What is Narrow-Line Seyfert 1 (NLS1), recently seen in news?
A. New active galaxy
B. Asteroids
C. Ransomware
D. None of these
Explanation:
Astronomers have discovered a new active galaxy, identified as the farthest gamma-ray emitting galaxy that has so far been stumbled upon. This active galaxy called the Narrow-Line Seyfert 1 (NLS1) galaxy, which is about 31 billion light-years away, opens up avenues to explore more such gamma-ray emitting galaxies.