The Largest comet Bernardinelli-Bernstein will it hit earth, It is the largest comet which is confirmed by Nasa Hubble space telescope.
The central part of the comet is called nucleus, which is 50 times more larger then most known comets still now.
What is comet
A comet is an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process that is called outgassing. This produces a visible atmosphere or coma, and sometimes also a tail. These phenomena are due to the effects of solar radiation and the solar wind acting upon the nucleus of the comet. Comet nuclei range from a few hundred meters to tens of kilometers across and are composed of loose collections of ice, dust, and small rocky particles. The coma may be up to 15 times Earth’s diameter, while the tail may stretch beyond one astronomical unit. If sufficiently bright, a comet may be seen from Earth without the aid of a telescope and may subtend an arc of 30° (60 Moons) across the sky. Comets have been observed and recorded since ancient times by many cultures and religions.
Hubble Space Telescope
Hubble Space Telescope is a large, space-based observatory, which has revolutionized astronomy since its launch and deployment by the space shuttle Discovery in 1990. Far above rain clouds, light pollution, and atmospheric distortions, Hubble has a crystal-clear view of the universe. Scientists have used Hubble to observe some of the most distant stars and galaxies yet seen, as well as the planets in our solar system.
Bernardinelli-Bernstein will it hit earth
Bernardinelli-Bernstein is the name of the comet which Is officially known as C/2014UN271, it was discovered accidently in 20 october 2014, by astronomers Pedro Bernardinelli and Gary Bernstein as per the estimation it as diameter of 129 kilometres and mass of 500 trillion tones, and its temperature is minus 348 degree Fahrenheit.
It is travelling at a speed of 2200 miles per hour.
It has likely expectation and more of less change to hit the earth, which will not occur till 2031.