June 17, 2019

29.9.9:Hubble Spies a Galactic Jet.

The formerly ailing Hubble Space Telescope spied something remarkable earlier this year; a rapidly expanding jet around the massive galaxy M87. Dubbed HST-1, this blob of matter is the first object with a Hubble designation, and has been tracked for over seven years. Brighter than the galaxies’ own core, the gas knot is 214 light years from the core and receding. M87 is visible in the constellation Virgo with a backyard telescope, and is part of the massive Virgo cluster of galaxies about 54 million light years away. The growth of the brightness of the jet expanded by 90 fold over the past decade, giving astronomers the opportunity to examine an active galactic nucleus in action. As the refurbished Hubble begins to strut its stuff, doubtless HST-1 will be an object of increased scrutiny!