Gravity on mars1/5/2024 Earth’s atmosphere, what we call air air, has 78% nitrogen and 20% oxygen. The mixture of gases that surround a planet or a moon is called its atmosphere atmosphere. This is labelled Conjunction: Mars is distant and faint. Because Mars' orbit is oval shaped, Mars is much further from the Sun than the Earth. In the right illustration, Earth is to the right of the Sun, and Mars is to the left of the sun. This is labelled Opposition: Mars is close and bright. In the left illustration, Earth and Mars are close together on the right side of the Sun. Earth is shown as a blue sphere and Mars is shown as a red sphere. Outside this circle, Mars' orbit is drawn as a larger oval. Earth's orbit around the sun is drawn as perfect circle. Red lines show Mars' orbit, and blue lines show Earth's orbit. Shown are two colour illustrations of the Sun, Earth and Mars at two different stages of orbit.īoth illustrations have a black background with the sun represented as a yellow sphere at the centre. Because of the size and speed of its orbit, a year on Mars lasts 669 sols. Mars also moves through the solar system more slowly than Earth. Since Mars is further from the Sun, its orbit goes all the way around Earth’s orbit. Having a leap year ensures the calendar stays in sync with the seasons. This is why once every four years we add an extra day at the end of February. One year on Earth actually lasts 365 ¼ days. The time it takes for Earth to complete one revolution around the Sun is called a year. This would be like having that spinning top draw an oval path around a point on the floor. Planets also travel in an orbit around the Sun. Mars spins a bit slower around its axis than Earth, so each day on Mars is a little longer. One day on Earth actually lasts 23 hours and 56 minutes, not 24 hours. The time it takes for Earth to complete one full rotation is what we call a day. Days and YearsĮarth rotates around its axis like a spinning top. The wheels are dark grey with sharp treads. Each arm has a joint that looks a bit like a human elbow. Three extend from the right side of its body, and three extend from the left, on long mechanical arms. The body of the rover is pale grey brown, and covered with cables, doors, switches and other objects. There is a camera on a pole on top of the rover, and the lens faces forward. The sky behind is blueish grey with red and gold tones. The rover is perched at the top of a hill with reddish brown soil and sharp grey rocks. Shown is a colour photograph of the Curiosity Rover. It is the tallest known mountain in our whole solar system. It is three times taller than Mount Everest. The tallest Martian mountain is called Olympus Mons. Mars has mountains and canyons like Earth, but they can be much bigger. This is because of the red iron oxides or rust on its surface. They both have similar kinds of iron-rich rocks on their surfaces. Two Rocky PlanetsĮarth and Mars are both rocky planets. Check out the “ What is your weight on another planet?” activity to try it for yourself. You can calculate your weight on another planet. This is because the force of gravity is lower on Mars. Though the person would contain the same amount of matter, their weight would only be 38% of their weight on Earth. This is because weight weight is the measurement of the force of gravity on an object. If a person were standing on the surface of Mars, their mass would be exactly the same as on Earth, but they wouldn’t weigh the same. Mars is smaller on the right, mostly reddish gold, with some areas of brown and grey, and clumps of white cloud. A colour illustration of Earth and Mars in space. The photo of Mars was taken by the Hubble Space Telescope in 2001.The image of Earth was made from many different satellite images and observations in 2002.Įarth is on the left, blue and swirling with white clouds.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |