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danR replied to the thread Hubble trouble or Superbubble? Astronomers need to escape the 'supervoid' to solve cosmology crisis.The article is interesting but seems rather repetitious. I feel it would be more lucidly presented in four or five paragraphs. -
danR reacted to Don M's post in the thread Hubble trouble or Superbubble? Astronomers need to escape the 'supervoid' to solve cosmology crisis with
Like.
The Universe's "incredibly rapid rate" of expansion depends on perspective. The current rate is ~7% larger every billion years. -
danR replied to the thread Why we can't just name a quasi-moon 'Moony McMoonface.Because they just plain won't listen to you. I thought a certain Mars Rover in a naming contest should be called Dusty McDustface. But...
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danR replied to the thread Dead stars within supernova explosions could solve the dark matter mystery in 10 seconds.How about, instead of looking for one signature from one uncommonly-captured phenomenon indicating one class of conjectured DM, they...
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danR reacted to fj.torres's post in the thread Cataclysmic' solar storm hit Earth around 2687 years ago, ancient tree rings reveal with Like.
Some of the "great filters" assume a *technological* civilization was able to rise up to start with. A number of the emerging hurdles...
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danR reacted to fj.torres's post in the thread Cataclysmic' solar storm hit Earth around 2687 years ago, ancient tree rings reveal with Like.
The sun is to all appearances a relative calm and stable star when compared to the majority of similar stars. Red dwarfs in particular...
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danR replied to the thread Cataclysmic' solar storm hit Earth around 2687 years ago, ancient tree rings reveal.The answer to the Fermi Paradox, rather than being a needle in a haystack, is turning into an embarrassment of riches: Asteroid strike...
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danR replied to the thread What time is SpaceX's Starship Flight 6 launch test on Nov. 18?.They updated everything in the article except the one "Monday" instance in the subtitle.
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danR reacted to jmurtari's post in the thread What time is SpaceX's Starship Flight 6 launch test on Nov. 18? with Like.
Please double check your lead lines, it says: "SpaceX's sixth Starship test flight is set for no earlier than Monday afternoon (Nov...
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danR replied to the thread Blue Origin stacks huge New Glenn rocket ahead of 1st launch (photo).As hard as they have tried, New Glenn will still put less mass into LEO than SpaceX' old Falcon Heavy, with respect to full reusability.
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danR replied to the thread Boom Supersonic's XB-1 jet sets new speed record during 7th test flight.Approximately Mach 0.9, at 23,000 feet. I appreciate that you associated the speed of sound with temperature, rather than density: an...
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danR replied to the thread Black holes that form in 'reverse Big Bang replays' could account for dark energy.Nice to see a concept that removes the 'need' for singularities altogether, although it isn't the only one. Time will tell whether the...
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danR replied to the thread Black holes that form in 'reverse Big Bang replays' could account for dark energy.I think the article is adequate for its purpose. Those who want to enquire further can turn to the papers themselves. Whether there is a...
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danR replied to the thread Fall back to Earth with Falcon 9 payload fairings in stunning new SpaceX video.In any event I'm not seeing any video.
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danR replied to the thread Fall back to Earth with Falcon 9 payload fairings in stunning new SpaceX video.What 'video'?
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