Astronomy and the Limits of Human Understanding - Professor Carolin Crawford

TL;DR

Dark energy, dark matter, and other unknowns ensure that there will always be more to learn in physics and astronomy.

Transcript

how much longer is there going to be a supply of expat inflationary fields of ignorance with in physics and astronomy which will give your great-great grandchildren the potential for careers in astrophysics yes if I can start that one off I mean it basically there's dark energy and Dark Matter there are things we don't understand there are dark pho... Read More

Key Insights

• 🕶️ Dark energy, dark matter, and dark photons are areas of physics and astronomy that continue to baffle scientists.
• 🫵 Scientific knowledge is ever-evolving, and our current understanding will likely be viewed as incomplete or naive in the future.
• 👨‍🔬 The existence of unanswered questions drives scientific research and exploration.

Questions & Answers

Q: What are some examples of "unknown unknowns" that scientists have discovered in the past?

One example is the discovery that the ether, which was previously believed to exist in late Victorian times, does not actually exist. This highlights the constant evolution of scientific knowledge and the potential for new theories to arise.

Q: How does the potential for unanswered questions contribute to the excitement of scientific discovery?

The unknowns in physics and astronomy provide a driving force for scientists. The prospect of uncovering new phenomena and gaining a deeper understanding of the universe fuels research and sparks curiosity.

Q: What is the significance of the Square Kilometre Array (SKA) in radio astronomy?

The SKA, based in Jodrell Bank, aims to discover previously unknown phenomena and advance our knowledge of the universe. Past major instruments have consistently led to new discoveries, and the SKA is expected to continue this trend.

Q: Is it possible that there are questions in physics and astronomy that are too difficult for us to answer?

While some questions may be incredibly challenging, scientists embrace the concept of unknown unknowns. They rely on the excitement and potential of unraveling these mysteries, as it fuels the progress in these fields.

Summary & Key Takeaways

• Physics and astronomy consistently present new mysteries and questions to investigate.

• Dark energy, dark matter, and dark photons continue to puzzle scientists and offer potential for future careers.

• The history of scientific discoveries shows that our current understanding will likely be seen as naive in the future.