One million Earths could fit inside the Sun – and the Sun is considered an average-size star.The hottest planet in our solar system is 450° C.
One day on Venus is longer than one year.The star has now got close enough to the black hole for “gravitational redshift” to occur which is where the star’s light loses energy as the black hole’s gravity intensified.
There is no air or atmosphere in space. Since it is a vacuum, sound waves will have no medium to travel to. That means, no one will hear you scream in space, even if you shout the loudest!
While sound waves (mechanical waves) need a medium to travel, radio waves (electromagnetic waves) can travel in the void of space. Astronauts use radios to stay in communication while in space since radio waves can still be sent and received in a vacuum environment
