Researchers test the accuracy of a new standard candle by measuring the distance to the Triangulum Galaxy and show it to be a viable way to make a local measurement of the Hubble constant with JWST.
The miniaturized spectrometer and optical head of the Ma_MISS experiment will be able to distinguish single 100-micron-size grains within the hole excavated for sample analysis of the martian surface.
Researchers observed the cool evolved star ζ Aurigae A as it orbited its main-sequence companion in an effort to understand how ultraviolet radiation from the main-sequence star impacts the evolved star’s atmosphere.
New research suggests that light echoes from the reflection of stellar flares off of circumstellar debris disks should be detectable with high-speed optical systems for stars in the solar neighborhood.
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.