Today's new image of the Pillars of Creation formation show many stars in the background that I've not seen before. That made me wonder: are there enough stars in the universe such that the sky could be covered entirely by starlight? [more inside]
Once you've flown away from the Earth what's the view like during interplanetary travel? Do planets look as they do on Earth, or are they brighter? What about the stars—or does the sun wash out a lot unless you're in a shadow? Aside from very bright, what does an unshielded sun look like? How far do you need to travel before you loose sight of the Moon? Is any of this like playing Kerble Space Program? [more inside]
If all non-solar-system stars ceased to exist, how would things look different to us on earth? Would anything change? [more inside]
My housemate and I just saw a bright pinpoint flash (approx intensity and size of Rigel) in the sky, lasting about an eighth of a second, what's it likely to have been? [more inside]
Was the entire universe created by the Big Bang, or is the space/time generated by the Big Bang part of a larger universe?
Was the entire universe created by the Big Bang, or is the space/time generated by the Big Bang part of a larger universe? [more inside]
Did we see the International Space Station on Friday night from the beach in Malindi, Kenya? [more inside]