Vincenza I. Bartl
The Agent That Works Harder After The Closing Papers Are Signed.
Saturday, February 10, 2018
Ask Ethan: How Do We Know Space Is Expanding?
Galaxies are all moving away from us, but why does that imply that space itself is expanding?
from Forbes Real Time https://www.forbes.com/sites/startswithabang/2018/02/10/ask-ethan-how-do-we-know-space-is-expanding/
via
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