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What if a 1000 km long astriod hit the earth?
The general hypothesis is that we will all die. Any remaining humans would have to revert back to a primordial existence.A 1,000 kilometers, is the distance from Washington NY to Chicago.The Chicxulub extintion asteroid, which wiped out 99% of life on Earth was a mere 10km.
What is chicxulub?
The Chicxulub is a crater. It is a prehistoric crater that has long been buried underneath the Yucatan Peninsula in Mexico.
Can you see comets all year long?
Yes, as long as an asteroid is within visible distance of earth.
Itmay have crashed into earth and caused a mass extinction a long time ago?
asteroid
What asteroid is 21 miles long and approaches as close as 75 light seconds from earth?
Sin
Why would scientists want to know if an asteroid is on a course to collide with earth in 20 years?
If an asteroid were to hit Earth, it could do HUGE damage. It was the changes to Earth after an asteroid hit that killed off the dinosaurs. But if we knew about an asteroid heading our way long enough ahead of time, maybe we could change it's course enough to make it miss, and save millions of lives.
Why would scientist want to know if an asteroid is on a course to collide with earth in 20 years?
If an asteroid were to hit Earth, it could do HUGE damage. It was the changes to Earth after an asteroid hit that killed off the dinosaurs. But if we knew about an asteroid heading our way long enough ahead of time, maybe we could change it's course enough to make it miss, and save millions of lives.
How long before the metor as big as Texas will hit earth?
There are no known asteroids the size of Texas that have even the slightest chance of hitting Earth. The only known Texas-sized asteroid is Ceres, which has a stable orbit in the asteroid belt and could never hit Earth.
How long ago did the oldest dinosaur die?
my answer is dinosaurs died 65 million years ago when an asteroid crashed into the earth
Why didn't the asteroid belt make a planet?
There are multiple theories for the material in the asteroid belt. First, note that the entire mass of the asteroid belt objects is a few percent of Earth's mass -- what is there today would not form much of a planet. One fairly good theory is that a planet did have an irregular orbit with the highest part where the asteroid belt is today. However, the planet's highly elliptical orbit brought it across the orbits of Mars and Earth. It collided with Earth, leaving much of its mass in the Earth but also spewing out material that eventually formed our Moon. A small portion of the material survives in the asteroid belt and as the small moons of Mars.
How long is the asteriod belt?
The asteroid belt is roughly circular, with a radius of about 3 AU (astronomical unit; 1 AU = 149,597,870.7 km, the mean orbital radius of Earth).The formula for the circumference of a circle is C = 2πr, or πd. Therefore, the circumference of the asteroid belt is approximately 2,819,853,430 km.(Additionally, the width of the asteroid belt is about 1.5 AU, or slightly larger than Earth's distance from the sun.)
What is the revolution of the asteroid belt around the sun?
how long does it take the asteroid belt to revolve around the sun?
