Dark Matter and Dark Energy: The Hidden 95% of the Universe - Bryan Clegg

Key Concepts:

1. Dark Matter (27% of the Universe)

   • Invisible and does not emit light or energy.
   • Detected through its gravitational effects on galaxies.
   • Scientists believe it holds galaxies together.

2. Dark Energy (68% of the Universe)

   • A mysterious force causing the universe to expand faster over time.
   • Opposes gravity and accelerates cosmic expansion.
   • Discovered through observations of distant supernovae.

3. Scientific Discoveries & Theories

   • Explains the history of dark matter and dark energy research.
   • Discusses experiments like the Large Hadron Collider and space telescopes.

4. Future Exploration

   • Highlights upcoming missions and theories that could uncover the true nature of dark matter and dark energy.