That the universe is expanding has been known for almost a hundred years now, but how fast? The exact rate of that expansion ...

For the last 25 years, most scientists have believed that about 70% of the universe is formed by something called ‘’dark energy.’’ This invisible energy was ...

In 2014, a NASA telescope observed that the infrared light emitted by a massive star in the Andromeda galaxy gradually grew brighter. The star glowed more intensely with infrared light for around ...

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 ...

That the universe is expanding has been known for almost a hundred years now, but how fast? The exact rate of that expansion remains hotly debated ...

Astronomers are used to dramatic endings. When a massive star dies, it usually explodes ...

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

Charleston, SC, astronomy professor answers questions from high school students about wormholes, black holes, colonizing Mars, outer space odors and more.

Astronomers watching the Andromeda Galaxy have now seen something they had only theorized before: a massive star that simply vanished, apparently collapsing straight into a black hole instead of ...

The star used to be one of the brightest star in the neighboring Andromeda galaxy.

Imagine an object so colossal that, if it occupied the place of our Sun, its surface would extend beyond the orbit of Saturn. Imagine a star that challenges not only the known physical limits, but ...

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