When a star exhausts its hydrogen and helium in the outer layers, it can become a red giant and eventually shed those outer layers, leading to the formation of a planetary nebula. The core that remains can become a white dwarf, which is a dense, hot remnant that will gradually cool over time. This process marks the later stages of stellar evolution for medium-sized stars.
planetary
A planetary nebula forms after a main sequence star casts off its outer layers. The ejected gas and dust create a beautiful glowing shell of ionized gas that surrounds the remaining hot core of the star, known as a white dwarf.
Solar eclipce
When the Earth casts a shadow on the Moon, the shape of the shadow is typically circular. This occurs during a lunar eclipse when the Earth is positioned directly between the Sun and the Moon, blocking sunlight from reaching the Moon. The circular shadow results from the Earth's spherical shape, which consistently casts a round shadow regardless of its orientation.
When the Earth passes between the Sun and the Moon, it casts a shadow on the Moon, creating a lunar eclipse. When the Moon passes between the Sun and the Earth, it casts a shadow on the Earth, creating a solar eclipse.
planetary
A Planetary Nebula. See related question.
mystery men
A planetary nebula forms after a main sequence star casts off its outer layers. The ejected gas and dust create a beautiful glowing shell of ionized gas that surrounds the remaining hot core of the star, known as a white dwarf.
chib is very higher casts
Hyaline casts, or urinary casts, are cylinders of protein that have been dislodged and passed through the urinary tract. They are telling signs of kidney disease.
Orthopedic technologists put casts and splints on people.
Earth casts the shadow.
Abnormal casts in urine are cylindrical structures formed in the renal tubules, typically composed of proteins, cells, or other substances. Their presence can indicate various kidney conditions, such as glomerulonephritis, acute tubular necrosis, or urinary tract obstructions. Common types of abnormal casts include red blood cell casts, white blood cell casts, and granular casts, each suggesting different underlying pathologies. The identification of these casts during urinalysis can aid in diagnosing renal diseases and monitoring kidney health.
It casts a reflection.
Mages.
casts