The universe just got a little more fascinating! In 2018, astronomers witnessed the brightest and most distant black hole flare ever recorded, and it's mind-blowing! This cosmic event, observed by the Zwicky Transient Facility (ZTF) and the Catalina Real-Time Transient Survey, was a mind-blowing 30 times brighter than any previous black hole flare. Imagine a star, a massive one, wandering too close to a supermassive black hole, getting shredded, and slowly spiraling into the black hole's grasp. That's what happened, and it produced a flare that shone with the light of 10 trillion suns! But here's the mind-bending part: this black hole is a beast, estimated to be 500 million times more massive than our sun, and it's 10 billion light-years away. Because of the vast distance, we're essentially watching the past, when the universe was much younger. This phenomenon, called cosmological time dilation, means that time itself stretches as light travels across expanding space. So, what we see now is actually a past event, and the black hole is slowly devouring the star, making it a rare and intense spectacle. The researchers, led by Matthew Graham, are thrilled to have discovered this rare event, and they're using ZTF data to find more of these cosmic feasts. This discovery highlights the importance of long-lived surveys like ZTF in unraveling the mysteries of the universe. So, get ready to be amazed by the wonders of the cosmos!