Helio's latest activity
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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
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A new device uses quantum optics to filter out starlight in real time — bringing scientists closer to directly observing Earth-like... -
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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Helio replied to the thread Is there really dark matter?.What may be confusing is that the observations, though objective, are indirect evidence for DM. We always prefer direct observations of...
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Helio replied to the thread Is there really dark matter?.It was, actually, a while back (1933) that the strangeness was first detected. Zwicky found that galaxies revolved within a cluster...
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Helio replied to the thread Is there really dark matter?.No. Both Newton and Einstein presented frameworks of how matter is responsible for gravity. [Energy also qualifies as “matter”, thanks...
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Yes. Of course, I was very young when he was around. But I well remember Ann Hathaway giving us toffee apples and coke when we were...
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Helio replied to the thread Is there really dark matter?.Yes, more directly, DM itself. The objectivity of a rose negates whatever inappropriate label is forced upon it. Eventually, a more...
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Helio replied to the thread Is there really dark matter?.Hint…”A thoughtarose…”
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Helio replied to the thread A Critical Examination of Cosmic Expansion and the Present-Day Origin of the CMB.The SN study, by two independent teams, was the evidence of the discovery. The more recent studies of the CMBR data may, or may not, be...
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Helio replied to the thread A Critical Examination of Cosmic Expansion and the Present-Day Origin of the CMB.DE evidence is more abundant today… https://news.uchicago.edu/explainer/dark-energy-explained#how “Since [SNstudy]then, other...
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