June 29, 2022

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Incredible melee of galaxies photographed by Hubble

Five constellations orbit each other: this is the Hickson Compact Group 40 captured by Hubble. One billion years from now, they will collide into a giant elliptical galaxy.

One more year sweeping the sky Hubble Space Telescope, Who is 32 years old. For the ceremony, the NASA Reveals a photo Hickson Compact Group40 Also known as HCG40, a strange group of five Constellations. Of them, one was called a galaxy Elliptical And a Lenticular galaxy. As for the other three, they are spiral shaped Milky Way.

Is located towards the constellation ofHydraThe band is so compact that it fits at intervals less than twice the diameter of our star disk. Milky Way. The reason? The Black material : It surrounds five galaxies in a halo. As a result, they inevitably approach each other. moults Their mutual attraction is not by attraction, but by it Black material, Invisible. Hubble watched them as they prepared, at a crucial moment in their lives To merge Each other. Since the connection will only take place in a billion years, the time scales are not the same for us!

This is the way James-Webb should be held accountable

Launched into orbit around the Earth by NASA astronauts in 1990, Hubble has made more than 1.5 million observations of about 50,000 celestial objects! Enough to make such great discoveriesAccelerates the expansion of the universe, Or determining its size and age. Today, James Webb It is getting ready to take responsibility as it has been measuring and preparing all its measuring instruments. Like its predecessors, it explores the deep universe, with all its motives, first moments and the formation of galaxies. These may be in the same state as the HGC40 galaxy, i.e. they are collected in smaller and denser clusters.