About this episode

In this Q&A edition, hosts Andrew Dunkley and Professor Fred Watson answer listener questions about the universe, gravitons, and the effects of weightlessness on astronauts.

Universe, and WeightlessnessIn this Q&A edition of Space Nuts, Andrew Dunkley and Professor Fred Watson tackle an array of intriguing listener questions that delve into the complexities of the universe. From the implications of an expanding universe to the elusive graviton and the experience of transitioning from weightlessness back to Earth's gravity, this episode promises to enlighten and entertain.Main Topics: The potential for a future black void in our night sky as the universe continues to expand. Understanding the graviton: Why do some physicists believe in its existence despite its elusive nature? Exploring the properties of photons and their wave-particle duality. The impact of long-term weightlessness on astronauts and their return to normal gravity. Listener feedback and inspiring stories about engaging younger generations in astronomy. Timestamps: 00:00 - Introduction to today's Q&A session and listener engagement 02:30 - Clint's question about the future of the night sky and cosmic expansion 12:45 - Alan's deep dive into gravitons and their connection to gravity 28:00 - Misty's inquiry about the wave function of particles and photons 40:15 - Casey's question…

People in this episode

Hosts: Professor Fred Watson, Andrew Dunkley

Topics covered

• expanding universe
• gravitons
• weightlessness
• photons
• astronauts
• listener engagement

Keywords

• universe
• graviton
• weightlessness
• expansion
• photons
• gravity
• astronomy

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