Galaxies, vast conglomerations of stars, gas, dust, and dark matter, are the building blocks of the universe. From majestic spirals to enigmatic ellipticals, galaxies come in a variety of shapes …
During the time of Newton and the discovery of experimentation, the universe was eternal and ageless. Time was an independent variable whose course could not be altered. Scientists could understand …
Statistically speaking, it turns out that 20% of the stars form double or multiple systems and that a roughly identical percentage probably have a procession of planets which, in all …
Sometimes white, sometimes red, crescent-shaped, oval or perfectly round, the Moon has been the faithful companion of the Earth for billions of years. Born at the same time as the …
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is the visible spectrum that is visible to the human …