Astronomical Objects Through the History of the Universe - NASA Science

Different types of telescopes - ABC Education

English Enjoyed with Thomas on Instagram: "The Suffixes That Define Us Add a few letters and suddenly you’ve got a job. Teach → Teacher Detect → Detective Correspond → Correspondent In English, we love a good suffix—those charming little endings that tell the world what sort of person you are, or at the very least, what sort of person you claim to be. Sadly, there’s no definitive rule for which suffix to use—English just expects you to *know*, like how to pair port with pudding, or how to depart

Astronomers use old-time math to measure distance, age of ancient star cluster | CBC News