What threatens the earth this year? A comet is approaching the earth at high speed

For example, renowned Christian leader Pat Robertson argues that asteroid impacts on Earth will eventually occur as there is nothing else that will cause the seas to be agitated, causing a dark blackout, the moon and sun to give their light as events described in the Bible. However, Hawking is not alarmist, since he believes that such a disaster will last for thousands of years.

By this time we should have spread into space and to other stars, so a catastrophe on Earth would not mean the end of the human race. The odds were given as 1 in 250 million, but even then this asteroid impact on Earth would hardly have been Armageddon.

Whether this will happen at all, or when it will happen, depends on the exact circumstances of the flyby. Györgyi-Rice explained that the “probabilities are very low” for all potential impact factors in the coming years. Although this asteroid does not currently pose a threat to Earth, scientists hope to gather information to refine its orbit. With government agencies, they are also preparing for the day when an asteroid of the same size could enter the Earth's atmosphere.

One of the biggest reminders that such small, rocky bodies orbiting the Sun pose a threat to Earth came on February 15th. An asteroid many times brighter than the sun pierces the early morning sky over Chelyabinsk, Russia.

People rushed to their windows, curious to see what lit up the sky so brilliantly. Minutes later, an airburst shattered windows, injuring thousands. Astronomers must make further observations of their predictions. The next close pass of this asteroid will be using current observations, astronomers predict the likelihood of an impact, and then only one in 2.

An asteroid's orbit can be changed by several factors: this will change as a result of passing so close to Earth. Sunlight also affects the orbit through a process known as the Yarkovsky effect, and in the short term this is negligible.

Some time in the next few years we'll have a conversation where it's, 'This thing is going to hit in two days, and what do we do?' And a lot of what we do will be learned in this exercise this week,” Brown said. . A house-sized asteroid passes close to Earth.

NASA scientists say there is no risk of impact, but the flyby gives them a chance to test their asteroid warning systems. A global network of telescopes will closely monitor the object. It is estimated to be between 15 and 30 m, which is relatively small.

However, even space rocks on this scale are dangerous if they strike. NASA scientists who have spent the last two months tracking this new rocky visitor say their calculations show it will clean up Earth safely and pose no threat.

Instead, they will use this close approach to referee future potential strikes. This will help them clarify how asteroids are tracked and enable them to test international communications systems. Dr Chodas said that although the risk of being hit by an asteroid was small, it would be wise to plan ahead.

"NASA's search programs are getting better and better at finding asteroids," he explained. The first priority was to find large asteroids. So far, NASA research has found that 95% of asteroids are one kilometer or larger - those that could cause a global catastrophe.

Now we are working our way to smaller ones - 130 m in size and larger ones - and by about 30%. This one is small - we're not trying to find all of these sizes. It's just a convenient asteroid for us to practice our tracking techniques on. He added that if an asteroid was discovered heading for Earth, scientists would consider different methods to prevent disaster.

If we had enough warning time - five or ten years - then we could do something about it, especially if it was on the small side. “We could go up and move it, change the speed of our years forward, and that would be enough to move it off the collision course.”

This may seem like a convenient miss, but at its closest approach the asteroid is just under 3½ Earth's diameters, directly above the orbits of communications satellites. This diagram shows stars up to magnitude A and the topocentric ephemeris for the asteroid that appears at the bottom of the page.

But for now we can relax and pass in complete safety. Young galaxies appear to be at the junction of giant filaments in the web of dark matter. These findings are important for understanding how huge galaxies like these form and how they evolve into huge elliptical galaxies.

Marsden, Director of the Central Bureau of Astronomical Telegrams at the Smithsonian Astrophysical Observatory, Cambridge, NY. Massachusetts, warned in an interview that estimates of asteroid progress are estimates and that there is no immediate cause for alarm.

It's impossible to calculate the odds of an impact, Dr. But he turned to astronomers with large telescopes to measure the brightness and size of the asteroid, estimated to be a mile in diameter, and refine the dimensions of its orbit. There is ample evidence that the Earth is frequently bombarded by asteroids and comets, some of which may have contributed to the mass extinction.