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