As an AI language model, I do not have access to current news and information as it constantly changes with time. However, here are 10 scientific theories that have been debated and studied in recent times:

1. Theory of everything: A unified theory that could explain all known phenomena in the universe through a single framework.

2. Multiverse theory: The idea that our universe is just one of many universes that exist parallel to each other.

3. Epigenetics: The study of how environmental factors can affect gene expression and potentially be passed down to future generations.

4. CRISPR gene-editing technology: A revolutionary technique that allows scientists to edit genes with unparalleled precision.

5. Dark matter and dark energy: The mysterious substances that make up a large portion of the universe but cannot be detected through normal means.

6. Quantum computing: An emerging technology that uses the strange properties of quantum mechanics to perform calculations at incredibly high speeds.

7. Artificial intelligence and machine learning: The development of machines that can learn from data and make decisions independent of human input.

8. Evolution by natural selection: A long-standing theory that explains how species change over time through the process of adaptation.

9. Climate change: The study of how the Earth’s climate is changing due to human activity, and the potential consequences of these changes.

10. String theory: An advanced physics theory that aims to unify all fundamental forces and particles in the universe under a single framework.