What Is the largest Known Object in the Universe? #physics #science #sciencefacts #space #astronomy

Added: 2026-05-19

[00:00:00]What is the largest known object in the universe? Meet Stevenson 2-18, a red supergiant [music] star over 3 billion kilometers wide. It is so enormous that if you placed it at the center of our solar system, its surface would extend beyond the orbit of Saturn.

[00:00:15]>> [music] >> But despite its size, it is unstable and in the final stage of its life. Within the next few hundred thousand years, [music] it will collapse under its own gravity and likely explode as a supernova, briefly [music] shining brighter than an entire galaxy.