NASA's 31-year-old Hubble Space Telescope has made another incredible discovery – it has found a "unilateral" spiral galaxy that has been deformed by the gravitational tug of another nearby galaxy. NASA has shared a stunning image of a galaxy named "NGC 2276", which is located about 120 million light-years from Earth in the constellation Cepheus. In the image, dust of blue stars surrounds the yellow core like in the scene from the movie Avengers: Age of Ultron when the AI Ultron attacks and tries to swallow Jarvis, another AI developed by Tony Stark aka Iron Man. tries to.
NASA said the spiral galaxy looks a bit one-sided due to the "galactic game of tug-of-war." "A neighboring galaxy is gravitationally pulling on its disk of blue stars, pulling stars on one side of the galaxy," NASA captioned the post on Instagram.
In a statement on its website, NASA Said that older yellow stars have a bright center normally at the center of most spiral galaxies, and added "but the bulge in NGC 2276 appears to be offset to the upper left".
"In fact, a neighboring galaxy to the right of NGC 2276 (NGC 2300, not seen in the image) is gravitationally pulling on its disk of blue stars, distorting the galaxy's normal fried stars on one side of the galaxy." This gravitational pull between very close passing galaxies is not unusual in the universe, but all such close encounters look different.
Commenting on the picture on Instagram, a user Ilaiba wrote, "This is the biggest tug of war I've seen."
"Is that other galaxy the main cause of those blue stars," asked a person with the username Geejay1976.
Another user, astro.nor, stated that a star's color is due to its temperature. "Blue stars are hotter, red stars are colder (but still very, very hot)," said the user.
A spiral galaxy is a twisted collection of hot young stars and gas. About 72 percent of the galaxies that scientists have discovered are spiral, unlike elliptical and irregular galaxies. Our galaxy is an example of a spiral galaxy.
Hubble Space Telescope
The Hubble Space Telescope is a project of international collaboration between the European Space Agency (ESA) and NASA. In April this year to celebrate the 31st anniversary of the Hubble Space Telescope, NASA released a celebratory image of one of our galaxy's brightest stars, AG Carinae, located some 20,000 light-years away.
According to NASA, since its launch in 1990, the Hubble Space Telescope has made more than 1.4 million observations because it has an "unobstructed view" of the universe.