The white dwarf orbiting Sirius began its life as a blue star with 5 times the Sun’s mass, say astronomers in Arizona and New Mexico. If this blue star still shone today, Sirius would be so ...

After the sun has set, a new suite of shining beacons ... “You get a yellow Sirius, deep red Sirius, blue Sirius—and it all happens in a fraction of a second. It’s a kaleidoscope of colors.” ...

Only the sun, the moon ... frosty nights and snow-laden fir trees." In color, Sirius is a brilliant white with a definite tinge of blue. Its name appears to be derived directly from the Greek ...

Another thing that makes Sirius stand out is its color: brilliant white but also shining with a definite tinge of blue. For those of ... when the sun is 12 degrees below the horizon and the ...

The brightest star in our sky has a companion that's smallerthan Earth yet 98 percent as massive as the Sun, a new study reveals. Astronomers already knew the brilliant blue-white Sirius hada ...

How to see a scintillating Sirius Any star that has three or more times as much mass as the sun will tend to look blue to our eyes. That's irrespective of other factors such as chemical ...

That sun/Sirius pairing, they believed, always delivered the hottest days each mid- to late summer. The ancients were on to something. Typically, the highest temps of the year happen after the sky ...