This Event Happens Once in 90 Million Years

In our world, incidents, and calamities like tsunamis, earthquakes, etc. happen every now and then. Sometimes the pattern of events is so similar that you can even predict some events before happening. In this process, Science has had a major role in it. Due to technological advancement scientists can predict a few things. Whether it's Global warming or another Pandemic due to rare viruses... Recently, some scientists have predicted something that might happen for the first time in 90,000,000 years. But then scientists at NASA have another discovery countering it. Watch this video to understand why scientists are worried about it.