In new images from the Hubble Space Telescope, three giant galaxies are on the verge of colliding, fouling gas and dust with violent debris.
Collisions of three galaxies in space are relatively rare, according to the European Space Agency, so scenarios like this offer astronomers an opportunity to study how the universe’s most massive galaxies form. provide.
This trio was discovered at the Botes cosmological distance and is known as SDSSCGB 10189. After distorting each other’s spiral shapes, he eventually merges into one spectacular galactic neighborhood. According to NASA, galaxy mergers create turbulence and tides that can trigger new bursts of star formation within interstellar gas clouds.
Webb Telescope Mistake Leads to Amazing Discovery
Tweet may have been deleted
(opens in new tab)
(opens in new tab)
Such a merger provides a kind of teaser campaign for the future collision of our own Milky Way galaxy and its giant galactic neighbor Andromeda. NASA estimates that day will come in about 4 billion years.(opens in new tab).
But calling it a “day” is a mistake. The merging of galaxies occurs on a timescale of hundreds of millions of years, which is immeasurable to humans.(opens in new tab).
New Hubble images show these three large star-forming galaxies within just 50,000 light-years(opens in new tab) From each other to Andromeda, which is about 50 times the distance of the Milky Way. Astronomically speaking, the trio is a tight-knit bunch.
“It may sound like a safe distance, but it makes for a very close neighbor for the galaxy,” the European Space Agency said of the image.(opens in new tab)“Our own galactic neighbors are far away. The closest large galaxy to the Milky Way, Andromeda, is more than 2.5 million light-years away from Earth.”
Scientists predict that the Milky Way and Andromeda galaxies will merge in about 4 billion years.
Credits: NASA/ESA, A. Field, R. van der Marel/STScI
i want more science and tech news delivered straight to your inbox? Sign up for Mashable’s Top Stories newsletter today.
“It may sound like a safe distance, but it makes for a very close neighbor to the galaxy.”
Previous Hubble studies have shown that these collisions were more common in the past when the universe was small. Nonetheless, galaxy collisions continue to occur, as these cosmic objects are believed to be bound by the gravitational pull of so-called dark matter, an invisible cosmic substance suspected of being present throughout the universe. increase.
Hubble astronomers can already figure out how the three galaxies influence each other’s structure. Their competing gravitational forces are playing a game of tug-of-war, drawing streams of gas and dust between them. A bridge of gas between bright objects is a sign of an impending merger.
Tweet may have been deleted
(opens in new tab)
(opens in new tab)
“These giant galaxies are called brightest cluster galaxies (BCGs) and, as their name suggests, are defined as the brightest galaxies in any cluster,” said ESA.(opens in new tab).
To the left of this triple merger is a fainter spiral galaxy. Scientists say it’s far enough away to be out of reach of the crash.
