New imaging reveals a pattern of ionization in the Southern Crab Nebula that cannot be generated by photoionization by a central source and may instead indicate ionization at stellar-wind-generated shocks.
Observations of a high-mass star-forming region suggest that the variability of the region was caused by the propagation of an inside-out heatwave, which may indicate a burst of accretion.
The simulated satellite galaxy distribution generally does a poor job of tracing the mean density of the host galaxy, but the degree of agreement between the two quantities is dependent upon the color of the host galaxy.
Observations reveal one of the fastest jets ever detected from a planetary nebula as well as variability that is likely associated with the presence of a low-mass binary companion to the central star.
Models of marine life suggest that tilted planets may have more oxygen available, with the amount of available biospheric oxygen doubling when the tilt is increased from 0 to 45 degrees.
The discovery of a planet orbiting interior to the orbit of a previously discovered hot Jupiter casts uncertainty on the formation mechanism for the outer planet, as high-eccentricity migration is now considered unlikely.