Do black holes have a direct effect on earth? If so, how?
Answers
no black hole effect cannot only seen in planet earth but other planet also because black hole has a intense Gravity which is not penetrated by light also it all the asteroids stars and Planet inside it
A black hole’s intense gravity also tends to attract gas and dust, which forms an “accretion disc” around it. Friction in the disc heats up the material, causing it to release vast amounts of radiation, which telescopes can detect. Models suggest that accretion discs could reach the size of a solar system and glow as brightly as a star.
Another giveaway is that light from stars that lie behind a black hole as seen from Earth should be deflected by its gravity. This process is called gravitational lensing, and the measurements of the deflection of light can again be used to infer the existence of the hole.
This might all sound like rather circumstantial evidence, but most (not all) astronomers now agree that the evidence is strong enough to accept that black holes exist. And they are getting closer to imaging the elusive beast directly. In recent years, they have found evidence of matter vanishing in the region of a suspected black hole, suggesting that it has been swallowed – and powerful telescopes may be able to take direct pictures of the traces of a black hole within the next few years.