TNPSC Thervupettagam

Starless Gas Cloud – Cloud 9

January 14 , 2026 15 hrs 0 min 28 0
  • NASA’s Hubble Space Telescope has discovered a starless gas cloud called Cloud 9 near the galaxy Messier 94.
  • Cloud 9 is located about 14 million light-years away from Earth.
  • It is a Reionisation-Limited HI Cloud (RELHIC), made mainly of neutral hydrogen and dark matter.
  • The cloud has no stars and is called a “failed galaxy”.
  • It contains hydrogen equal to one million times the Sun’s mass and is surrounded by a dark matter halo of about five billion solar masses.

 

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