Put the summary notes in the correct order. 1.3 billion years ago, two black holes locked into a spiral and collided, releasing an enormous amount of energy in a very short time. However, their energy could not turn into light, so it caused gravitational waves. From that moment until the present, life on Earth has evolved significantly. Only about 25 years ago, a group of scientists from leading research centres came up with an idea of a laser detector to explore the gravitational waves. The US National Science Foundation agreed to fund the project and the detector was constructed. It was named LIGO: The Laser Interferometer Gravitational-Wave Observatory and over the years, it has greatly improved its accuracy. On September 14 of 2015, the gravitational waves from the black holes colliding 1.3 billion years ago passed through our planet and were detected by Advanced LIGO. Scott Hughes, a theoretical physicist at MIT studying gravitational waves, says that this breakthrough was one of the landmark events of his life.
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Put the summary notes in the correct order.

  • 1.3 billion years ago, two black holes locked into a spiral and collided, releasing an enormous amount of energy in a very short time.
  • However, their energy could not turn into light, so it caused gravitational waves.
  • From that moment until the present, life on Earth has evolved significantly.
  • Only about 25 years ago, a group of scientists from leading research centres came up with an idea of a laser detector to explore the gravitational waves.
  • The US National Science Foundation agreed to fund the project and the detector was constructed.
  • It was named LIGO: The Laser Interferometer Gravitational-Wave Observatory and over the years, it has greatly improved its accuracy.
  • On September 14 of 2015, the gravitational waves from the black holes colliding 1.3 billion years ago passed through our planet and were detected by Advanced LIGO.
  • Scott Hughes, a theoretical physicist at MIT studying gravitational waves, says that this breakthrough was one of the landmark events of his life.

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