Blue stars are the hottest stars in the universe. While people often associate red with hot and blue with cold, as objects warm beyond the point of red hot, their color changes, eventually becoming blue. Blue stars are astronomically immense and compact, this causes them to burn their fuel expeditiously which in turn makes their temperature very sultry. These stars often run out of fuel in only 10,000 – 100,000 years.
A blue giant is profoundly effulgent. Like a lighthouse, they shine across a great distance. Even though blue giant stars are infrequent, they make up many of the stars we visually perceive at night because they shine so brightly.
Blue giant stars die in a spectacular way. They grow more astronomically immense just like the sun-sized stars, but then in lieu of shrinking and composing a planetary nebula, they explode in what is called a supernova. Supernova explosions can be more effulgent than an entire galaxy, and can be visually perceived from very far away. Because blue giant stars only live a short time, scientists utilize them to find places in outer space where incipient stars are composing. Other examples of blue things include blue crabs and the sky.
Blue crabs have blue pinchers, and humans value them highly for their succulent, sweet meat. They grow along the eastern coast of North and South America from Nova Scotia to Uruguay. Their shells are brown, and the female blue crab has red accents on its claws. Blue crabs eat practically anything that gets in the reach of their large pinchers, including fish, mussels, snails, carrion and smaller blue crabs. The shells of male blue crabs grow to 9 inches in width.
Humans perceive the sky as blue due to the scattering of sunlight. Light travels in waves, and the molecules of air in the atmosphere act as tiny prisms to disperse the light. Blue light has the shortest wavelength in the spectrum, and the air disperses it more than any other color, giving the sky a blue appearance when the sun is overhead. However, when the angle of the sun is near the horizon, the change in the viewing angle means light must pass through more of the atmosphere. The blue light disperses quickly, allowing more of the yellow and red colors to reach the observer’s eyes, giving sunrises and sunsets a red appearance.
Blue stars are astronomically immense and compact, this causes them to burn their fuel expeditiously which in turn makes their temperature very sultry. These stars often run out of fuel in only 10,000 – 100,000 years.
A blue giant is profoundly effulgent. Like a lighthouse, they shine across a great distance. Even though blue giant stars are infrequent, they make up many of the stars we visually perceive at night because they shine so brightly.
Blue giant stars die in a spectacular way. They grow more astronomically immense just like the sun-sized stars, but then in lieu of shrinking and composing a planetary nebula, they explode in what is called a supernova. Supernova explosions can be more effulgent than an entire galaxy, and can be visually perceived from very far away. Because blue giant stars only live a short time, scientists utilize them to find places in outer space where incipient stars are composing.
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