August 16, 2019
Q&A 95: Is Techno-Optimism Blinding Us To The Challenges of Space Exploration? And More...
In this week's questions show, I answer if techno optimism is blinding us to the challenges of spaceflight, why there aren't spacecraft at all the planets right now, could the Great Attractor be dark matter? And more...
Watch the video here:
Comments (1)
M
Mohut · August 16, 2019
Fraser, I realize a teaspoon of matter from a neutron star would weigh somewhere on the order of 10M tons. But, I don't have a good appreciation of the density of the Sun at its core. Can you provide us a picture of just how dense the hydrogen is there? And, I presume that the extreme density of the core is the primary reason that the hydrogen in the Sun doesn't circulate there so that the Sun can tap ALL of its hydrogen resources for duel -- much of the hydrogen just can't penetrate into the dense core?