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billslugg's latest activity
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billslugg
reacted to
Admin's post
in the thread
Why do some planets have moons? A physics expert explains why Earth has only one moon while other planets have hundreds
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Like
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Why is that some planets, such as Saturn, have more than a hundred moons, while others, such as Venus, have none? Why do some planets...
Jun 29, 2024
billslugg
replied to the thread
I have a dumb question
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But simple dirt is made of high Z atoms and will not shield. The high speed ionized atomic nuclei simply bounce off them without losing...
Jun 29, 2024
billslugg
reacted to
Helio's post
in the thread
Exoplanet Stats
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Like
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I was curious regarding the current number of star systems having more than one exoplanet. Here it is... There are three systems with...
Jun 29, 2024
billslugg
replied to the thread
The gorgeous Ring Nebula makes a stunning skywatching sight this week
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The Maksutov-Cassegrain has a central obstruction, so the 152 mm diameter is not "clear".
Jun 28, 2024
billslugg
replied to the thread
I have a dumb question
.
An inflateable habitat on the Moon would not provide radiation shielding. On Earth, we have an atmosphere of low molecular weight gases...
Jun 28, 2024
billslugg
reacted to
Helio's post
in the thread
The James Webb Space Telescope never disproved the Big Bang. Here's how that falsehood spread.
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Like
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Yes. Planck demonstrated there is no time unit less than that, yet at the t=0 beginning something happened. I wonder if quantum...
Jun 28, 2024
billslugg
replied to the thread
The gorgeous Ring Nebula makes a stunning skywatching sight this week
.
"Lyra, it is still very well placed for viewing, now more than two weeks into the autumn season." - Joe Rao, June 28, 2024 I think the...
Jun 28, 2024
billslugg
reacted to
Catastrophe's post
in the thread
The James Webb Space Telescope never disproved the Big Bang. Here's how that falsehood spread.
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Like
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I did send off a quick email, but, sadly, as yet, I have had no reply. Perhaps we are alone on this one? Cat :)
Jun 28, 2024
billslugg
replied to the thread
The James Webb Space Telescope never disproved the Big Bang. Here's how that falsehood spread.
.
Sure, limitless cycles might simply bounce off that point, I suppose. The only problem with a cyclic universe is that it is expanding at...
Jun 28, 2024
billslugg
replied to the thread
The James Webb Space Telescope never disproved the Big Bang. Here's how that falsehood spread.
.
We cannot get any information about the BB prior to 10^-43 seconds. At that time, every particle was so massive, due to its energy, that...
Jun 28, 2024
billslugg
reacted to
Helio's post
in the thread
Exoplanet Stats
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Like
.
We are seeing an abundant number of exoplanets become confirmed, and our numbers for those in their HZ are also increasing. Hats off...
Jun 27, 2024
billslugg
replied to the thread
NASA selects SpaceX to build deorbit vehicle for International Space Station
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In order to deorbit something from LEO, you only need to boost it about 20 m/s. The space tug would be designed to handle that. In order...
Jun 27, 2024
billslugg
replied to the thread
NASA selects SpaceX to build deorbit vehicle for International Space Station
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The delta V to put something in LEO is 9256 m/s. The delta V to get to lunar orbit from LEO is 3940 m/s. It would take 40% of what...
Jun 27, 2024
billslugg
reacted to
Helio's post
in the thread
Question
our universe is our god
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Like
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IMO, if the trillions of degrees was essentially homogeneous, though the quantum fluctuations were a factor, then this could be seen as...
Jun 26, 2024
billslugg
replied to the thread
Could we launch resources from the moon with electromagnetic railguns?
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I agree, there is no reason for humans in deep space. In LEO and on the Moon, yes, but long term travel outside very thick radiation...
Jun 26, 2024
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