Is the misalignment of the Local Group velocity and the 2MASS Redshift Survey dipole typical in a LambdaCDM model?
Is the present cosmic expansion decelerating?
Is the Radial Profile of the Phase-Space Density of Dark Matter Halos a Power-Law?
Is the Spectrum of Gravitational Waves the "Holy Grail" of Inflation?
Is the Universe homogeneous?
Is the universe rotating?
Is there a black hole in NGC 4382?
Is there a flatness problem in classical cosmology?
Is there a metallicity gradient in the LMC?
Is there a spatial gradient in values of the fine-structure constant? A reanalysis of the results
Is there further evidence for spatial variation of fundamental constants?
ISM enrichment and local pollution in dwarf galaxies
ISM properties in hydrodynamic galaxy simulations: Turbulence cascades, cloud formation, role of gravity and feedback
Isocurvature modes and Baryon Acoustic Oscillations
Isocurvature modes and Baryon Acoustic Oscillations II: gains from combining CMB and Large Scale Structure
Isocurvature modes in the CMB bispectrum
Isocurvature Perturbations and Non-Gaussianity of Gravitationally Produced Nonthermal Dark Matter
Isocurvature perturbations in extra radiation
Isolated dwarf galaxies in the local supercluster and its surroundings
Isolated Galaxies and Isolated Satellite Systems