One large Milky Way galaxy or many galaxies?
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...
Irish Independent on MSN19h
Irish scientists reveal different ways stars explode, giving clues to ‘dark energy’ of an expanding Universe
Ancient ‘white dwarf’ stars explode and die in more ways than was thought, and observing these violent cosmic deaths could ...
Scientific American16h
JWST Spies a Giant Space Hamburger—and Maybe Planetary Origins, Too
It’s neither fast nor food, but a spectacular object called HH 30 looks appetizing for astronomers in a new image from the ...