Torbjorn Larsson's latest activity
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TTorbjorn Larsson reacted to billslugg's post in the thread Voyager 1 spacecraft phones home with transmitter that hasn't been used since 1981 with
Like.
The gravitational field of the Sun will affect EM waves slightly. The effect on the outgoing signal is exactly balanced by the effect on... -
TTorbjorn Larsson reacted to George²'s post in the thread Voyager 1 spacecraft phones home with transmitter that hasn't been used since 1981 with Like.
1. Answer Much more energy per received and transmitted bit of information. Data is digital not analogue. 2. Perhaps you imagine the...
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TTorbjorn Larsson replied to the thread Scientists found one of the largest carbon-based space molecules ever. Here's why that's a big deal.Carbon based compounds, "organics", production is ubiquitous in the universe, starting with carbon stars atmospheres and on. As long...
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TTorbjorn Larsson reacted to 24launch's post in the thread Euclid 'dark universe' telescope reveals 1st breathtaking images from massive 'cosmic atlas' map with Like.
Those images are just amazing, especially with the 3 zoom ins! I was curious how Euclid and Gaia differ and complement each other...
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TTorbjorn Larsson replied to the thread SpaceX plans to catch Starship upper stage with 'chopsticks' in early 2025, Elon Musk says.This and Axiom presenting a lunar excursion suit which is in pressure testing are nice pointers to an exciting future in space. Both...
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TTorbjorn Larsson replied to the thread Gaia space telescope discovers 55 'runaway' careening away from stellar cluster at 80 times the speed of sound.Seems it could help with ionization, since early galaxies barely produced enough escaping photons. There are sound wave analogs in the...
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TTorbjorn Larsson replied to the thread Nearby exoplanet is a 1st-of-its-kind 'steam world,’ James Webb Space Telescope finds.GJ 9827 d is a sub-Neptune (1.98 Earth radius) just above the radius valley, but it is interesting even so. It is a complicated issue:
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TTorbjorn Larsson reacted to COLGeek's post in the thread Nearby exoplanet is a 1st-of-its-kind 'steam world,’ James Webb Space Telescope finds with Like.
Why and who is they? Assuming such a discovery was made. Discounting that JWST could see that level of detail.
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TTorbjorn Larsson replied to the thread James Webb Space Telescope finds supernova 'Hope' that could finally resolve major astronomy debate.As far as I can see this lone data point is too uncertain to claim that it is in tension with other methods. The lower limit at 69.9...
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TTorbjorn Larsson replied to the thread We are close:' SETI astrobiologist Nathalie Cabrol on the search for life.Cabrol has made good work on extremophiles. Relevance? Astrobiology is so much more than climate modelling of habitable planets...
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TTorbjorn Larsson replied to the thread Where did Mars' atmosphere go? Scientists say it may be 'hiding in plain sight.Nice! That may solve that mystery. The induced field protects somewhat from the solar wind but the atmosphere is stripped...
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TTorbjorn Larsson reacted to Mex's post in the thread Where did Mars' atmosphere go? Scientists say it may be 'hiding in plain sight with Like.
Sure it did. We know that Mars had a much denser atmosphere than it does today because we've found iron meteorites on the surface of...
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TTorbjorn Larsson reacted to Helium3's post in the thread Record-breaking Milky Way map showcases 1.5 billion objects: 'We have changed the view of our galaxy forever with Like.
Planetary Nebula are not formed by supernova explosions. They are created by a red giant puffing off its outer atmosphere while the...
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TTorbjorn Larsson replied to the thread That's weird': James Webb Space Telescope spies a strange galaxy outshining its stars.From https://scitechdaily.com/webbs-unprecedented-discovery-potential-missing-link-to-first-stars-in-the-universe/: This comparison of...
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TTorbjorn Larsson replied to the thread Hubble Space Telescope suggests our ancient universe was surprisingly crowded with supermassive black holes.No. This work suggests the supermassive black hole seeds arose from the collapse of the first generation extra massive stars. The light...
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