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PBS Space Time
Citizen Science
Season 4
Episode 4
The professional astronomer or astrophysicist is a pretty recent phenomenon. In the past, astronomy was often performed by nobility and extremely enthusiastic amateurs. Although it seems like the scientific exploration of our universe is now in the hands of full-time career astro-professionals, a ton of really valuable science is still done by people with proper day jobs.
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19:02
The universe expands faster. “Dark energy” may not be constant after all.
16:26
There’s a new generation of experiments that may unlock the gravity particle.
18:33
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18:42
Gravitons, the particle of quantum gravity, may be impossible to detect.
25:02
2025 was the international year of quantum science, but today we examine its origins.
21:17
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21:31
What is the graviton, and does it even exist?
19:52
Antimatter drives sound like science fiction, but they may not be as far as you think.
23:22
Does quantum mechanics allow the future to retroactively influence the past or not?
19:14
Life on mars could result in humanity’s destruction via Fermi Paradox.
19:01
How to build a particle collider the size of the solar system.
12:39
One of the most important reasons we go to space is to know our own planet better.