The Truth About Mass and Movement w/ Neil deGrasse Tyson #science #astronomy #shorts

Added: 2026-05-27

[00:00:00]Greetings, Dr. Tyson and unnamed co-host, hopefully Lord Nice.

[00:00:04]>> All right.

[00:00:05]>> All right. Jordan from Boston here. I understand an object's mass to be the sum of its invariant mass, >> Yes.

[00:00:11]>> rest energy, Yes.

[00:00:13]>> and its momentum.

[00:00:15]>> Yes.

[00:00:16]>> A photon, because it has no mass, must then be pure movement, momentum for energy.

[00:00:24]>> Okay. Here's my question. Okay, good, you have one. He says, uh >> [laughter] >> Thought he was just showing off.

[00:00:30]>> Yeah, there's a little bit of that, too, but that's fine.

[00:00:32]>> but Nothing wrong with showing off if you got it.

[00:00:34]>> He says, >> If you got it, flaunt it.