Scientists have conducted a lot of researches and study to estimate that the Sun is not going to explode for another 5 to 7 billion years. When the Sun does cease to exist, it will first expand in size and use up all the hydrogen present at its core, and then eventually shrink down and become a dying star.

Is the Sun gonna explode in 2020?

Actually, no—it doesn't have enough mass to explode. Instead, it will lose its outer layers and condense into a white dwarf star about the same size as our planet is now. ... A planetary nebula is the glowing gas around a dying, Sun-like star.

Will the Sun explode yes or no?

The Sun won't explode. Some stars do explode at the end of their lives, an explosion that outshines all the other stars in their galaxy added together - something we call a “supernova”. That spectacular fate only happens for the most massive stars, however.