Astronomers trace the Small Magellanic Cloud’s unusual stellar motions to a past cosmic encounter.
It's a new window into the first star explosions.
Astronomers believe that there have been three generations of stars in the universe. The first, which are yet to be seen directly, were made of just hydrogen and helium. The Sun is among the last ones ...
Like tiny photobombers, cosmic anomalies resembling small, bright red points show up in almost every snapshot taken by the ...
An international team of astronomers has discovered one of the most primitive stars in terms of chemical composition — a ...
Astronomers have identified a star called PicII-503 inside the ultra-faint dwarf galaxy Pictor II, and its chemical ...
T he first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University ...