A "once in a lifetime" sight. 

Over the past month, people around the world have been observing the C/2023 A3 (Tsuchinshan–ATLAS) comet, which passed within 44 million miles of Earth on October 12th. The comet was discovered in 2023, and people in the northern hemisphere have been observing it since October 8th. Those in the southern hemisphere were lucky enough to see it in late September. 

While scientists initially estimated that Atlas has an orbit of 80,000 years, new data suggests it isn't orbiting anything at all, and will progress out of our solar system after this pass by. 

So get your cameras out, because this is the only time you, or any of your future bloodline will ever see the Atlas comet.