Michael G. Jones et al 2024 ApJL 966 L15
A string of gas clouds stretching for more than 3,000 light-years has been found to contain stars after all; the structure is the most gas-rich stellar system yet known.
Depending on the orbital period of the binary and the mass-loss rate, binary systems can create diverse distributions of gas, including “shell-like” and “cliff-like” arrangements.
A potential supermassive black hole so early in the universe’s history would likely have to have been seeded by a black hole 10,000 to 100,000 times the mass of the Sun.
New JWST observations of the famous protoplanetary-disk-hosting protostar HL Tau reveal known disk features in greater detail and help to place limits on possible planets.
Luckily, lunar spiders aren’t real arachnids: researchers suspect that these features mark where the lunar soil has drained into a shallow subsurface void, leaving behind a depression in the surface.
A model–data comparison shows that different cosmic-ray transport models have difference strengths, and which model best matches the measurements depends on the energy, particle type, and other factors.