NASA has discovered a mysterious signal coming from outside the hidden galaxy

NASA researchers noticed a strange signal while analyzing 13 years of data collected by NASA Fermi gamma ray space telescope. The device allows you to perform Astronomical observations from low Earth orbit. The results are detailed in an article published in The Astrophysical Journal Letters.

Gamma rays are a form of penetrating electromagnetic radiation that develops from the radioactive decay of an atomic nucleus. Furthermore, gamma radiation is the most energetic form of light in the universe. These explosions mark the end of the life of a massive star, also known as a supernova.

They can also develop after two neutron stars collide. As such, this signal baffles scientists Challenges what they know about space rays. “It was an unexpected and inexplicable feature outside our galaxy,” wrote Francis Ready of NASA's Goddard Space Flight Center.

The researchers were looking for one of the oldest features of gamma rays, known as the cosmic microwave background, or CMB. instead of, Locate this inexplicable signal that is coming from a similar direction Almost to the same extent, according to the specialized website Science Alert.

“It is a completely serendipitous discovery.” said Alexander Kashlinsky, a cosmologist at the University of Maryland and NASA's Goddard Space Flight Center.

“We found a much stronger signal and in a different part of the sky than we were looking for.”to caution. Researchers believe this discovery could be related to a cosmic gamma ray feature observed in 2017.