Galactic Tranquility – Spectacular Spiral Galaxy Captured by Hubble Space Telescope

Galaxy NGC 976

Galaxy NGC 976 imaged by the Hubble Space Telescope, not only exhibits stunning spiral arms but also has hosted a significant supernova. This galaxy, situated in Aries, aids astronomers in calibrating distance measurements across the universe. Credit: ESA/Hubble & NASA, D. Jones, A. Riess et al.

NGC 976, a spiral galaxy captured by the Hubble Space Telescope, is located 150 million light-years away in the constellation Aries. Known for hosting a supernova, this galaxy helps astronomers measure cosmic distances using the consistent brightness of such explosions.

The lazily winding spiral arms of the spectacular galaxy NGC 976 fill the frame of this image from the NASA/ESA Hubble Space Telescope. This spiral galaxy lies around 150 million light-years from the Milky Way in the constellation Aries. Despite its tranquil appearance, NGC 976 has played host to one of the most violent astronomical phenomena known — a supernova explosion. These cataclysmicly violent events take place at the end of the lives of massive stars, and can outshine entire galaxies for a short period. While supernovae mark the deaths of massive stars, they are also responsible for the creation of heavy elements that are incorporated into later generations of stars and planets.

Supernovae are also a useful aid for astronomers who measure the distances to faraway galaxies. The amount of energy thrown out into space by supernova explosions is very uniform, allowing astronomers to estimate their distances from how bright they appear to be when viewed from Earth. This image — which was created using data from Hubble’s Wide Field Camera 3 — comes from a large collection of Hubble observations of nearby galaxies that host supernovae as well as a pulsating class of stars known as Cepheid variables. Both Cepheids and supernovae are used to measure astronomical distances, and galaxies containing both objects provide useful natural laboratories where the two methods can be calibrated against one another.

1 Comment on "Galactic Tranquility – Spectacular Spiral Galaxy Captured by Hubble Space Telescope"

  1. Dennis ODonnell | January 12, 2022 at 6:40 pm | Reply

    Fantastic. Hope nasal puts out pictures from Webb just like this.

Leave a comment

Email address is optional. If provided, your email will not be published or shared.