Some scientists have warned Comet NEOWISE could be the last comet which could be visible to the naked eye.
Light pollution is increasingly making it difficult for astronomers and amateur stargazers alike, as artificial lighting is constantly on the increase, a team of researchers say.
According to the Natural History museum, light pollution caused by artificial lighting is increasing by an average of six percent a year.
And as things get lighter here on Earth, the sky at night seemingly gets darker.
Gareth Dorrian, postdoctoral research fellow in Space Science at the University of Birmingham, and Ian Whittaker, senior lecturer in physics from Nottingham Trent University, said everyone should have taken advantage of the comet, the first to be visible from Earth since the 90s, as it could be our last.