Can inhomogeneities solve the horizon problem ?

Can inhomogeneties accelerate the cosmic volume expansion?

Can INTEGRAL detect 0.511 MeV radiation from giant molecular clouds?

Can INTEGRAL detect 2.223 MeV radiation from X-ray binary sources?

Can interfero-polarimetry constrain extended atmospheres' models?

Can intergalactic suprathermal grains produce extensive air showers

Can internal shocks produce the variability in GRBs?

Can ion-neutral damping help to form spicules?

Can ion-neutral damping help to form spicules?. II. Random driver

Can Jupiters be found by monitoring Galactic Bulge microlensing events from northern sites?

Can Lambda be determined from nearby Type Ia Supernovae?

Can large scintillators be used for solar-axion searches to test the cosmological axion-photon oscillation proposal?

Can large-scale structure probe CMB-constrained non-Gaussianity?

Can lensed stars be regarded as pointlike for microlensing by MACHOs?

Can Life develop in the expanded habitable zones around Red Giant Stars?

Can Light Echoes Account for the Slow Decay of Type IIn Supernovae?

Can Light-nuclei Search Experiments Constrain the Spin-independent Dark Matter Phase Space?

Can Lightcone Fluctuations be Probed with Cosmological Backgrounds?

Can lightning be a noise source for a spherical gravitational wave antenna?

Can LIGO see compact binaries?