NASA engineers spent decades planning for and developing their Apollo missions, which involved many complex steps such as launching on a Saturn V rocket, sending astronauts into low Earth orbit, docking their command module with the lunar module, and returning home safely. On July 20, 1969, Armstrong and Aldrin successfully landed the Eagle in the […]
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Life cycles of plants describe their development from birth through growing, flowering and seed production to maturity and death. All plants start as seeds. After being planted and germinating, each seed produces two leaves known as cotyledons before breaking open to grow roots and shoots. Seed Seeds are the fruit of plants, each one containing
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Finding out which planet is closest to Earth requires using various calculations. Venus often holds this title; however, that could change depending on when she aligns with the Sun. A new calculation, using the point-circle method, takes time into account and puts Mercury at the top of the list. Mercury Mercury, as the smallest planet
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The sky appears blue due to sunlight being scattered by gases and particles in the atmosphere, with blue wavelengths being scattered more readily than any other. At midday, when the sun is directly overhead, its light appears white. But during sunrise and sunset when more of its rays must travel through atmosphere layers to reach
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Sunlight penetrates our atmosphere and is absorbed and scattered in various ways; blue light is typically absorbed less, and red light more. This explains why the sky appears blue and sunsets and sunrises appear redder due to more light passing through more atmosphere and reaching your eyes. Rayleigh Scattering As sunlight travels through our planet’s
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NASA is commemorating their 50th anniversary with a logo honoring those responsible for six crewed moon landing missions with this logo, featuring a gold symbol representing flight overlaid by Earth and Moon images. Michael Collins designed the initial mission patch, featuring an American bald eagle clutching an olive branch in its beak with Earth as
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Landing on the moon occurs when a spacecraft touches down or enters orbit around its surface, such as Luna 2 did in 1966. Armstrong and Aldrin used Eagle to deploy instruments that collected rock and soil samples, took pictures and verified their equipment was working as intended. The astronauts also conducted engine tests for Eagle,
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Old Egyptian myths depict gods and goddesses with various roles; Sobek is associated with crocodiles and represents strength and power. Ma’at is an important character in these tales, embodying ideas of balance and universal order. Anubis is often associated with chaos and violence while Horus represents royalty and rebirth. Osiris Osiris, meaning “mighty” or “strong,”
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The Nile is a major north-flowing river in northeastern Africa that eventually flows into the Mediterranean Sea. Originating in Ethiopia, its initial course takes it through Sudan and Egypt before entering Europe. At its source, tropical rainforest teems with biodiverse tropical trees such as banana and coffee shrubs. However, as the river progresses northward, its
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