Mars is the fourth planet from the sun and the seventh largest at 227,940,000 kilometers, according to the University of Central Florida. The size and close proximity of Mars render it visible in the night sky, especially at certain points during its orbit.Know More
NakedEyePlanets.com notes that in its earliest stages of appearance, Mars has a faint, pale orange look and shines similarly to nearby stars. From this point, Mars continues to gain altitude until it disappears from the sky altogether at twilight. The overall appearance of the Red Planet is relatively diminutive. By late August, Mars travels west of the sun and becomes visible and more prominent in the night sky rather than the day.
The University of Central Florida explains that Mars travels around the sun in an oval-shaped pattern, causing it to appear more visible in the night sky. Earth is the third planet from the sun, and Mars is the fourth, making it one of the easiest to identify in the sky. NakedEyePlanets.com explains that at certain times during the calendar year, Mars is not visible at all. Mars first becomes visible in July, around dawn, as it becomes the tip of the Beta Tauri constellation's horn.Learn more about Planets
Mars is considerably less than 1 light-year away from Earth. According to Cornell University, Mars orbits the Sun at an average distance of 1.5 times the Earth's mean orbital distance. At the two planets' closest approach, the distance between them shrinks to 0.5 astral units, which equals 75 million kilometers.Full Answer >
The gravitational pull on Mars is 38 percent that of the gravity of Earth, explains researchers at the California Institute of Technology. The lower gravitational force is due to the smaller mass of the planet.Full Answer >
Low pressures, a lack of oxygen and cold weather on Mars would force humans to remain confined to spacecrafts and vehicles, according to physics.org. Astronauts could occasionally walk around in the open, but only if they wore spacesuits. Settlers would risk dying if their spacesuits became seriously damage. Underground shelter would be an ideal scenario. As of 2014, no settlement on Mars has been established.Full Answer >
According to NASA, 7 billion years ago, Mars may have been an excellent place for microbes to live, but currently it cannot support life because the air is too thin and is comprised mainly of carbon dioxide. After drilling into the rocks on Mars, scientists discovered the key ingredients of life, including sulfur, nitrogen, hydrogen, oxygen and carbon.Full Answer >