Know what is Brahmastra and its firepower brahmastra
Probably the world’s first atomic bomb was dropped by Ashwatthama. In modern times J. Robert Oppenheimer made a thorough study of the Gita and the Mahabharata. He researched the destructive power of the Brahmastra mentioned in the Mahabharata and named his mission Trinity (Tridev). Between 1939 and 1945, a team of scientists under the leadership of Robert did this work. It was first tested on 16 July 1945.
After research, foreign scientists believe that the atomic bomb was actually used in Mahabharata. 42 years ago, Pune-based doctor and writer Padmakar Vishnu Vartak had said on the basis of his research that the Brahmastra used during the Mahabharata was similar to an atomic bomb. Dr. Vartak wrote a book ‘Swayambhu’ in 1969-70. It is mentioned in this.
Somewhere in ancient India, there is a description of the use of Brahmastra. Even in Ramayana, when Lakshman wanted to use Brahmastra to fight with Meghnad, Shri Ram stopped him saying that it is not appropriate to use it now, because it will clear the whole of Lanka.
Brahmastra is a nuclear weapon which has been called a divine weapon. It is believed that this is the infallible and most terrible weapon. The person who released this weapon also had the ability to take it back but did not remember the way to take it back Ashwathama which resulted in the death of lakhs of people. In the Ramayana and Mahabharata, this weapon was with a few warriors.
While Vibhishana and Lakshmana had this weapon in the Ramayana period, it was with Dronacharya, Ashwatthama, Krishna, Kuvalashva, Yudhishthira, Karna, Pradyumna and Arjuna in the Mahabharata period. Arjuna got it from Drona. Dronacharya got it from Ram Jamadagneya. It is also said that this weapon was presented to Arjuna by Indra.
There were many types of Brahmastras. Small and large and widespread. Desirable, chemical, divine and magic-weapon etc. It is believed that due to the collision of two Brahmastras, a situation of catastrophe arises. Due to this there is a fear of the end of the whole earth. In the Mahabharata, the results of Brahmastra are given from chapters 13 to 15 of Souptik Parva.
firepower of brahmastra
It is described in the Vedas and Puranas, etc., that Lord Brahma, the father of the universe, created the Brahmastra to destroy the demons . Brahmastra means the weapon of Brahma (God). In ancient times, weapons were more destructive than weapons. Weapons were made of metals, but the science of making weapons was different.
Initially Brahmastra used to be with the gods and goddesses only. Each deities had a weapon according to their specialty. The gods first presented this weapon to the Gandharvas. Later it was acquired by humans.
Each weapon has the authority of a different god or goddess and is operated through mantras, tantras and yantras. Brahmastra is an infallible weapon, which is released only after destroying the enemy. It can be counteracted only by another Brahmastra, otherwise not.
Maharishi Ved Vyas writes that where Brahmastra is released, there is no rain for 12 years (the origin of animals, plants, etc.). It is mentioned in the Mahabharata that due to Brahmastra, the wombs of the women living in the village were killed.
It is worth noting that the wombs were killed in Hiroshima due to radiation fall out and there was famine in that area for 12 years.
* Research in the Indus Valley Civilization (Mohenjo-daro, Harappa etc.) has found many such cities, which were in existence around 5000 to 7000 BC. From the condition of the skeletons found in these cities, it is known that as if they were killed by some accidental blow. There is also evidence that there was a fierce heat generated here at some point. By studying these hellfires, it was found that there was also an effect of radiation on them.
On the other hand, according to researchers, about 10 miles west of Jodhpur in Rajasthan, there is an area of three square miles, where a thick layer of radio activity ash is frozen. Seeing this layer, an ancient city was excavated near it, whose all the buildings and about 5 lakh inhabitants were destroyed due to an explosion about 8,000 to 12,000 years ago today.
* A giant crater with a circumference of about 2154 meters, located about 400 km north of Mumbai, has been found. According to researchers, its age is about 50,000 years. The research of this pit shows that there was a nuclear war in India in ancient times.
Brahmastra is a divine weapon, which has always been accurate and gives desired results. In Ramayana and Mahabharata period it was with few warriors. It is bestowed by the deities and Gandharvas. In the Ramayana period it was with Vibhishana and Lakshmana . Dronacharya got it from Ram Jamadagneya. Arjuna got it from Drona. It is also said that this weapon was presented to him by Indra . Arjuna, Krishna , Kuvalashva, Yudhishthira , Karna , Pradyumna etc. used ‘Brahmastra’ from time to time to destroy their enemies . 
mantric weapon brahmastra
Brahmastra is infallible and a formidable weapon . It leaves only after destroying the enemy. It can be counteracted only by another Brahmastra, otherwise not. These are the weapons, which are used by mantras . These are divine. Different God or Goddess has authority over each weapon and it is operated by the mantra-tantra. In fact, they are called Divya and Mantrik-Astra.
cataclysmic weapon brahmastra
When two Brahmastras collide with each other, a situation of catastrophe arises. Due to this there is a fear of the end of the whole earth. If this happens, then again a new earth and living beings will have to be created. A very interesting description of Brahmastra has come in the war of Mahabharata , which is as follows-
The war of Mahabharata lasted for eighteen days. When Ashwatthama came to know about the unrighteous killing of Duryodhana , he became blind with anger. He killed all the Panchalas  sleeping in the camp . When Draupadi got the news, she went on a fast unto death and said that she would break the fast only when she would get the everlasting gem on Ashwatthama’s head. Ashwatthama used Brahmastra on Arjuna in the battle of Kaurava – Pandava . Arjuna solved the Brahmastra with the Pashupat weapon given to him by Shiva .  In order to destroy the Pandavas from the root, Ashwatthama pregnant Uttara But was also shot. Ashwatthama released the Brahmastra, in response Arjuna also left. Ashwatthama left to destroy the Pandavas and Arjuna to destroy his Brahmastra. At the behest of Narada and Vyasa , Arjuna annihilated his Brahmastra, but Ashwatthama left to destroy the wombs of the Pandava family, stating the lack of ability to withdraw.
Krishna said to Ashwatthama- ‘Uttara is blessed with the birth of a child named Parikshit . He will have a son. Even if he died because of your weapon use, I will give him life. He will be the king of the land and you? Low Ashwatthama! Carrying the sin of so many slaughters, you will wander in uninhabited places for three thousand years. The foul smell of blood will always be emanating from your body . You will be suffering from many diseases. Vyasa approved the words of Shri Krishna. Ashwatthama said that he wanted to be with Vyasa Muni only amongst human beings. A priceless gem was present in Ashwatthama’s head since birth, which kept him fearless from demons , demons, weapons, weapons , diseases, gods , snakes etc. same gemDraupadi asked. At the behest of Vyasa and Narada, he gave that gem to Draupadi.