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Helio
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Helio
reacted to
Astraeus's post
in the thread
Be very careful of using the word "zero".
with
Like
.
I can certainly appreciate the definitional distinctions being explored here. I think semantic or otherwise, it is valuable to...
Yesterday at 12:20 PM
Helio
replied to the thread
Be very careful of using the word "zero".
.
Thanks Cat. Zero has had a twisted history and it seems many like to keep twisting. ;) An easy way to think of zero is from a physical...
Sunday at 5:00 PM
Helio
reacted to
Catastrophe's post
in the thread
Be very careful of using the word "zero".
with
Like
.
I have started this thread here, because zero is inextricably linked with infinity and an "infinite" "Universe". Yes, we have to watch...
Sunday at 4:50 PM
Helio
replied to the thread
JWST spies frigid alien world on bizarre orbit: 'One of the coldest, oldest and faintest planets that we've imaged to date
.
Yes, and if it is aligned to the galactic plane, it's likely much harder to find as well. 15 AU isn't all that unusual of a distance...
Jun 14, 2025
Helio
reacted to
rod's post
in the thread
JWST spies frigid alien world on bizarre orbit: 'One of the coldest, oldest and faintest planets that we've imaged to date
with
Like
.
Space.com reported, "But, unlike the flat, well-ordered orbits of planets in our solar system, the 14 Herculis system is dramatically...
Jun 14, 2025
Helio
replied to the thread
Coating satellites with super-black paint Vantablack could help fight light pollution crisis
.
Has black paint be used in the past? Yes it has. Black paint does, admittedly, absorb light but it is a far better radiator as well...
Jun 13, 2025
Helio
replied to the thread
Coating satellites with super-black paint Vantablack could help fight light pollution crisis
.
The problem has been overexposure of images by bright satellite streaks. Dark streaks would have no effect for the long exposures.
Jun 13, 2025
Helio
reacted to
Unclear Engineer's post
in the thread
Astronomers see the 1st stars dispel darkness 13 billion years ago at 'Cosmic Dawn
with
Like
.
But redshift and lower density did not happen faster than light can be absorbed. And from what I have read, the CMBR frequency...
Jun 12, 2025
Helio
replied to the thread
Astronomers see the 1st stars dispel darkness 13 billion years ago at 'Cosmic Dawn
.
This topic is often poorly explained and I still don't have a clear understanding of how we see light from the earliest moments...
Jun 12, 2025
Helio
posted the thread
7500 Milestone for Confirmed Exoplanets!
in
Astronomy
.
Astronomers have reached 7500 in the number of exoplanet discoveries. This is from exoplanet.eu, which, admittedly, takes in almost all...
Jun 12, 2025
Helio
replied to the thread
Astronomers see the 1st stars dispel darkness 13 billion years ago at 'Cosmic Dawn
.
Good catch. The article seems false here. The Dark Ages following the first Reionization (CMBR light) came as a result of the newly...
Jun 11, 2025
Helio
reacted to
Admin's post
in the thread
Cosmic rings reveal new planet being born
with
Like
.
Star RIK 113 is busy making a new planet in its protoplanetary disk as seen in this new image from the Very Large Telescope. Cosmic...
Jun 11, 2025
Helio
replied to the thread
Cosmic rings reveal new planet being born
.
It’s rare to see these except from IR space scopes. But what’s it showing us? Are protoplanets in the void ring, having accreted...
Jun 11, 2025
Helio
replied to the thread
A hidden 'super-Earth' exoplanet is dipping in and out of its habitable zone
.
Yeah. “Earth-like” is a stretched term to represent the likely orbital environment for an exo about the size of Earth. The advance in...
Jun 10, 2025
Helio
replied to the thread
A hidden 'super-Earth' exoplanet is dipping in and out of its habitable zone
.
Here's a summary that shows the more Earth-like exoplanets by known size...
Jun 10, 2025
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