Where Are All the Exo-Earths?

The video discusses the discovery of over 5000 exoplanets and the methods used to find them, such as the wobble and transit methods. It highlights the challenges in detecting smaller and distant planets and introduces alternative techniques like gravitational microlensing. The video emphasizes the importance of understanding biases in current methods and the potential for future advancements in exoplanet detection.

What does the discovery of over 5000 exoplanets indicate about our understanding of the Galaxy?

Explain the wobble method used in exoplanet discovery.

How does the transit method help in identifying exoplanets?

What challenges do astronomers face when trying to detect small or distant planets?

Discuss the significance of gravitational microlensing in exoplanet discovery.