This Weird Star Type May Have Tricked Scientists For Years

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#astrum #astronomy #space #astrophysics #darkenergy #stars

[carmamd]

Thanks for these videos! I’m a 74y/o retired MD, with a lifelong love of math, physics, and esp. astrophysics, and never enough time or energy to study then being general college courses, until now. Your videos inspire and inform me❤❤

[muratarican]

If I had known that Astronomy classes were lectured the way you do in your episodes, I would have chosen astronomy as a career..
Beautiful work.

[BOEING--mhxm]

One of the few astronomy channels I watch on a daily basis

Keep up the good work

[douglasboyle]

One more interesting thing that you forgot to mention about Neutron Stars (which almost no one ever makes clear) is that they are almost pure neutrons - hence the name... but where did all the electrons and protons go that were in the star? Well once they get squeezed close enough to each other they combine and become more neutrons.

[Pearls_Have_Eyes]

i love how the more we find out about deep space the more questions it raises and the more we realize how little we know

[carsonfrith]

Always felt like astronomy pages overhype stuff but this one feels just right. Love that it’s trustworthy too just absolutely amazing

[stephenwise]

I'm going to have to watch this one a few times to let things sink in! Cheers Alex :)

[andreasboe]

Speculation of alternative explanations are always good. We haven't made any real progress in cosmology for a long time, so we need all the speculation we can find and let the ideas compete with one another and compare them with observations.

[LesterWayneDobos]

Wow. Fabulous video. Probably one of the most mind stimulating productions I have seen. Dark energy is the pressure which expands our universe, so I assume that black holes are definitely connected. No one wants to say we may be living in the equilibrium of a gravastar. Amazing concepts.

[petermarsh]

Dear Alex, I do appreciate your show and the enormous amount of work that you put into each episode. There is one criticism of today’s dialogue when about 1/3rd the way through you talked about “Heat coming from the sun”.

Heat is the progression of the vibration of molecules within gas, liquids or solids. The sun lives in a bath of vacuum and therefore heat cannot be emitted from the Sun’s surface. Radiation {eg Infrared EMR} can travel through a vacuum and in turn heats up gases, liquids and solids when it interacts with them on Earth. This is how heating of Earth happens but it is an indirect rather than a direct process. Cheers.

[IamGDuBs]

There has been so much new info coming out about black holes recently. It's a super exciting time to be intrested in this stuff. And From what I have heard other science channels say, James Webb is just getting started. the last year has been fine tuning it, and now we can get some very intresting data from it!

[thomassecurename]

Love ASTRUM. For non-scientists; I’ve read it take a million years for a photon to radiate outward from the sun’s center til we see it. If there is some truth, please explain. Thanks. Tom. Poulsbo, Washington

[rustyshackleford]

That is either a duck or an extremely dense object mimicking a duck.

Everything's funnier when you replace it with a duck, especially a rubber duck wearing a top hat.

[liamfoxy]

Now.. this may be stupid.. but what are the chances our universe is simply existing inside a developing Gravistar? It would explain the steady expansion rate, along with the tendency to vacuum. The curvature would also make sense. It is also maybe possible that the big bang was the infinity flipping from negative to positive? I don't like the idea, but it's a thought

[frankiethebear]

Alex, you are one of the most precious things in the Universe: An Educator. Thank you for all your work. 🙂

[luco]

I don't know why but I was thinking that every information you said just in the first 30 seconds of the video took Millennia to be discovered and making an astrophisicis of just 100 years ago or less listening to this 30 seconds would completelly blow his mind...

[michaelstriker]

I'm leaning toward 1 more kind of star, the quark dwarf. (Not necessarily different externally from black hole, but different internally.) Only works if there is quark-degeneracy pressure, and probably only works with neutrons stars close to the neutron-degeneracy limit. Pre-quark neutron star vacuums up gas (interstellar medium) until second collapse. Then quark degeneracy takes over for interior. (An extension of book, "The Dragon's Egg", where a crustquake and collapse caused a size reduction.) If a collapse is gentle enough, and quark degeneracy exceeds neutron degeneracy, a quarkstar is possible. Still could be invisible, but not nigh-singularity.

Just conjecture, though. While I've read of same-quark resistance to touching, I haven't read how close top and bottom quarks get in protons and neutrons.

[MemeAnt]

Quick note, betterhelp has done some shady stuff in the past, and I would recommend avoiding them in the future.
Love the content here, keep it up!

[johnkerr]

Very interesting, so, if we follow the naming convention for neutron stars, could a white dwarf then be called an electron star since it's balancing on the electron degeneracy pressure limit?

[robbierobinson]

Every time another Astrum video comes out, I just gravitate to it. This is another excellently presented, mind expanding topic. Astrophysics is getting weirder by the " - - -day, week, month or even year - - -". Are gravistars the universal version of antigravity generators?