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How to get to Mars! (thanks to Mr. Reardon for link) |
'I could have gone on flying through space forever'
Yuri Gagarin
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The energy in the sunlight we see today started out in the core of the Sun 30,000 years ago – it spent most of this time passing through the dense atoms that make the sun and just 8 minutes to reach us once it had left the Sun!
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'For my part I know nothing with any certainty, but the sight of the stars makes me dream.'
Vincent Van Gogh
A neutron star has such density that a teaspoonful of its matter would weigh more than all the people on Earth.
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Images from the Hubble space telescope
'Yeah we all shine on, like the moon, and the stars, and the sun.'
John Lennon
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A black hole is not really a hole and it is not empty. It is filled with a lot of material crammed into an extremely small space. This is what gives a black hole its super strong gravity. |
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The full cost of a spacesuit is about $11 million although 70% of this is for the backpack and the control module. |