Major Discovery of Loud Gravitational Vibrations Across The Entire Universe

In this video: 1. **Pulsars and the Discovery of Neutron Stars**: The discovery of pulsars by Jocelyn Bell in 1967 led to the identification of neutron stars, a theoretical prediction from astrophysics. Pulsars are neutron stars with powerful magnetic fields that emit strong signals in two directions. 2. **Gravitational Waves**: The concept of gravitational waves was proposed by Einstein over a century ago. The first direct evidence of gravitational waves, however, only came in 2015. Since then, around 100 different gravitational wave events have been detected, typically involving collisions of neutron stars or black holes. 3. **Detecting Background Gravitational Waves**: The recent breakthrough in 2023 involves the detection of a pervasive background of low-frequency, or nanohertz, gravitational waves. These waves have such long wavelengths that they pass through Earth undetected. However, by observing changes in the timing of pulsar emissions, scientists can detect these waves. 4. **International Collaboration**: This discovery was made through international collaboration involving North American, European, Australian, Chinese, Indian, and South African teams. Each team used different pulsars for their observations but came to the same conclusion, strengthening the confidence in this discovery. 5. **Potential Sources and Implications**: The most likely source of these waves are supermassive black holes in binary systems, though other possibilities include cosmic strings, or remnants from a pre-Big Bang universe. The discovery of these background gravitational waves indicates that space-time itself is constantly vibrating, and suggests that our universe might contain more massive objects than previously thought. Future research will hopefully identify the exact sources of these gravitational waves. 6. **Continued Research**: Observations will continue for at least four more years. As this field of research continues to advance, scientists hope to find more answers about the origin of these gravitational waves and the nature of the universe itself.