Explore the science behind nuclear explosions and splitting the atom.

At about 950 times bigger than our Sun, Betelgeuse is one of the biggest stars in our Universe. But that comes with a price.

Defence minister says he wants to see everything from small businesses to anchor companies like Seaspan expand amid ramped-up ...

Astronomers discover a star in Andromeda that may have collapsed into a black hole instead of exploding as a supernova.

DS1, collapsed into a black hole without exploding, revealing how stars die in silent “failed supernova” events.

The event was first recorded in 2014, when a Nasa space telescope noticed a massive star in the Andromeda galaxy slowly ...

A dazzling new Hubble image peels back the layers of the mysterious Egg Nebula, a rare and fleeting phase in a Sun-like star’s death just 1,000 light-years away. Hidden inside a dense cocoon of dust, ...

A massive star 2.5 million light-years away simply vanished — and astronomers now know why. Instead of exploding in a supernova, it quietly collapsed into a black hole, shedding its outer layers in a ...

Since it turned on, the James Webb Space Telescope has revealed dozens of mysterious red blobs in space. The so-called Little ...

In 1958, as Cold War tensions shaped decisions in Washington and Moscow, a study quietly examined whether a nuclear device could be exploded on the Mo.

NASA’s first crewed moon mission in decades was delayed as its engineers grapple with an all-too-familiar rocket problem: hydrogen leaks. Fixing the issue is even trickier than it may seem.

Nearly four decades after the 1986 Chernobyl disaster, scientists have identified subtle genetic mutation clusters in the children of exposed fathers. By focusing on radiation-specific mutation ...