Attempts to pin down the magnetic field of a stealth coronal mass ejection — an eruption of solar plasma that isn’t associated with an obvious source region on the Sun — show promising agreement between models and data.
The expanded capabilities of GR-Athena++ enable the stable, numerical solution of the key equations of Einstein’s general theory of relativity, which allows for detailed studies of merging black hole binaries.
Winds from a super star cluster may be responsible for the faint and broad emission-line wings seen in the H II region Markarian 71 — and this type of emission feature may be characteristic of radiatively driven winds in general.
Chandra X-ray observations of the most distant blazar ever observed reveal extremely fast spectral variability — the first time this phenomenon has been seen in the X-ray emission of a flat-spectrum radio quasar.
The first of a series of works scouring the 34 billion measurements in an optical and infrared source catalog generated 527,055 “tracklets” from solar system objects, including main belt asteroids, Jupiter trojans, and Kuiper belt objects.
Simulations suggest that our solar system contains one ten trillionth of an Earth mass of newly captured interstellar material at any given time, while ten thousand times that amount remains from the Sun’s earliest days.