The First Detection of Gravitational Waves
Introduction:
Hi, I am Kritman reading in grade 7B. I love to explore scientific concepts.
On Feb 11th 2016, scientists announced the first direct detection of gravitational waves. This was detected by LIGO (Large Interferometer Gravitational wave Observatory) on September 14, 2015, when 2 black holes, 29 and 36 times the size of the sun respectively, collided with each other.