
Wanda Díaz-Merced is an astronomer. But she does not see the stars. She hears them! When Díaz-Merced was young, she lost her sight. She uses a computer to turn data about stars into sounds.
Photo Credit: NG Images/Alamy Stock Photo
Cars were designed by engineers too. What problem did they … read more
The Sun gives us heat and light. When the Sun … read more
Chemistry is the study of matter. Matter is anything that … read more
© 2026 McGraw-Hill Education. All Rights Reserved.