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
Astronomy Cast Archive
Jul 31st: Gamma-Ray Bursts
Jul 24th: Across the Electromagnetic Spectrum
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.
Jul 17th: Choosing and Using a Telescope
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!