Gravitational forces from both the sun and moon continuously pull on the Earth. It is the moon's gravity that is the force behind the Earth's tides. Every particle on Earth is pulled on by the gravity of the moon. Because liquids move more easily, the pull of gravity is much more noticeable in liquids than in solids. The moon's pull is strongest on the part of the Earth directly facing the moon.
The Moon then begins to wane through another gibbous phase until it reaches its next phase called last or third quarter moon, and again proceeds through another crescent phase, ultimately returning to the new moon almost 30 days later. The saying “Once in a blue moon” is a referral to when two full moons occur in the same calendar month. Begin with focus questions: 1. Have you ever noticed that the moon looks different from night to night? 2.
Because Titan has such a dense atmosphere scientists had a lot of trouble studying the surface of the large moon. This was until 2004 when the Cassini–Huygens mission was launched. The purpose of this mission was to observe and study Saturn and Titan by using fly-by’s. The fly-by’s that have
Is there a lot of economic benefit from going to the moon? NASA has discovered a lot of water on the moon. In 2009 NASA crashed a rocket into the moon. NASA says they have detected 100 kg of water. This led many people to suggest that water should be extracted from the moon since we are running out of fresh water here on earth.
Venus also has the slowest rotation out of all the planets rotating around the sun every 243 Earth days. 5 .Why do Mercury and Earth’s Moon lacks an atmosphere? Mercury and the moon are so small and light they do not have enough gravity to hold on to an atmosphere. Also they are closer to the Sun so the sun burns off their gasses a lot quicker than ours. 8.
The Skylab Space Station was launched May 14, 1973, from the NASA Kennedy Space Center by the colossal Saturn V launch vehicle (the moon rocket of the Apollo Space Program). Sixty-three seconds after liftoff of the Space Station, the shield designed to protect it from meteoroids also to shade Skylab's workshop—moved without any intent. The shield was torn from the space station because of atmospheric drag. This event led to a ten-day period where Skylab has many problems that had to be taken care of before the space station would be safe for future missions. The Skylab Space Station was launched into orbit on May 14, 1973 as part of the Apollo program.
Living on Another Planet: Mars Mars is the fourth planet from the sun, the closest neighbor to Earth, and as a planet, is the most similar to our planet out of all the other planets in our solar system. These facts lead to an obvious question. What would it be like to live on Mars? Is such a thing possible, or merely just science fiction? Scientists have worked for many years trying to develop answers to these questions, and even going as far as to launch two rovers on June 10th, 2003.
The lunar phases vary cyclically as the Moon orbits the Earth, according to the changing relative positions of the Earth, Moon and Sun. One half of the lunar surface is always illuminated by the Sun (except during lunar eclipses), and hence is bright, but the portion of the illuminated hemisphere that is visible to an observer can vary from 100% (full moon) to 0% (new moon). The boundary between the illuminated and unilluminated hemispheres is called the terminator. Lunar phases are the result of looking at the illuminated half of the Moon from different viewing geometries; they are not caused by shadows of the Earth on the Moon that occur during a lunar eclipse. The Moon exhibits different phases as the relative geometry of the Sun, Earth and Moon changes, appearing as a full moon when the Sun and Moon are on opposite sides of the Earth, and as a new moon (also named dark moon, as it is
(Strobel, 2007) For example on Mars, through telescopes, scientist can see the mountains and valleys of the planet. They can see what the make up of the land is, and what color are present in the land, help them to determine the composition of the Martian soil. Chemical Composition of Planet Interiors Determining the chemical makeup of planets other than earth is a real challenge to scientist even today. While science has evolved by leaps and bounds in the 20th and 21st centuries, these planets are so far away from us that it is difficult and expensive to study. For many years, what we knew about the other planets was learned from examining them through telescopes.
The length of Halley’s comets orbit is approximately 76 years, though it has varied from 74-79 years since 240BC. The perihelion, the point in which the comet’s orbit is nearest the sun is just 0.6AU and when furthest from the sun 35AU (roughly the distance of Pluto). Unusual for an object in the solar system, Halley’s comet ‘s orbit is retrograde, orbiting the sun in the opposite direction to the planets. Halley’s is expected to next appear on 28th July 2061. It is expected to be in a better position for observation than in 1986 as the earth and the comet will be on the same side of the earth and is expected to have a magnitude of -0.3 compared with only +2.1 in 1986.