When is the doomsday of Earth? Astronomers are soon going to crack the answer of this most-mystified question. By using the most powerful radio telescope in the world, an international group of scientists has spotted the oldest dying star which may confer the preview of earth’s final day. A team of astronomers from the KU Leuven Institute of Astronomy are gearing up to explore the answers to the questions like “how the earth will end after a few billion years.”
Using the most powerful radio telescope in the world, astronomers of KU Leuven Institute of Astronomy are going to study the ten-billion-year-old star ‘L2 Puppis’ which, Five billion years ago, was quite similar to the Sun as it is today.
As said by Leen Decin, Professor at the KU Leuven Institute for Astronomy in Belgium, after Five billion years from the current time, the Sun will be grown into a massive red star, which is expected to be hundred times larger than of its current size.
Leen, while examining this matter additionally said that “the Sun will also encounter a massive loss because of the extremely stable stellar wind. And the end of this evolution will take place after seven billion years from now.” It means, after seven billion years, the sun will be a small white star. That time, the dimension of sun will be about the extent of the Earth. However, it will be much heavier than it. At that point, the weight of one teaspoon of white dwarf material will weight around five tons and this evolution will make Sun heavier than of the current time.
Taking the statement further, Leen said, “This transformation will bring up a remarkable impact on each of the planet of our astrophysical system. As expected, the planets like Mercury and Venus will be swallowed up by the giant star and smashed. Similarly, the life on earth is also projected to be destroyed by the Sun because of its bigger size and brighter nature”.
However, the survival of Earth’s rocky core after this massive evolution is still a matter of question and to get precise answers to all such questions, Leen, and her colleagues have observed the evolved star L2 Puppis which is currently residing 208 light years far from Earth.