The two brightest nighttime stars available in the Minnesota and Wisconsin sky are Sirius and Arcturus. April is the only ...

Sirius, in the constellation Canis Major, is the brightest star in the sky. It’s twice as massive as the Sun. Canopus, the ...

When the dwarf reaches 1.4 times the mass of the Sun, the star spontaneously detonates in a fantastically bright thermonuclear blast. Nothing remains of the dwarf except debris. The Sirius system ...

At 8.6 light-years away, Sirius B is the nearest known white dwarf star to Earth. Photograph courtesy NASA/ESA/H. Bond (STScl)/M. Barstow (University of Leicester) Red giants are hot enough to ...

The two brightest nighttime stars visible in the Pottsville sky are Sirius and Arcturus. April is the only month of the year ...