Recent content by rod

Properties for WASP-121 b and host star are found here, https://exoplanet.eu/catalog/wasp_121_b--2410/ The exoplanet is some 1.184 Mjup and star is 1.353 solar mass. 0.02544 AU is where the semi-major axis is seen. That is very close to the host star, nothing like our solar system configuration.

Interesting, WASP-121 b must migrate inwards and then stop leaving it where we see it today according to the report ( no in-situ formation). Exactly where it started at relative to host star in AU, how long it took to migrate inwards, and then stop where it is at today, I did not read. We have...

Helio et al, I think Harry Costas has a point in post #2, "For some reason they are trying to fit the narrative to the BBT." Population III stars have been invoked for BB model at least the past 50 years or so. Red dwarf stars were part of the early study into Population III stars because they...

Space.com reported, “This previous record galaxy has a redshift of z =14.32, while MoM z14 has a redshift of z = 14.44.” My note, 3D space is expanding about 2.4 x c where this object would be today (using default H0 in the cosmology calculator cited) where its comoving radial distance is nearly...

Helio et al. If astrobiology has difficulty explaining and finding exolife here in our MW, perhaps the multiverse can resolve all questions about life here too :) https://phys.org/news/2025-05-habitability-earth-likelihood-life.html https://arxiv.org/abs/2505.20557

Helio, when it comes to the exoatmospheres site, these are the exoplanets listed as temperate type. Still waiting to see Earth 2.0 and life out there confirmed :) Iac_exoplanet_atmospheres unique type QueryIac_exoplanet_atmospheres unique type Query name type mass radius mass_earth...

Helio, I use MS Office 365 and MS Excel. I opened with no problem into Excel using Data and importing using From Text/CSV option. Imports and save nicely to Excel file with column headings. Multiple rows for some exoplanets due to variations in some properties reported like molecules.

Helio et al. When it comes to exoplanets with atmospheres documented, I use this site, https://research.iac.es/proyecto/exoatmospheres/index.php "As of today, 269 different planets have been analyzed and 64 different molecules have been detected."

FYI. IMO, K2-18 b is the media grabbing exoplanet with possible life like we see on Earth according to a variety of claims published and now rebuttals. IMO, this indicates to me there should be a SOR or System Of Record that shows and tracks all of these claims and the authoritative top ten list...

Helio, I checked out your Top Ten list, nice :) The .eu site now has filters showing exoplanets of different sizes you can filter on. For the Mercury or so group, 228 show up. Your radius are all large than earth size, the 228 radii range 0.285 earth to 0.996 earth. https://exoplanet.eu/home/...

Helio et al. When it comes to publishing a top ten list of exoplanets that are earth-like or perhaps support biological life, the last list I read was back in January 2022 at space.com. The 10 most Earth-like exoplanets, https://www.space.com/30172-six-most-earth-like-alien-planets.html I am...

Others are reporting a bit more skeptical thinking about life on K2-18 b now. Hopes for alien life dim as doubts emerge over exoplanet K2-18b chemical signals, https://phys.org/news/2025-05-alien-life-dim-emerge-exoplanet.html My note, exoplanet properties for K2-18 b can be seen here...

The article states, "We don't know if any exoplanets host life. We have yet to find an Earth twin with the right orbit around a sun-like star, but we have come close." I do not know that abiogenesis can take place on any exoplanet or those with higher surface gravities, e.g. 3 earth mass and...

Interesting report. The exoplanet.eu site shows 7444 exoplanets now. The NASA site shows 5867. IMO, the direct way to test science on these exoplanets, is to travel there and measure :) Space.com report concludes, "These new insights at the intersection of chemistry and physics are thus helping...

"The team divided the observational subjects into two age groups: young planets (10 million – 100 million years old) and intermediate-age planets (100 million years to 1 billion years old). They then compared the occurrence rates of these planets using data from NASA's TESS, or Transiting...