Measuring the Solar System and Universe

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The discussion highlights the significance of the transit of Venus, emphasizing its importance as a primary objective of Captain Cook's voyage. It mentions a historical figure who became so engrossed in this event that he was declared dead, leading to personal consequences for his family. Participants express curiosity about the mysteries surrounding the measurement of the universe, particularly the determination of its curvature, which remains unexplained in the conversation. The mention of Terence Tao adds a notable biographical element to the discussion. Overall, the thread explores intriguing historical and scientific mysteries related to astronomy.
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Answers to some mysteries that I've wondered about for a long time. Fast paced with cool biographical details.



Part One is good too.
 
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Greg Bernhardt said:
You had me at Terence Tao! What are your favorite mysteries solved in here?
Why the transit of Venus was so crucial that it was of the main objectives of the voyage of Captain Cook. Some other man was so preoccupied with this he was declared dead. His wife remarried and his estate was distributed. I was disappointed though they didn't explain how the curvature of the universe is determined.
 
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Thread 'Population 3 star (Pop III) candidate LAP1'

"Pop III stars are thought to be composed entirely of helium and hydrogen with trace amounts of lithium, the ingredients left over after the Big Bang. They formed early on, around 200 million years after the universe began. These stars are extremely rare because they died out long ago, although scientists have hoped that the faint light from these distant, ancient objects would be detectable. Previous Population III candidates have been ruled out because they didn't meet the three main...
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