If you’re wondering how many extraterrestrials there are in our galaxy, you just have to use a simple equation developed by astronomer Frank Drake in 1961

If you’re wondering how many extraterrestrials there are in our galaxy, you just have to use a simple equation developed by astronomer Frank Drake in 1961
We see the Universe in visible light with our photon detecting eyes. But there’s a whole spectrum of photons out there, from radio waves to gamma rays that astronomers use to understand the Universe. It’s time to see the whole picture.
Buying your first telescope can be a nerve-wracking experience filled with buyer’s remorse. So how to choose your first telescope? Check it out!