NASA is going to celebrate the Hubble Space Telescope’s 32nd b’day with a stunning view of The Hickson Compact Group 40, an extraordinary close-knit gathering of five galaxies.
Three spiral galaxies, an elliptical galaxy, and a lenticular (lens-like) galaxy. These various galaxies made contact in their evolution, resulting in an unusually crowded and diverse galaxy sampler.
These galaxies are noticeably secluded in their very own small patch of the universe, pointing in the path of the constellation Hydra. One potential explanation is that these galaxies are surrounded by a lot of dark matter. If they get close enough, the dark matter could indeed combine to form a large cloud around which the galaxies orbit.
Happy birthday, Hubble! 🥳
As we celebrate the telescope’s 32nd anniversary week, enjoy this birthday present – a stunning new Hubble image of a collection of five galaxies, known as Hickson Compact Group 40.
— Hubble (@NASAHubble) April 19, 2022
The gravitational effects of dark matter, galaxies experience a resistive force as they pass through it. This tends to slow their motion and causes the galaxies to lose energy, causing them to collide.As a result, this snapshot captures the galaxies at a really special point in life. They will ultimately cross paths and combine to form a massive elliptical galaxy in around 1 billion years.
This compact galaxy group has been studied not just in visible light, but in radio, infrared, and X-ray wavelength of light. Almost all of them contain a compact radio origin in their clusters, which could detect the presence of supermassive black holes.
Due to the presence of a lot of hot gas among the galaxies, X-ray observations show that the galaxies have been gravitationally conversing. Infrared observations provide information about the rate of latest star formation.
According to observations, such tight groups were more widespread in the early universe and supplied energy for powering black holes recognised as quasars, for whom the light from overheated conflict material blazed across space.
NASA deployed Hubble into orbit around Earth on April 25, 1990. To date, the telescope has made 1.5 million findings of roughly 50,000 celestial targets.
Cover Image: NASA/Twitter