20 feet high by 60 feet wide: Even more prominent, ideal for creating a lasting impression in high-traffic zones. Spectacular Billboard Sizes What Is a Spectacular Billboard? A spectacular billboard is, as its name suggests, an extraordinary, super-sized billboard designed to capture attention...
Algol, modern-day astronomers learned, has a small faint companion star that orbits around it, explains Bill Hartkopf of the U.S. Naval Observatory. Every few days the smaller star passes in front of the big star, making the system dimmer. Hartkopf is interested in using CHARA to learn ...