Kirin Eldridge

I am aware that the dwarf planet Ceres has a mean orbital radius of 2.77AU so obviously at it's closest to Earth the distance would be 1.77AU. But obviously if Earth and Ceres are on opposite sides of the Sun then this distance would be much greater Theoretically if you could build a spacecraft capable of accelerating indefinitely at say one quarter of Earth's gravity, taking the fastest possible route to the planet. One further thing to consider would be that due to safety, you wouldn't be accelerating all the way across we're assuming you need to stop at Ceres, so halfway across you can begin to decelerate the ship at the same rate. With the acceleration/deceleration remaining fairly constant, what would be the maximum and minimum travel times to get to Ceres?

I am currently studying Cosmology in School, and was told that after a supernova there can still be some of the core remaining which becomes a superdense neutron star. I was also told that these spin with a frequency of 30.2Hz. Is there any particular reason for that frequency? Do all neutron stars spin at this rate, and why?

Dear All, As I have mentioned on another post on a different forum, I am doing some research for a science-fiction book as part of the story, and I was wondering about some details of the moon Titan. One chapter describes the crew landing on Titan and disembarking from a spacecraft onto the surface. My question is this: What would they see across the surface? I read somewhere that Titan has a denser atmosphere that Earth, and there is a layer of haze at some point. However, would this haze be seen as a sort of fog across the rock? Or would the low-level air be clear enough to see for a long distance? Please provide any explanations you can; it would be greatly appreciated. Yours, Kirin Eldridge

Thank you for the info, it was very helpful.

I suppose I should introduce this first. Essentially I am writing a science-fiction story and want it to be quite heavily based on fact. It is set in human timeline in the future. However, one question I need to know, how feasible is methane propulsion for spacecraft? I read a brief article about recycling oxygen for use of breathing, but it did not explain if this was possible on a large scale. The idea is this: Water is electrolysed and the oxygen injected into the air for passengers to breathe, while the hydrogen is combined with the carbon dioxide to form methane and water. The water can be re-used in further electrolysis, while the methane potentially used for fuel. Would it be possible to produce methane on a large enough scale using this method?