Astronomy Facts

birth of a star

How is a star born?

Birth of a star The universe is a wondrous place where many processes, that defy all imagination,occur. One of these magical phenomena is the birth of a star. Born out of nebilas, a star is the end result of h...
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Is outer space a perfect vacuum?

Outer space (also called just space) is all the space in the universe beyond Earth and its atmosphere. It can be simple stated that in outer space there is no air (atmosphere) and it is a vacuum (empty ...
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Why is the sky blue in the day and black at night?

During the day (daylight) the sky has a blue appearance because the Sun’s light (white light) is made up of rainbow of colors (red, orange, yellow, green, blue, indigo and violet) of different wavelength....