Astronomers have discovered a new active galaxy identified as the farthest gamma-ray emitting galaxy that has so far been stumbled upon. Scientists from ARIES also played an import role in this effort.
- 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 that wait to meet us.
- Ever since 1929, when Edwin Hubble discovered that the Universe is expanding, it has been known that most other galaxies are moving away from us.
- Light from these galaxies is shifted to longer (and this means redder) wavelengths – in other words, it is red-shifted. Scientists have been trying to trace such red-shifted galaxies to understand the early Universe.
(PIB)
