charliebrown
Justified & Ancient
- Joined
- Nov 2, 2020
- Messages
- 4,247
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When I was young, Flash Gordon was one of my favorites TV shows with Buster Crabbe.
Arecibo has completely collapsed
https://weather.com/news/news/2020-12-01-arecibo-observatory-radio-telescope-collapses
FULL STORY: https://www.sciencealert.com/destro...s-final-asteroid-warning-after-fatal-collapseDestroyed Observatory Issues Final Asteroid Warning After Fatal Collapse
After collapsing into pieces in December 2020, the mighty Arecibo Observatory has a final parting gift for humanity – and it's a doozy.
Using data collected by Arecibo between December 2017 and December 2019, scientists have released the largest radar-based report on near-Earth asteroids ever published.
The report, published September 22 in The Planetary Science Journal, includes detailed observations of 191 near-Earth asteroids, including nearly 70 that are deemed "potentially hazardous" – that is, large asteroids with orbits that bring them within 4.65 million miles (7.5 million kilometers) of Earth, or roughly 20 times the average distance between Earth and the Moon.
Fortunately, none of these newly described asteroids pose an immediate threat to Earth; according to NASA, our planet is safe from deadly asteroid impacts for at least the next 100 years. ...
The chances of anything coming from Mars are a million to one...It is a good time for Martians to come over to visit !
Makes you realise how low the Moon's albedo is (0.12)
That's right. The Moon is about as dark as road asphalt. Amazing that it looks so bright in the night sky, but if we were to paint it white it would look a lot brighter.Makes you realise how low the Moon's albedo is (0.12)
To be fair, we would only need to paint the half that faces us, white.if we were to paint it white
I'm not paying for the paint and to be pendantic it's more than half because of libration.To be fair, we would only need to paint the half that faces us, white.
Off you go. Here's a 4 inch brush.
View attachment 61272
Might need more coloured tins of paint for better detail though!That's right. The Moon is about as dark as road asphalt. Amazing that it looks so bright in the night sky, but if we were to paint it white it would look a lot brighter.
Blimey, when I were a lad we had no idea what was on the far side.Might need more coloured tins of paint for better detail though!
https://www.sciencefocus.com/news/entire-surface-of-the-moon-mapped-for-the-first-time/
Oh yes you did. . . !Blimey, when I were a lad we had no idea what was on the far side.
Depends how ancient you are really.Blimey, when I were a lad we had no idea what was on the far side.
Well I'm in full pedant mode!Depends how ancient you are really.
The first pic of the far side of the moon was obtained in 1959.
https://kottke.org/19/10/the-first-photograph-of-the-dark-side-of-the-moon-from-1959
But was it Wensleydale all through?Oh yes you did. . . !
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Indeed. If Pink Floyd have taught us anything at all, it's that "...matter of fact....it's all dark"Darkside of the moon indeed, it's the far side there is no darkside.
More like your Stilton I imagine!But was it Wensleydale all through?
I am glad that space is a vacuum.More like your Stilton I imagine!
Strictly speaking, space is an 'almost vacuum', seeing as even in the most remote spots of 'outer space' there are still bits of stuff floating about.I am glad that space is a vacuum.
Yes. I know.Strictly speaking, space is an 'almost vacuum', seeing as even in the most remote spots of 'outer space' there are still bits of stuff floating about.
First of all, when we say outer space (the space outside the atmosphere of planets and stars) is a "vacuum" or is "empty", we really mean that outer space is nearly empty or almost a perfect vacuum. In reality, even the most remote spot of outer space has gas, dust, radiation, gravity, and a whole host of other things.
link to surprising science.
Million to one chances crop up nine times out of ten...The chances of anything coming from Mars are a million to one...
Million to one chance crops up nine times out of ten, and even then only once in a Blue Moon!Million to one chances crop up nine times out of ten...