For years now we’ve been hearing about “Dark Matter”.  According to Wikipedia “Dark matter is an unidentified type of matter comprising approximately 27% of the mass and energy in the observable universe[1] that is not accounted for by dark energy, baryonic matter (ordinary matter), and neutrinos.[2] The name refers to the

Venturing out and getting a Covid-19 test done can be a cumbersome task. It is also risky as one might be exposing himself to the virus at the testing center. Therefore, it makes a whole lot of sense to use at-home Covid test kit.