The concept of magnification is discussed along with some scientific instruments that use it.

Visible light, which can be seen with our eyes, comprises a small sliver of the electromagnetic spectrum. The rest of the spectrum, from short wavelength gamma rays to long-wavelength radio waves, requires special instruments to detect. ALMA uses and array of radio telescopes to detect and study radio waves from space. Radio telescopes are typically large parabolic dish antennas used singly or in an array. Radio observatories are preferentially located...

"[This book] follows a team of elite scientists on their historic mission to take the first picture of a black hole, putting Einstein's theory of relativity to its ultimate test and helping to answer our deepest questions about space, time, the origins of the universe, and the nature of reality. Photographing a black hole sounds impossible, a contradiction in terms. But Shep Doeleman and a global coalition of scientists are on the cusp of doing just...

"Phoebe helps her dad set up telescopes on the sidewalk outside his store. It's a special night --Saturn and Mars are going to appear together in the sky. But will Phoebe be able to see them with all the city lights? Raindrops begin to fall, followed by lightning and thunder. Phoebe is filled with disappointment as she and her father hurry inside to wait out the storm. But suddenly the power fails and then, amazingly, the rain and clouds disappear....

This fictional journal is from the year in which Galileo constructed his own telescope and began to record his astronomical discoveries. Includes additional nonfiction biographical information.