(CNN) — Hovering blue flames that flicker over bogs and marshes have inspired ghostly folktales for centuries. Known as “will-o’-the-wisp,” “jack-o’-lantern,” “corpse candle” and “ignis fatuus” ...

We’re still not sure exactly what dark energy is, but it may have played a key role in the early universe. The resulting dilemma is called the Hubble tension, and Niedermann and Sloth say they may ...

If you are an entrepreneur, investor, or anyone who works in close vicinity to any kind of technology, you can’t really go an entire day without hearing the phrase “bubble” thrown into the air at ...

Everyone in tech agrees we’re in a bubble. They just can’t agree on what it looks like — or what happens when it pops.