When it has all its receiver bands enabled, ALMA will capture radiation from space in longer wavelengths, from a few hundred micrometers to approximately 1 millimeter (close to one thousand times longer
than visible light waves).
Not exact matches
Through all these ups and downs, the essential mission of Spitzer remained constant: to learn more about the universe by detecting infrared rays, electromagnetic
waves slightly longer
than visible light.
After the serendipitous discovery of radio
waves coming from the Milky Way's center in the 1930s, scientists realized radio
waves, which have a longer wavelength
than visible light, could reveal many aspects of cosmic phenomena not
visible in other wavelengths.
When the layers have thicknesses below the wavelength of
visible light — 400 - 700 nanometers — they interact with its
wave properties rather
than treating it as a straight ray.
Those unique properties have proven conducive to working with THz
light waves, which have longer wavelengths
than visible light and therefore require new imaging technology.
The APEX telescope in Chile has mapped the full area of the Galactic Plane
visible from the southern hemisphere for the first time at submillimetre wavelengths — between infrared
light and radio
waves — and in finer detail
than recent space - based surveys.
(The
waves of ultraviolet
light are more energetic and shorter
than those of
visible light.)
This portion of the spectrum, which is more energetic
than most radio
waves yet less energetic
than visible and infrared
light, holds the key to understanding a great variety of fundamental processes, including planet and star formation, and the formation and evolution of galaxies and galaxy clusters in the early Universe.
Also you focused on re-radiating meaning emitting long -
wave spectrum - which possible, but I was thinking more about emitting the same wavelength, as mentioned in this quote: «However, aerosols (which often contain water and if so can absorb red wavelengths) are usually larger
than visible wavelengths and therefore absorb and reflect all wavelengths of
light equally (this is not technically scattering, although it is often called that; it technically involves absorption and re-radiation, or reflection).»