Home Tags Speed of Light

Tag: Speed of Light

An image composite of Pluto (right) and its moon Charon (left).

A ‘ridiculous’ yet simple animation by a NASA scientist shows how long it takes light to reach Pluto. If you plan to watch it, take a day ...

A scientist at NASA animated how long it takes light to travel from the sun to Pluto. The six-hour movie shows just how slow light-speed can be.
An illustration of Earth and the moon.

The speed of light is torturously slow, and these 3 simple animations by a scientist at NASA prove it

A scientist at NASA animated how long it takes light to travel around Earth, to the moon, and to Mars. The movies show just how slow light can be.
A simulation showing a hot blob of gas falling toward a black hole at 30% of the speed of light.

A ‘mind-boggling’ telescope observation has revealed the point of no return for our galaxy’s monster black hole

Telescopes just got the best-ever look at gas circling the edge of a supermassive black hole — a point of no return just before the event horizon.

Supermassive black holes are hiding from astronomers in graveyards of dead stars

Astronomers have so much trouble seeing the biggest black holes in the universe because doughnut-shaped clouds of stardust are getting in the way.

The edge of the universe is closer than scientists previously thought

The visible universe just shrunk by 320 million light-years in all directions, updating a famous calculation that physicists first made 13 years ago.