R Aquarii - an extraordinary variable star

R Aquarii - H-alpha map of subarcsecond inner structure

R Aquarii X-ray Jets: a synoptic study

R Aquarii: Constraints on the Rotational Period of the Long-Period Variable

R Aquarii: Evidence for Differential Rotation of the SiO Maser Shell

R CrB: osservazioni del minimo 2003

R Factors Mediate Resistance to Mercury, Nickel, and Cobalt

R-modes in newborn neutron stars: nonlinear development

r-Process Elements in the Milky Way

R-Theta diamond turning system for optical surfaces.

R2 inflation in anisotropic universes

Ra-Th disequilibria systematics: Timescale of carbonatite magma formation at Oldoinyo Lengai volcano, Tanzania

Radar altimetry of large Martian craters

Radar and Optical Observation of Medium-Scale Traveling Ionospheric Disturbances and Field-Aligned Irregularities in the F Region

Radar and Optical Observations of Asteroid 1998 KY26

Radar and Optical Observations of Plasma Convection Associated with Very High-Latitude Auroral Arcs Magnetosphere-Ionosphere

Radar and photoclinometric studies of wrinkle ridges on Mars

Radar and Radio Observations of the Fragmented Comet 73P/Schwassmann-Wachmann3

Radar and satellite global equatorial F region vertical drift model

Radar constraints on asteroid regolith compositions using 433 Eros as ground truth