Planets form from swirls of gas and dust known as planetesimals. This disk of dust and gas surrounds newly forming stars. But when that star gets bigger and expires, it will become a white dwarf. It can devour the planets and asteroids it creates.
Recently, astronomers from the Armagh Observatory and Planetarium Company in Northern Ireland said they used the European Southern Observatory's Very Large Telescope in Chile to observe a dead star. Which became a white dwarf. This planet was named WD 0816-310, and it is about 63 light-years away from Earth. It witnessed abnormal signals showing that the white dwarf is consuming debris from the planets orbiting around it. The marks are mineral traces on the surface of the planet. Astronomers explain that some white dwarfs cool slowly. They will devour parts of their home planets and now astronomers have discovered that the star's magnetic field plays a key role in this process. This results in “scar”-like marks on the surface of the white dwarf.
The white dwarf WD 0816-310 is the remains of an Earth-sized star. It was once similar to our Sun but the larger former star has noticeable dark spots on its surface due to concentrations of metals.
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