Around 66 million years ago, scientists believe an asteroid, approximately 7-9 miles wide, crashed into earth, just east of Mexico. It was the final blow which made dinosaurs extinct. It just didn’t impact dinosaurs. Most scientists believe around 80% of life on the planet, possibly more, also became extinct, eventually leading to new forms in the evolutionary process. Shhhhhhh, don’t mention the science of evolution to Trump lovers.  That wasn’t the only reason for the dinosaur extinction, but it was the primary one.

Why do we care about the above? Because an asteroid which crashes into the planet earth can do massive damage, possibly even destroying all forms of life.  Scientists estimate an asteroid 55-60 miles wide would destroy every civilization on the planet. Asteroids/Comets are constantly headed in our direction. The last known asteroid which caused serious damage entered Earth’s atmosphere over Chelyabinsk, Russia in 2013. That’s approximately 930 miles east of Moscow. It exploded in the air, releasing 20 to 30 times more energy than that of the first atomic bombs, generating brightness greater than the sun, generating heat, damaging more than 7,000 buildings, and injuring approximately 1,000 people. The shock wave broke windows almost 60 miles away. The asteroid wasn’t detected because it apparently came from the same direction as the sun.

In light of this major threat, NASA will launch a new telescope in 2026, which will be our first line of defense in protecting the planet. The primary mission is to search the solar system for potentially dangerous asteroids or comets headed towards earth. The Near-Earth Object Surveyor space telescope (NEO) was approved by NASA, and is currently in the design phase. The infrared telescope will help scientists find asteroids and comets which come within 30 million miles of the Earth’s orbit. Yes, 30 million miles is considered close enough to pose a danger. There’s no guarantee this telescope will find all dangerous objects headed our way (remember the one which exploded over Russia in 2013), but they hope to have a success rate above 90%.

Unfortunately, finding asteroids or comets headed our way is only part of the equation. The second part is can we change the path of the asteroid or comet. I’m sorry to say, we still don’t know if that’s possible. There are some proposed strategies, but as of today, they are only theories.  NASA will soon conduct some experiments to see if we can find a methodology that can reliably re-direct an asteroid away from our planet.

Please keep in mind, when they find an asteroid headed our way, NASA needs lots of time to prepare a mission to hopefully redirect the asteroid or comet. If they find an asteroid headed our way, scheduled to arrive, in let’s say only 4-6 months, that would not be nearly enough time to prepare a mission. If that happens, we may not be around to worry about climate change.