Category: News

Could have meaning?

1: Could have + past participle means that something was possible in the past, or you had the ability to do something in the past, but that you didn'...

How far away is super Earth?

A dim, frozen super-Earth orbits a fast-moving star just 6 light-years away. How long would it take to get to super-Earth? So 1,400 light-years equals abo...