EXTINCTION WARNING: Scientists stunned to find more DEADLY comets than previously thought

comet 1

There are seven times more comets than previously thought.

 

A new study from Nasa has revealed that there are SEVEN times more large comets whizzing around the solar system than had originally been estimated.

The reason that they have taken so long to be discovered is they can take hundreds or even thousands of years to orbit the sun so they have just come into scientists’ view.
Using the Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE), experts from Nasa’s Jet Propulsion Laboratory helped to discover more of the space objects which are over a kilometre in length.

The experts believe that most of these comets have drifted in from the Oort Cloud – a huge disc of debris that surrounds the solar system.

comet 2

“The number of comets speaks to the amount of material left over from the solar system’s formation.”

Lead researcher James Bauer from the University of Maryland said: “We now know that there are more relatively large chunks of ancient material coming from the Oort Cloud than we thought.

“The number of comets speaks to the amount of material left over from the solar system’s formation.”

comet 3

The comets could approach Earth in the future.

 

Study co-author Amy Mainzer added that the comets could pose a risk to Earth in the distant future.

She said: “Comets travel much faster than asteroids, and some of them are very big.

“Studies like this will help us define what kind of hazard long-period comets may pose.”
The team also discovered that far out comets are much bigger in size in comparison to what is known as ‘Jupiter family comets’.

Jupiter family comets are drawn closer to the sun by the largest planet in the solar system, meaning that a lot of their material is likely stripped away.

Mr Bauer said: “Our results mean there’s an evolutionary difference between Jupiter family and long-period comets.”

Source

Comments

comments

mystery