when NASA‘ Hubble Space Telescope A picture of an elliptical galaxy was taken, which captured something else in the frame: surrounded by bright red arcs.
That glowing curve is not a sign of the damage of the telescope, but another galaxy – about 19.5 billion Light Years Entering from the earth space. It is much farther than the elliptical Milky Way, which is regarded as the central point in the image at the top of the story, about 2.7 billion light-years.
The strange, curved shape of the extremely remote galaxy, called her 020941.1+001557, is called “Gravity lens“A century ago, Albert Einstein’s general theory of relativity was predicted. However, the gravity lens here shows a special phenomenon called the Einstein ring.
Hubble discovers a roaming black hole light year
The Hubble Space Telescope reveals a strange natural phenomenon in images of three people in the Milky Way.
Credits: NASA
Gravity lens This happens when a celestial object has such a huge gravitational attraction that it distorts the surrounding time and space. NASA often uses analogies of bowling balls placed on foam mattresses or trampolines to illustrate space-time curved fabrics. Otherwise, straight curves and distorted light will spread in the distorted space and time.
In this scene, the closer Galaxy SDSS J020941.27+001558.4 acts like a huge magnifying glass in the sky. This allows scientists to see more distant galaxies, making them appear brighter.
However, gravitational lenses are known to work on the eyes: they have the power to copy objects, and funhouse mirrors can create multiple irregular images.
Mixable light speed
Now astronomers are good at discovering the obvious effects of gravity lenses, but not always. Forty years ago, the concentric arc of light and stretched celestial bodies could have been confusing.
In 1987, the huge blue arc, considered to be multi-trillion-mile long, was first considered one of the largest objects ever found in space. An arc was found near the galaxy cluster Abell 370, and another similar object was found near the Galaxy cluster 2242-02.
Later that year, Stanford University scientists and Arizona’s National Optical Astronomical Observatory said it was actually a twisted optical hallucination by Abel 370. The New York Times published a About The meaning of “weird” Einstein’s theory, titled “The vast universe object is downgraded to the Haishi Rage Building.”
The Einstein ring occurs when a lens object is aligned with its magnified object. Depending on their exact alignment, the Einstein ring looks like a complete or partial circle around an object in the foreground.
This particular Einstein ring was discovered by citizen scientists Space Twisted. The project relies on crowdsourcing to search for gravity lenses in space images.
Gravitational lenses have become a convenient tool for studying galaxies that would otherwise be too weak or far away to detect the range of telescopes. Since light from this distant source takes time to reach Hubble, astronomers are seeing her 020941.1+001557, because it was about 11 billion years ago, long before the Sun and Earth were born in the universe.
And – Surprise – There is actually a third Galaxy Photo bombarding this photo. It is called SDSS J020941.23+001600.7 and it seems to be part of that red curve.
