41–50 of 129 posts
Always a bit special to see science come from a spacecraft I had the pleasure of working on. Honestly there were a lot of issues during the build of Euclid that I was very glad to not be a part of, but seeing the images coming out of it now is pretty damn impressive. Hope all of the engineers that struggled to get this mission spacebourne can enjoy!
TFA specifies "more than 1,500 billion". That's more than a _trillion_, not "billions"! Why the reluctance to use the proper number?
The proper unit would be Parsec, imho
[1] Defined as the distance at which 1AU subtends an angle of one arc second or 648000/pi AU https://en.wikipedia.org/wiki/Parsec
Earlier quoted context omitted.
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Where did OP say failures? Don’t attack random strawmen with a prosecutorial line of questioning. It’s completely fine to be working on software, witness a huge hardware issue that teams scramble to fix, be proud that they fixed it and happy to be part of the team while simultaneously being happy to not have to deal with that type of stress.
The stars near us in the Milky Way are tens of light years away, and we’ll have to do some incredible science and technology to visit them. How much worse would it be if you were an intelligent life form on a planet orbiting one of those orphans, and the nearest star was a thousand, ten thousand, even a million light years away?
Large distance and time scales are rather gloomy.
Always a bit special to see science come from a spacecraft I had the pleasure of working on. Honestly there were a lot of issues during the build of Euclid that I was very glad to not be a part of, but seeing the images coming out of it now is pretty damn impressive. Hope all of the engineers that struggled to get this mission spacebourne can enjoy!
Earlier quoted context omitted.
It would be interesting to calculate how much these stars contribute to the mass deficit of the universe.
Not just stars, it implies there’s a lot of planets, asteroids, etc tossed out there.
Earlier quoted context omitted.
Not just stars, it implies there’s a lot of planets, asteroids, etc tossed out there.
I suspect in any solar system, the mass of the non-stars are a rounding error compared to the whole system's mass.
Further we dramatically underestimated the number of expo planets for decades. Quite reasonably we don’t put a lot of weight on stuff we can’t detect.
The stars near us in the Milky Way are tens of light years away, and we’ll have to do some incredible science and technology to visit them. How much worse would it be if you were an intelligent life form on a planet orbiting one of those orphans, and the nearest star was a thousand, ten thousand, even a million light years away?
At some point, given the universe's expansion, galaxies will be moving away so fast that the observable universe will be just one galaxy. Already, the effective rate from galaxies far away is actually faster than the speed of light. Even at light speeds, we cannot reach 94% of them as we would never catch up if we left today. In cosmic scales of many billions of years, observers on every galaxy will eventually think…
Earlier quoted context omitted.
Not just stars, it implies there’s a lot of planets, asteroids, etc tossed out there.
I suspect in any solar system, the mass of the non-stars are a rounding error compared to the whole system's mass.
A brown dwarf orbiting a red dwarf would beg to differ.
The stars near us in the Milky Way are tens of light years away, and we’ll have to do some incredible science and technology to visit them. How much worse would it be if you were an intelligent life form on a planet orbiting one of those orphans, and the nearest star was a thousand, ten thousand, even a million light years away?
At some point, given the universe's expansion, galaxies will be moving away so fast that the observable universe will be just one galaxy. Already, the effective rate from galaxies far away is actually faster than the speed of light. Even at light speeds, we cannot reach 94% of them as we would never catch up if we left today. In cosmic scales of many billions of years, observers on every galaxy will eventually think…