The phrase "powerful blast" means a very strong and forceful explosion or burst of energy.
Sentences with «powerful blast»
Players could now hold the fire button to charge up the weapon and release a more powerful blast. (snackbar-games.com)
When a star dies, its final gasps can trigger the most powerful blasts of energy in the universe. (kavlifoundation.org)
On Feb. 5, 2014 a special hangout focused on the recent detection of a dying star igniting the most powerful blast ever seen — something so powerful it radiated energy that was 500 million times that of visible light. (kavlifoundation.org)