Scattering of photons in Earth’s atmosphere makes it challenging to assess balloon-borne gamma-ray observations, and modeling shows that scattering is especially impactful for lower energies.

Laboratory studies suggest that crystals of halite — the mineral form of sodium chloride and an unrefined version of table salt — may be the best way to preserve and transport potential Martian microbial life.

Inferred yields of oxygen and iron from core-collapse supernovae agree with expectations for a model in which many stars that are lighter than 40 solar masses implode rather than explode.

The five newly discovered dwarf galaxies are star forming, blue, and gas rich, and they are all curiously aligned in a straight line across the plane of the sky, with three of them rotating in the same direction.

Precession of the disk around one member in a binary system — caused by tidal torques of the star’s neutron-star companion — may be responsible for the long-term flux variations of the system.

Researchers present the first exoplanet candidate from a new neural network pipeline; the newly identified planet is likely five times wider and 29 times more massive than Earth.