The GALEX observatory was a recent observatory, that was launched to observe over a half-billion galaxies going back to when our
Universe was just about 3 billion years old. It used wavelengths of higher energy than visible light. Which of these could describe the
wavelengths used by the GALEX observatory to make observations in space?
A)microwaves
B)radio waves
C)infrared waves
D)ultraviolet Waves