Spectral distortions of the cosmic microwave background

Spectral distortions to the CMB from the Recombination of H & He i

Spectral Diversity in the Columbia Hills from Spirit's Mini-TES and PanCam

Spectral Energy Distributions of Galactic X-ray Binaries

Spectral evidence for weathered basalt as an alternative to andesite in the northern lowlands of Mars

Spectral Evidence for Zeolite in the Dust on Mars

Spectral evidence for zeolite in the dust on Mars

Spectral evidence of size dependent space weathering processes on asteroid surfaces

Spectral Evolution of an Earth-like Planet

Spectral evolution of galaxies. I - Early-type systems

Spectral evolution of galaxies. III - Cosmological predictions for the Space Telescope faint object camera

Spectral evolution of young stellar objects

Spectral evolution of young stellar objects

Spectral Feature Mapping with Mars Global Surveyor Thermal Emission Spectra: Mineralogic Implications

Spectral gradient of lunar radiobrightness - Heat flow or volume scattering

Spectral Heterogeneity of Lunar Local Dark Mantle Deposits

Spectral identification of geological units on the surface of Mars related to the presence of silicates from earth-based near-infrared telescopic charge-coupled device imaging

Spectral Index Asymmetries in Powerful Radio Sources: Cosmological Evolution Versus Luminosity Selection Effects

Spectral Indicators in Type Ia Supernovae and a Possible Link with Reddening

Spectral Indices of Outflow Sources at Centimeter Wavelengths