Moon has five phases. New moon-which we can not see it is invincible to human eyes, so when moon does not show at night, know it that it is in the new moon phase. Crescent-this is the first phase after the new moon that is visible, is not fully curved and is small and tiny. Half moon- After the crescent phase, half moon emerges, this is the half division of the full moon. GIBBOUS -the gibbous is a bit bigger than the half moon, it is a pregnant half moon. Full moon- this is the full shape of the moon, and after full moon it goes back to new moon that we can not see. N/B -MOON IS Luminous object, it can not produce light on its own, it reflects light from the sun. Moon calendar
There are two theories as to how planets in the solar system were created. The first and most widely accepted, core accretion, works well with the formation of the terrestrial planets like Earth but has problems with giant planets. The second, the disk instability method, may account for the creation of giant planets. Scientists are continuing to study planets in and out of the solar system in an effort to better understand which of these methods is most accurate. The core accretion model Approximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula. With the rise of the sun, the remaining material began to clump up. Small particles drew together, bound by the force of gravity, into larger particles. The solar wind swept away lighter elements, such as hydrogen and helium, from the closer regions, leaving only heavy, rocky mater...
Things YOU KNEW not about SCIENCE. The hottest planet isn’t closest to the sun. Many people know that Mercury is the closest planet to the sun, well less than half of the Earth’s distance. It is no mystery, therefore, why people would assume that Mercury is the hottest planet. We know that Venus, the second planet away from the sun, is on the average 30 million miles farther from the sun than Mercury. The natural assumption is that being farther away, it must be cooler. But assumptions can be dangerous. For practical consideration, Mercury has no atmosphere, no warming blanket to help it maintain the sun’s heat. Venus, on the other hand, is shrouded by an unexpectedly thick atmosphere, about 100 times thicker than our own on Earth. This in itself would normally serve to prevent some of the sun’s energy from escaping back into space and thus raise the overall temperature of the planet. But in addition to the atmosphere’s thickness, it is composed almost entirely of car...
Comments