Astronomers Discover Unusual Planet Using Einstein’s Theories

A team of astronomers has identified a strange and intriguing planet on the fringes of the galaxy, employing techniques inspired by Albert Einstein’s theories.

This planet, named AT2021UEY B, is a gas giant similar in size to Jupiter and is situated about 3,200 light years away from Earth. According to a study published in Journal Astronomy & Astrophysics, it takes approximately 4,170 days for AT2021UEY B to complete an orbit around its dwarf star.

The shadow of AT2021UEY B was first detected back in 2021, thanks to observations from the European Space Agency’s Gaia Telescope.

To uncover more details about this planet, astronomers conducted multiple observations.

Interestingly, they utilized microlensing techniques to make this discovery. This method, which is fairly novel, has only been employed a handful of times prior.

Microlensing, rooted in Einstein’s theory of relativity, hinges on the idea that massive objects traveling through space can distort the fabric of the universe—known as space-time.

Dr. Marius Maskoliunas, an astronomer from Vilnius University and a co-author of the research, shared his thoughts in a statement on Phys.org. He noted, “This kind of work demands a high level of skill, immense patience, and, honestly, a bit of luck. You have to wait a long time for the lensing objects and source stars to align for thorough analysis of the extensive data.” He also mentioned that “90% of the stars we observe fluctuate for numerous reasons, and only a very small number exhibit microlensing effects.”

According to the research, microlensing happens when large celestial bodies block the light from much more distant stars.

As the planet moves past these stars, their light curves around it and brightens, which is exactly what astronomers look for in their observations.

Maskoliunas provided an analogy to help illustrate how microlensing operates. “What intrigues me with this method is the ability to spot these invisible entities. Think of birds flying past you. You can’t see the birds themselves or their colors—just their shadows,” he explained. “But from that shadow, we can infer the possibility of what they are, like determining if it’s a sparrow or a swan at a distance. It’s a fascinating process.”

Since 1992, nearly 6,000 exoplanets have been identified using more conventional techniques like photometric and radial velocity methods.

These established methods identify planets by observing the dimming of their host stars or the gravitational wobbles caused by planets in orbit.