A 12-year study of massive stars in the Milky Way has confirmed the galaxy has four spiral arms.
A 12-year study of massive stars in the Milky Way has confirmed the galaxy has four spiral arms.
The uncertainty of science: The study confirms older data but contradicts newer data from the Spitzer Space Telescope that said the galaxy only has two arms.
A 12-year study of massive stars in the Milky Way has confirmed the galaxy has four spiral arms.
The uncertainty of science: The study confirms older data but contradicts newer data from the Spitzer Space Telescope that said the galaxy only has two arms.