Spiral arm structures revealed in the M31 galaxy

Spiral flows in cool core galaxy clusters

Spiral galaxies rotation curves in the Horava - Lifshitz gravity theory

Spiral-like structure in nearby clusters of galaxies

Spirals, Bridges, and Tails: A GALEX UV Atlas of Interacting Galaxies

SPIRE imaging of M82: cool dust in the wind and tidal streams

Spitzer 70 and 160-micron Observations of the COSMOS Field

Spitzer 70~$μ$m Emission as a SFR Indicator for Sub--Galactic Regions

Spitzer Deep and Wide Legacy Mid- and Far-Infrared Number Counts and Lower Limits of Cosmic Infrared Background

Spitzer Imaging of Herschel-ATLAS Gravitationally Lensed Submillimeter Sources

Spitzer Infrared Low-Resolution Spectroscopic Study of Buried AGNs in a Complete Sample of Nearby Ultraluminous Infrared Galaxies

Spitzer IRAC identification of Herschel-ATLAS SPIRE sources

Spitzer IRAC Low Surface Brightness Observations of the Virgo Cluster

Spitzer IRS 16 micron Observations of the GOODS Fields

Spitzer IRS observations of k+a galaxies: A link between PAH emission properties and AGN feedback?

Spitzer IRS Spectral Mapping of the Toomre Sequence: Spatial Variations of PAH, Gas, and Dust Properties in Nearby Major Mergers

Spitzer Mid-Infrared Spectra of Cool-Core Galaxy Clusters

Spitzer mid-IR spectroscopy of powerful 2Jy and 3CRR radio galaxies. I. Evidence against a strong starburst-AGN connection in radio-loud AGN

Spitzer MIPS 24 and 70 micron Imaging near the South Ecliptic Pole: Maps and Source Catalogs

Spitzer observations of a gravitationally lensed quasar, QSO 2237+0305