A Hubble Space Telescope image of a galaxy called NGC 7038. (Image credit: ESA/Hubble & NASA, D. Jones. Acknowledgement: G. Anand, L. Shatz)

The Hubble house Telescope has been taking AN extended check out a extragalactic nebula to assist astronomers create enhancements in activity Brobdingnagian cosmic distances.


NGC 7038 is a massive, oval-shaped extragalactic nebula with four blue spiral arms moving around it and a bright, pale-yellow center. Strands of orange mud conjointly emanate from the guts of the enormous hive of stars, with Brobdingnagian numbers of different galaxies visible within the background.


The image was created from quite fifteen hours of observations from the Hubble scope telescope 's Wide Field Camera three. The aim of the time-intensive exercise is to calibrate 2 of the foremost common distance activity techniques, that use kind Iowa supernovas and Cepheid variables, Hubble scientists wrote in an exceedingly statement lightweight from kind Iowa supernovas diminishes because it travels, whereas Cepheid variables ar stars that brighten and dim at a relentless rate that conjointly permits their brightness to be calculated and wont to verify distance.