Five things you need to know about gravitational waves!

Gravitational waves are ripples that travel at the speed of light through the fabric of space-time.

Updated: Feb 11, 2016, 23:13 PM IST
PlayFive things you need to know about gravitational waves!
Image credits: R. Hurt/Caltech-JPL/NASA

New Delhi: Scientists on Thursday announced that they had detected evidence of gravitational waves. The discovery has been hailed as a milestone in quest to understand the cosmos. Here are some useful information about gravitational waves:

 

  • Gravitational waves are ripples that travel at the speed of light through the fabric of space-time.
  • Albert Einstein predicted the existence of gravitational waves in his general theory of relativity a century ago, and scientists have been attempting to detect them for 50 years.
  • On Thursday, February 11, 2016, physicists from the Laser Interferometer Gravitational-wave Observatory (LIGO) announced that they had detected gravitational waves from a black hole collision, proving Einstein was right. The LIGO detections represent a much-awaited first step toward opening a whole new branch of astrophysics

 

  • Prior to the direct detection of gravitational waves, there was indirect evidence for their existence. For example, measurements of the Hulse–Taylor binary system suggest that gravitational waves are more than a hypothetical concept.
  • The historic detection of gravitational waves may open a new era of astronomy in which gravitational waves are tools for studying the most mysterious and exotic objects in the universe.