... Visible in the above image are many small planetary nebulas pushed out by low massstars, large emission nebula of ambient interstellar gas set aglow by massivestars, and huge gaseous supernova remnants cast off by massivestars exploding . ...
... A study of star forming region W5 by the sun-orbiting Spitzer Space Telescope provides clear clues by recording that massivestars near the center of empty cavities are older than stars near the edges. ...
... A study of star forming region W5 by the sun-orbiting Spitzer Space Telescope provides clear clues by recording that massivestars near the center of empty cavities are older than stars near the edges. ...
... were formed at the same time and at first were all located along the main sequence by mass, lower massstars at the lower right ... Over time, higher massstars have evolved off the main sequence into red, then blue giants and beyond . ...
... stars co-orbiting with extremely dense neutron stars -- stars with the mass of the Sun but the diameter of Manhattan Island ... The system consists of a low massstar and a a neutron star that spins once every 2.35 milliseconds . ...