This has got to be one of the very best astronomy programmes every not only does it do what it says it does but its easy to understand and to operate but it is very educational to even the most... More
Far better than other alternatives I've tried, first because of the precision of the data used, second because of the ease of navigation in time and in space.
And the graphics are stunning.
I've just been reading an article about 13 things that don't make sense. I'm sure there are more than...
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