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The first JWST data include not just pretty pictures but also spectra, measurements of how much light an object emits at various wavelengths.How James Webb Space Telescope data have already revealed surprises|Lisa Grossman|July 21, 2022|Science News
Tiny strands of über-durable spectra integrated into the upper kept our feet from moving excessively, and five-millimeter rubber lugs gripped all manner of sloppy surfaces.
Just turn down the lights, or place filters on LEDs that narrow the spectra of light they shine down.Streetlights, especially super bright LEDs, may harm insect populations|Jonathan Lambert|August 31, 2021|Science News
The spectra of light coming from spiral nebulae was similar enough to that of the Milky Way that they could be similar objects, he maintained.A century of astronomy revealed Earth’s place in the universe|Lisa Grossman|July 21, 2021|Science News
It includes light spectra for more than three million astronomical objects.Huge arc of galaxies is surprising and puzzling cosmologists|Lisa Grossman|July 7, 2021|Science News For Students
Stars also have distinctive spectra, determined by their temperature, size, and, to a lesser degree, their chemistry.
The result is a mosaic of spectra, covering up to 60 different regions.
The spectra of the metals of the alkaline earths are equally definite, though more complicated.
It is science when the astronomer compares the spectrum of the sun with the spectra of various metals in the laboratory.The Astronomy of the Bible|E. Walter Maunder
Gamma-ray spectra are collected all day, first from a sample, then from its accompanying standard.
The two gamma-ray spectra you obtain look like those in the figure on the opposite page.
Spectra of stars, per contra, appear relatively simple, since their feeble light is insufficient to bring out faint details.A Text-Book of Astronomy|George C. Comstock