James Guillochon and Abraham Loeb 2015 ApJ 811 L20

Leakage from a light sail propulsion apparatus in operation around a solar system analogue within our galaxy is shown to be detectable and the expected signal is described.

Ryan S. Park et al 2015 AJ 150 121

This study uses Very Long Baseline Array measurements of Mars-orbiting rovers to accurately determine the position of Mars relative to the International Celestial Reference Frame.

M. G. Aartsen et al 2015 ApJ 811 52

Optical follow-up of a neutrino alert from IceCube found a spatially-coincident, unusual type IIn supernova — but it exploded 158 days before the neutrino detection, so it wasn’t the neutrinos’ source.

Poshih Chiang and W. P. Chen 2015 ApJ 811 L16

Two recently-discovered methane dwarfs, located in the dark cloud L 1688 of the ρ Oph star-forming region, represent the youngest T dwarfs ever confirmed.

Ye Li and Bing Zhang 2015 ApJ 810 41

The chances of a planet being exposed to a lethal GRB increases at higher redshifts. Simulations show that at z=1.5 (3), 50% (10%) of galaxies have a low enough rate of GRB exposure for life to survive.

Yuji Matsumoto et al 2015 ApJ 810 106

N-body simulations show that the eccentricities of planets that result from protoplanet mergers are much smaller than escape eccentricity due to very efficient collision damping.