter as we traveled, we could unlock the potential for interplanetary, interstellar or even intergalactic travel. By accelerating ourselves over months or even years to reach near-light speeds, we could even reach our target destination within a single human lifetime.

Image credit: the DEEP-laser sail concept, via http://www.deepspace.ucsb.edu/projects/directed-energy-interstellar-precursors, Copyright © 2016 UCSB Experimental Cosmology Group.

Yet even if we imagine a future where we can do exactly that, there are still parts of the Universe that will…

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Ethan Siegel
Starts With A Bang!

The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, science communicator & NASA columnist.