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Expansion
Starts With A Bang!
The Universe is out there, waiting for you to discover it.
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Expansion
Ethan Siegel
in
Starts With A Bang!
Jul 12
Ask Ethan: Is it all-or-nothing for the expanding Universe?
On the largest of cosmic scales, the…
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345
5 responses
Ethan Siegel
in
Starts With A Bang!
Nov 10, 2023
Ask Ethan: What drives the expansion of the Universe?
If the Universe is expanding, and the expansion…
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614
12 responses
Ethan Siegel
in
Starts With A Bang!
Aug 24, 2023
If the Hubble tension is real, what’s the solution?
Two fundamentally different ways of measuring the…
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850
13 responses
Ethan Siegel
in
Starts With A Bang!
Jan 13, 2023
Ask Ethan: Is the Universe’s expansion accelerating or not?
Yes, dark energy is real. Yes, distant…
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459
9 responses
Ethan Siegel
in
Starts With A Bang!
Jul 1, 2022
Ask Ethan: How can “the Hubble constant” be a constant?
The Universe is expanding, and the Hubble…
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208
3 responses
Ethan Siegel
in
Starts With A Bang!
Dec 21, 2021
Cosmology’s biggest conundrum is official, and no one knows how the Universe has expanded
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933
10 responses
Ethan Siegel
in
Starts With A Bang!
Nov 30, 2021
Does the expansion of the Universe break the speed of light?
Just 13.8 billion years after the hot Big…
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572
11 responses
Ethan Siegel
in
Starts With A Bang!
Nov 4, 2019
Astronomically Rare ‘Double Lens’ Yields Best Single System Measurement Of Cosmic Expansion
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367
1 response
Ethan Siegel
in
Starts With A Bang!
May 5, 2018
Ask Ethan: How Big Will The Universe Get?
Dark energy means that the Universe’s expansion is…
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1.93K
14 responses
Ethan Siegel
in
Starts With A Bang!
Feb 17, 2018
Ask Ethan: How Do We Know Space Is Expanding?
The Universe may defy our intuition, but that’s what…
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1.7K
18 responses