I had never bothered to make this calculation, but always sort of assumed that the Sun would look like a disc from those distances... very small but still with a disc shape easily discernible by naked eye. This made me do the calculation. Turns out that the Sun looks almost exactly the same size from Pluto (at perihelion) as Venus does from Earth (at their closest distance)! However, venus at its closest is bright enough to cast discernible shadows and Sun's absolute brightness is a LOTTTT more than venus. So, yes, you are right. just another star in the sky that is however *much* brighter than anything else. For religions starting on pluto, you can easily bet against anything other than the Sun or Charon being their chief deity.
I think the "one-way" is between you and your server elsewhere on earth's surface, not between you and the satellite. so, the distance for one-way is really a round-trip to the satellite. you sending a package, and then receiving one back will basically take two round trips to the orbit.
I agree that it is a bit confusing. That number seems impossibly large. Perhaps they mean "number of passengers" which means that the same person making 2 return trips might be counted as 4 passengers? It is like saying "New York City's subway serves X million passengers per week", where every single person is probably counted multiple times based on the number of trips they make.
Are you talking about most of those false color images on that page? If so, they are actually not from this mission. Most of them (probably all except the first one) are from MRO's HiRISE camera.
rahultyagi writes: With Mangalyaan (Mars Orbiter Mission) successfully completing the final stage of its voyage to the red planet, ISRO — Indian Space Research Organization — now joins the US, Russian and European space agencies in a small club of deep space exploration capable entities. Entering Martian orbit just 2 days after NASA's MAVEN, Mangalyaan cost only about a tenth of the cost, thus demonstrating India's capability to successfully complete space missions at highly competitive costs to exploit the fast expanding space industry.
Link to Original Source
Link to Original Source
Here is something to boggle your mind. You think your argument is strong with Sun containing 98% of the Solar system's total mass? It is actually something like 99.8%!! to think that stray jupiter-size brown dwarves can weigh anywhere near the total stellar masses that we see betrays complete lack of understanding of the difference of scales involved.
you are assuming that by "metal" they mean iron etc. all the examples that you cite (except H and He) are "metals" by astrophysicists' definition.
er, I think they meant $1000 per car, not per car per year! why would you ask for $1000 per year? it's not as if speeding fines are worth that much on average per car per year.
yeah, just an engineering problem. you might also want to think about a way to move at 0.9c and yet dodge all the stuff that will hit you like a hydrogen bomb...
rahultyagi writes: After running into some problems in its 4th orbit raising maneuver 2 days ago, Mangalyaan (India's Mars Orbiter Mission) seems back on track now. A supplementary burn lasting ~304 seconds was completed today, raising the apogee of MOM to 118642 km — the intended apogee after the original 4th orbit raising maneuver. After the glitch two days ago, ISRO again seems to be on track to become the first entity to have a successful mars mission on its first attempt. Though, of course, there are quite a few things that might still go wrong before this can be called a successful mission. Let's all hope that a year from now we are all celebrating the entry of another nation into the small club capable of successful interplanetary missions.
That's not science. just statistics. What it suggests is that the subway riders in your city come from the same population as the one that CDC report is about. (and that you did a pretty good job of sampling without possible biasing factors!
No, I don't think her is denying the existence of orbit degradation. The problematic part is you saying that it happens "due to gravity". gravity keeps it in orbit, lack of vacuum is what brings it down. Rahul
Mars's orbit isn't a function of its mass. It only depends on Sun's mass. you could, however, make the same point using Phobos/Diemos's orbit.
I think "Qaher" actually means something like "wrath" rather than "dominant". That is true at least in Urdu, which has a lot of influence of persian language. Can someone who knows persian confirm?
er... 10000 km is "somewhat over a quarter of the way to the moon"? if you really think that the moon is only about 4 earth diameters away from the earth, your mental model of solar system needs a serious recalibration!