We hear about discoveries of exoplanets every day. So how long will it take us to find another planet like Earth?

We hear about discoveries of exoplanets every day. So how long will it take us to find another planet like Earth?
Were the dark ages really dark? What is a perturbation, and how did they grow in the early universe?
Lets discuss about Treknology: The Science of Star Trek and more updates including helicopter for mars & stars from the early moment of the universe
Have you ever had a growth spurt? Maybe you kids have been making regular trips to stores to replace shoes that have become too tight or trousers that are too short?
Why are small stars red? Why are small stars so common? Why are small stars so interesting for the hunt for life?
Like a team of real-life Indiana Joneses, scientists have explored our galaxy and found a treasure trove of hidden gems.