Spectral

This December, NASA is launching an instrument to the International Space Station to continue monitoring the Sun’s energy input to the Earth system. The Total and Spectral solar Irradiance Sensor (TSIS-1) will precisely measure what scientists call “total solar irradiance.”

They all agreed that it was a huge creature, luminous, ghastly, and spectral.

Satellite instruments measure light emitted or reflected back to space at different wavelengths and create spectral reflectance curves.

Alpha Centauri A is the same spectral type as, and similar in size to the Sun.

Finally, chaotic court trials were held. The afflicted girls would writhe and scream. Some reported seeing spectral shapes under the accused control.

If you like astrobiology, maybe read the document "Venus’ Spectral Signatures and the Potential for Life in the Clouds."

The Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx) is scheduled to fire its thrusters for about seven minutes, taking it out of the asteroid’s orbit and setting it on a homeward course.

This collage of images from NASA's Cassini spacecraft shows Saturn's northern hemisphere and rings as viewed with four different spectral filters.

The spectral chain-rattling and moans gave me the chills.

The day itself was miserably dull; a thick fog shut out the landscape, while a few of the nearer trees alone were visible, spreading out their thin spectral arms on the murky air.