Physics

Studying fireflies helped scientists increase light extraction in LEDs by more than 50%
Studying fireflies helped scientists increase light extraction in LEDs by more than 50%

What is a Black Hole? And where are they?

As the first photo of a Black Hole is unveiled, Good Morning Wales goes back to basics
Astronomers have taken the first ever image of a black hole, located in a distant galaxy.
It measures 40 billion km across - three million times the size of the Earth - and has been described by scientists as 'a monster'. Good Morning Wales asked Elizabeth Pearson from Sky at Night magazine exactly what Black Holes are - and where they are - and what we might learn from this new image.
How much did Einstein's first wife Mileva contribute to his discoveries?
There is debate around how much Albert Einstein's first wife, Mileva, contributed to his discoveries.