14K views · 115 reactions | Scientists have discovered a star that exploded, survived, and exploded again more than 50 years later, challenging what we know about the death of stars | HLN | Facebook

💥 When a star explodes… how long does it actually take? The answer depends on what part of the explosion you’re talking about! ✨ The core collapse of a massive star? Less than a second! The core compresses into a neutron star or black hole almost instantly. ✨ The explosion phase? That takes seconds to minutes. A shockwave, re-energised by a flood of neutrinos, blasts the star’s outer layers into space. ✨ The bright phase we see from Earth? That unfolds over days to weeks, staying visible for mo

Nasa reveals what an exploding star looks like for the first time | The Independent

18K views · 302 reactions | Supernova supernova is a powerful and...

What Is a Supernova? Simply Explained A supernova is the most spectacular kind of explosion in the universe — a dying star releasing an unimaginable amount of energy. #supernova #star #physics #space #astrophysics #science #universe | Academic Avengers