What would happen if an asteroid was heading to Earth?

An impact by a sufficiently large asteroid or other NEOs would cause, depending on its impact location, massive tsunamis or multiple firestorms, and an impact winter caused by the sunlight-blocking effect of large quantities of pulverized rock dust and other debris placed into the stratosphere.

How long will it take asteroid Earth to complete one revolution?

Rotation period of selected objects

Celestial objects	Rotation period with respect to distant stars, the sidereal period (compared to Earth days)
Earth	0.99726968 days
Moon	27.321661 days (equal to sidereal orbital period due to spin-orbit locking, a sidereal lunar month)
Mars	1.02595675 days
Ceres	0.37809 days

Is there a giant asteroid headed our way?

There’s a Giant Asteroid Headed Our Way!!! There’s a notable, near-ish-collision on Earth — or at least one that’s looming — and the object that may be about to crash is traveling at 18,000 MPH!!! NASA has sounded an alarm that a giant asteroid is about to pass Earth.

How dangerous are asteroids to humans?

An asteroid impact has the potential to destroy life on an entire planet, hence asteroids have been an object of fear for humans. Currently, NASA is tracking the course of several hundreds of asteroids that could potentially be hazardous to human life on Earth.

Will an asteroid hit Earth on October 20?

Day ONE of simulation – April 19, 2021: The asteroid – named 2021PDC – was discovered by the near-Earth object survey project, operated by the University of Hawaii for NASA’s Planetary Defense Program. The simulated asteroid was found to be 35 million miles away and at this time it had just a five percent chance of impacting Earth on October 20.

Could a nuclear bomb stop a giant asteroid from hitting Earth?

NASA scientists have concluded that even a nuclear bomb wouldn’t be able to stop a giant asteroid from destroying a huge chunk of Earth. In a simulated exercise, US and European scientists were told they had six months to come up with a lifesaving plan to stop a massive rock smashing into Earth that had been spotted 35 million miles away.