It’s been an impressive year for astronomy so far as scientists break records for the most distant star and most distant galaxy ever discovered.
Distant objects were seen even without the help of the groundbreaking new James Webb Space Telescope, which is gearing up for its first scientific observations later this year, potentially helping us discover parts of the universe more distant than ever before. make capable.
Until then, newsweek has compiled a list of some of the most distant objects ever found.
This year, an international team of researchers announced that they have discovered what they believe is the most distant galaxy ever discovered.
Located 13.5 billion light-years away, HD1 is a galaxy candidate that was spotted by researchers after spending more than 1,200 hours looking through various telescopes.
Little is known about it so far. The team that discovered HD1 proposes that it is rapidly forming some of the earliest stars in the universe – noting that we are seeing them as we look at distant objects as they were in the past, not as they are now. Another theory is that it contains a supermassive black hole.
According to Fabio Pacucci, co-author of the two papers describing HD1, it will be hard to find out more about it. “It is like guessing the nationality of a ship that flies by the flag, while on the far shore, with the ship in the middle of a thunderstorm and thick fog,” he said in a Harvard University press release.
It is hoped that upcoming telescopes like Webb will help further investigate galaxies like HD1.
On March 30, NASA announced that the Hubble Space Telescope was used to locate the most distant individual star ever observed.
The star’s name is Arendelle, which means “morning star” in Old English. It is located about 12.9 billion light-years away and is estimated to have at least 50 times the mass of the Sun.
Scientists believe the star existed within the first billion years of the universe, giving us a valuable insight into very early star formation.
Astronomer Brian Welch of Johns Hopkins University in Baltimore and lead author of the paper describing the discovery told NASA: “Arendel’s study will be a window into an era of the universe we are unfamiliar with, but from which we all know.”
The letter was published in the journal Nature,
In January 2021, astronomers reported the discovery of a quasar J0313-1806, located 13.03 billion light-years away from Earth.
According to a University of Arizona press release, the most distant quasar ever discovered is about 670 million years after the Big Bang and contains a supermassive black hole with a mass of 1.6 billion suns.
Quasars are extremely bright celestial bodies thought to be the center of infant galaxies, their light being driven by gas that quickly turns into a very large black hole.
Farthest object discovered
The most distant object ever discovered by scientists is Arokoth (2014 MU69), a small, icy object that orbits the Sun 4.1 billion miles from Earth in a region of the Solar System called Known as the Kuiper Belt, which lies beyond the orbit of Neptune.
arokotho It was visited in 2019 by the New Horizons probe – a fly-by that revealed its strange shape referred to by NASA as a snowman. It also has a red color.
Arrokoth is considered to be two objects that merge into one. According to NASA, it measures about 22 miles from end to end and its name means “sky”.