How can we see light invisible to human eyes?
How astronomers detect radio, infrared and X-ray light, and interpret the colors of multiwavelength images.
Tag archive
#telescopes
Articles: 4
Why put telescopes in space?
How the atmosphere absorbs and blurs light, why Webb needs cooling and how it complements Hubble. A diagram and an observatory-choice example.
Why do large telescopes see more?
Larger apertures collect more photons and improve the diffraction limit, but sensitivity, detail and magnification differ. Explore atmosphere and exposure.
How does a telescope work?
How lenses and mirrors collect light and form images, what eyepieces, focus and detectors do, and why magnification adds no light.