In recent years, one of the most troubling puzzles in astrophysics has grown more urgent. Scientists have realized that the ...

ALMA has revealed evidence of a new type of slim, filamentary structure that drives cycles of depletion and replenishment. At the heart of our galaxy, in the turbulent region surrounding the ...

Nicknamed the “Big Wheel,” a giant, spiral-shaped disk galaxy was spotted in an unusually crowded part of the early universe ...