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.

Now we have physical proof that two black holes merge together to form a larger more powerful black holes. But the main thing is, with this discovery, we have an entirely new world full of interesting information to explore.

With LIGO, we could study what happens in a supernova, or the famous neutron star, which is so dense, 1 teaspoon of a neutron star would weigh 1 billion tons on earth. LIGO is also very easy to update; in the near future, we should be able to see and study things 500 times the size of the sun.
One may find it interesting to know that Albert Einstein was the first scientist to predict the existence to gravitational waves some 100 years ago.