The 10 strangest and mysterious alien structures of 2021

The Hubble telescope orbits more than 480 km above Earth and is separated by tens of millions of light years from the many “interstellar” objects it studies, and takes “remote work” to a new level.

Strange and wonderful space discoveries poured in as astronomers pulled the curtain on monstrous black holes, invisible giant magnetic structures and found a cosmic treasure trove of extraterrestrial planets.

Here are 10 of the most amazing, extreme and mysterious space structures discovered in 2021.

1. “Pac-Man” star
The gaseous remains of an ancient supernova have been discovered that have taken on a shape instantly recognizable to fans of the classic video game Pac-Man. The object, officially known as N 63A, is the product of a star that collapsed under its own weight in the Large Magellanic Cloud, which lies 163,000 light-years from the Milky Way.

2. A planet in the nose of the Orion Nebula

Planet in the nose of the Orion Nebula

Scientists have found compelling evidence that the rarest type of planet in the universe, a single world orbiting three stars simultaneously, is located at the tip of the gaseous nose of the constellation “Orion Nebula” hunter. With three dusty orange rings intertwined with each other, the system literally looks like a giant bull’s-eye in the sky. There are 3 stars in the center of the bull’s eye, two of which are trapped in a tight binary orbit with each other, and the third revolves widely around the other two stars.

3. Ghostly Jellyfish

ghostly jellyfish

In the “Abell 2877” galaxy cluster, located in the southern sky about 300 million light-years from Earth, astronomers have discovered a space “jellyfish” visible only in a narrow band of radio light, more than a million light-years wide.

4. Black Hole Energy Cannon

black hole energy cannon

Scientists have discovered a supermassive black hole, a huge body with a mass of 6.5 billion times the mass of the sun and located 55 million light-years from Earth in the galaxy “Messier 87”, and they found a huge jet of matter and energy emitted from the center of the black hole resembles an energy cannon. The researchers said this is the longest magnetic field ever detected in galactic radiation, and provides new insight into one of the most common phenomena in the universe.

5. Magnetic twisted tunnel
Astronomers believe that a huge magnetic tunnel, 1,000 light-years long and invisible to the naked eye, could surround the solar system. It’s not clear where this magnetic “tunnel” came from, the researchers said, but such a tunnel could exist everywhere in the universe and possibly be part of an extensive network of intersecting magnetic field lines.

6. «Basin building» of galaxies

“Maintenance Basin” of galaxies

In a study published Oct. 26 in the Journal of Astronomy and Astrophysics, scientists co-discovered a huge “shipyard” where galaxies are built, similar to the ones in which our Milky Way originated. The giant structure, called a protocluster, contains more than 60 galaxies and 11 billion light-years from Earth, putting it in a part of the universe that is only 3 billion years old.

7. “Cavity” in the “Milky Way”

“Cavity” in the “Milky Way”

Two gas clouds appear alongside the Milky Way. These massive provinces of star-forming gases, known as “molecular clusters”, extend across the sky and seem to form a bridge between the planets Taurus and Perseus. New 3D maps of the region, courtesy of the European Space Agency’s Gaia space observatory, show that these flowing clouds are hundreds of light years apart.

8. A “barrier” protects the galaxy

A “barrier” protects the galaxy

The researchers attempted to map the intensity of cosmic rays near the galactic center, and discovered a mysterious “barrier” to keep a significant portion of incoming cosmic rays from ever entering the center. The team was only able to speculate on the source of this cosmic ray barrier, but they suggested that it could be a mixture of magnetic fields related to our galaxy’s central black hole.

9. A “mysterious hut” close to the moon

Mysterious hut near the moon

The Chinese rover “Yutu 2” spotted a cube-shaped object on October 29, with the object protruding above a uniform horizon. It looks like a “mysterious hut” from the moon’s many rocks, and it will take Yutu2 several months to get a closer look at the discovered object.

10. The ‘Spaghetti’ star’s first scene

The first scene of the “Spaghetti” star

When an unlucky star ventures too close to one of the voracious black holes, the black hole’s intense gravity stretches the star into a long pasta shape.
And last May, researchers saw that this disorderly process occurs directly for the first time, when a black hole 750 million light-years from Earth and weighing 30 million times the mass of the sun trap a passing star in its clutches.

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