Q&A

What would happen if the sun went supernova right now?

What would happen if the sun went supernova right now?

If the Sun went supernova it would have a much more dramatic effect. We would have no ozone. With no ozone, skin-cancer cases would skyrocket. All living things would suffer from severe radiation burns, unless they were underground or in protective suits.

Is the Sun expected to someday explode as a supernova?

The Sun as a red giant will then… go supernova? 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.

Would Earth survive if the Sun went supernova?

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Chances of survival will near zero. Even if the Earth miraculously survived, and life found a way to go on without the energy from the sun, the resulting radiation would decimate the planet. A supernova 30 light years away would probably result in a destruction of the ozone layer and mass extinctions.

Will we witness a supernova?

Distant ‘Requiem’ supernova will be visible again in 2037, astronomers predict. The supernova is visible thanks to a giant galaxy cluster that acts like a magnifying glass. A distant supernova previously imaged by the Hubble Space Telescope will be visible again from Earth in 2037, astronomers predict.

When was the last supernova seen?

1604
The most recent supernova to be seen in the Milky Way galaxy was SN 1604, which was observed on October 9, 1604.

Can the Sun explode at any moment?

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”. Our star will swell up, becoming something called a “Red Giant” star. It might even get so big that it swallows the Earth whole.

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Will sun become a black hole?

Will the Sun become a black hole? No, it’s too small for that! The Sun would need to be about 20 times more massive to end its life as a black hole. In some 6 billion years it will end up as a white dwarf — a small, dense remnant of a star that glows from leftover heat.

When will our Sun Go Supernova?

Our sun cannot go supernova, or even plain old nova. It’s not that kind of star, it’s far too small. When it uses up all of its hydrogen, in something like 5 billion years, it will expand into a red giant that will consume Mercury and Venus, and possibly the Earth, and then over another few hundred million years, collapse into a white dwarf.

Will the Earth be roasted by a supernova?

But if roasted by a supernova is how Earth will go, the danger is truly in the distant future. No exploding stars will kill us in our lifetime, and we hope that this is at least a little bit comforting.

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Can a supernova leave behind the densest objects in the universe?

A supernova of a star more than about 10 times the size of our sun may leave behind the densest objects in the universe— black holes. The Crab Nebula is the leftover, or remnant, of a massive star in our Milky Way that died 6,500 light-years away. Astronomers and careful observers saw the supernova in the year 1054.

What causes a supernova remnant to continue to glow?

Surrounding material plus continued emission of EM radiation both play a role in the remnant’s continued illumination. A supernova is the typical fate for a star greater than about 10 solar masses, although there are some exceptions. NASA, ESA, and the Hubble Heritage STScI/AURA)-ESA/Hubble Collaboration.