Scientists find a new asteroid crater that may shed light on Dinosaurs' extinction

Approximately 66 million years ago, a large asteroid, whose crater is named Chicxulub, slammed into the Earth at the end of the Cretaceous period, causing the destruction of the dinosaurs.

However, researchers have now found a new asteroid crater off the coast of West Africa that impacted the Earth around the same time, according to a study released Thursday by Science Advances. 

With dia of 8.5 km Nadir Crater is 400 km from closest land area and is sited off shore of Guinea, West Africa. Nadir is not as big as Chicxulub, but age of nearby fossils implies that it is very old.

The discovery was made by Dr. Uisdean Nicholson, professor at Heriot-Watt University in Edinburgh, UK. Originally, he was examining seismic survey data when he fell came upon evidence of the crater. 

"These surveys act similarly to an ultrasound of the Earth. I've spent the last 20 years defining them, but nothing like this has ever existed to me "Dr Nicholson. 

Some other researchers have suggested that Nadir may have crashed into Earth same as the Chicxulub Crater, but scientists can not make that determination until further inspections of African crater. 

Asteroid that caused the Chicxulub crater to fall in Mexico sizes be 12km long, creating a 200km-wide niche.It caused destructive firestorms and tsunamis causing much of the worlds species to perish.