21–30 of 38 posts
There is a comment on the site that the Galilean Moons of Jupiter can be seen with the naked eye under dark skies. I've known people who might have eyes good enough to do that, but for the rest of us even a modest pair of binoculars is enough. To me, it's one of the funnest things you can view in the northern hemisphere without getting out more serious equipment. (Another would be the Orion nebula. If you can set the…
Is there a CSV somewhere?
I'm surprised we haven't seen more hard sci-fi in the jovian or cronian systems. While constant 1g acceleration drives open the whole solar system to the ~month travel time that benefits stories, much more realistic accelerations (or limited fuel) can still manage the same within those systems. Add to that the plethora of interesting moons, rings, and gravitational points to focus people and material around and the a…
The books are great and the TV series is now on Amazon Prime, with future seasons coming. Anybody on HN ought to be watching it.
Fortunately Amazon took it. If after three seasons of slow development it ended where we start to see answers, I would have considered it a scam. Not so insulting as Gallactica, but definitely annoying.
I'm surprised we haven't seen more hard sci-fi in the jovian or cronian systems. While constant 1g acceleration drives open the whole solar system to the ~month travel time that benefits stories, much more realistic accelerations (or limited fuel) can still manage the same within those systems. Add to that the plethora of interesting moons, rings, and gravitational points to focus people and material around and the a…
Earlier quoted context omitted.
Wasn't Galileo first to observe them with his telescope or were they mentioned somewhere before? I assume back then the skies were darker and people probably had better eyes so if they are observable I would assume somebody would have mentioned them.
There are a few confounding factors: 1. Jupiter is very bright. 2. The moons aren't always visible (they're behind or crossing Jupiter). 3. The magnitude of the moons changes with the relative positions of Earth and Jupiter. It's possible that Galileo was not the first to see them, but if you don't know what they are or how you managed to see them, you're probably not going to be able to get anyone else to believe yo…
There is a comment on the site that the Galilean Moons of Jupiter can be seen with the naked eye under dark skies. I've known people who might have eyes good enough to do that, but for the rest of us even a modest pair of binoculars is enough. To me, it's one of the funnest things you can view in the northern hemisphere without getting out more serious equipment. (Another would be the Orion nebula. If you can set the…
Wasn't Galileo first to observe them with his telescope or were they mentioned somewhere before? I assume back then the skies were darker and people probably had better eyes so if they are observable I would assume somebody would have mentioned them.
[1] http://en.cnki.com.cn/Article_en/CJFDTOTAL-TTWL198102000.htm
I'm surprised we haven't seen more hard sci-fi in the jovian or cronian systems. While constant 1g acceleration drives open the whole solar system to the ~month travel time that benefits stories, much more realistic accelerations (or limited fuel) can still manage the same within those systems. Add to that the plethora of interesting moons, rings, and gravitational points to focus people and material around and the a…
The books are great and the TV series is now on Amazon Prime, with future seasons coming. Anybody on HN ought to be watching it.
I'm surprised we haven't seen more hard sci-fi in the jovian or cronian systems. While constant 1g acceleration drives open the whole solar system to the ~month travel time that benefits stories, much more realistic accelerations (or limited fuel) can still manage the same within those systems. Add to that the plethora of interesting moons, rings, and gravitational points to focus people and material around and the a…
I'm surprised we haven't seen more hard sci-fi in the jovian or cronian systems. While constant 1g acceleration drives open the whole solar system to the ~month travel time that benefits stories, much more realistic accelerations (or limited fuel) can still manage the same within those systems. Add to that the plethora of interesting moons, rings, and gravitational points to focus people and material around and the a…