The battle between galaxies in the universe

According to scientists, a group of five galaxies, Stephan's Quintet, is 280 million light-years from Earth, collided with each other and emitted light in the last century.

>>>Unique picture of 2 galaxies colliding

New scientists have discovered an event that rocked this group of five galaxies.

The galaxy named NGC 7318B caused a massive sound explosion in the center of the galaxy group at millions of miles per hour.

The blue arc shows an extreme sound boom
Large happens at the heart of Stephan's Quintet galaxy group.

By observing through radio waves and X-ray images, researchers from the California Institute of Technology (USA) and the Max Planck Institute of Nuclear Physics (Germany) found that more than 100,000 million volumes of gas are in between. The galaxy is pushed out of its original position.

It is this shift of gas mass that creates a huge shockwave that NASA's Spitzer telescope captured.

"The intensity of emission and the amount of gas being disturbed at a high level is really a big surprise for us ," said Dr. Phil Appleton, the team leader.

The researchers hope to see the spectrum of dust particles, but instead, they detect the spectrum of hydrogen molecules and almost nothing else. It is not like anything they ever observed before in the galaxy system.

They also discovered that four out of five galaxies belong to the interaction group, often colliding with each other. These four galaxies are called NGC 7319, 7318A, 7318B and 7317, yellow, about 300 million light years from the earth.

The fifth blue galaxy named NGC 7320, 40 million light years from our planet.

High-speed collisions often occur between galaxies in the group.

Scientists believe that these strong collisions will eventually result in four closely interacting galaxies in the Stephan's Quintet galaxy system merged as one.

Reference: Daily Mail