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Helio replied to the thread Is there really dark matter?.Do black holes exist? None have ever been observed, right? -
OK. As you say "fun, ifs", so I am not being critical - just commenting :) You cannot apply PV=nRT to open systems. After you have...
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Helio replied to the thread Is there really dark matter?.No. "excess gravity effects require an explanation, these effects are caused by DM, therefore objective evidence?" You're trying to...
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Helio replied to the thread Scientists find rare double-star system where one star orbited inside the other.Interesting. I was going to suggest a sooner than later dynamic merger, but pulsars rotate rapidly, so perhaps the tidal friction will...
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Helio reacted to Admin's post in the thread Scientists find rare double-star system where one star orbited inside the other with
Like.
Astronomers may have discovered a rare type of binary star system, where one star used to orbit inside its partner. Scientists find... -
"AFAIK, the only objective evidence comes from only gravitational effects by DM." Taking into account your previous posts are you...
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Helio replied to the thread Is there really dark matter?.Yes, this is DM in a nutshell. Scientists have simply put a label (ie DM) on whatever it is that is causing the excess gravitational...
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Helio replied to the thread Is there really dark matter?.AFAIK, the only objective evidence comes from only gravitational effects by DM. But there are many numerous hypotheses that are trying...
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Helio reacted to Admin's post in the thread Astronomers want direct images of exoplanets. They may need 'quantum-level' tech to get them with Like.
A new device uses quantum optics to filter out starlight in real time — bringing scientists closer to directly observing Earth-like...
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Helio replied to the thread Astronomers want direct images of exoplanets. They may need 'quantum-level' tech to get them.It seems this technique greatly enhances noise and glare elimination to allow the exoplanet to become visible. It seems, however, that...
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Helio replied to the thread Why Galaxies Are Not Expanding (discussion with Grok, Elon Musk's AI device).A few years ago, I asked AI (ChatGPT, IIRC) what the Sun's true color is if observed from above our atmosphere. It assumed all the...
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Helio replied to the thread Why Galaxies Are Not Expanding (discussion with Grok, Elon Musk's AI device).That's insightful. Astronomers have indeed noticed the time difference (redshifts) due to the path length differences around the galaxy...
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Helio replied to the thread Take a closer look at the moon and galaxies with the SkyMaster 15x70 binoculars from Celestron: Now only $76!.I recommend a tripod. Things get shaky at 15x.
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Helio replied to the thread James Webb Space Telescope discovers an alien planetary system's icy edge.Some models will favor the idea of the presence of larger planets closer to the host star. These large planets are required to toss...
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Helio replied to the thread Is there really dark matter?.Observational evidence of the influence of DM on stars and galaxies since 1933 is likely in the thousands. Whatever DM actually is, its...
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