7 minutes after the start of the game … Exploration of the basement of Mars

NASA's InSight Mars satellite successfully landed on Mars at 4:53 pm (U.S. time). When news of the success of the landing was heard, citizens who watched this scene on the New York Times Square Plaza bulletin board, as well as the control center of the California Jet Propulsion Laboratory, immediately shouted. NASA General Manager Jim Braidenstein said: "Today, Mars has landed on Mars for the eighth time in its history." The information provided by Insight will provide valuable information for future astronauts on Mars and Mars. "

In 1976, the United States attempted to land on Mars during the 11th mission, starting with the American Viking spacecraft. Among them, three from the former Soviet Union suffered three failures, including the masquerade. The successful landing of the Insight should stimulate the exploration and development of remote areas led by the US government. In the United States, the Trump government has entrusted terrestrial orbit to the private sector. The government has revised its space development strategy by focusing on deep space exploration like the Moon and Mars.

◇& # 39; Seven minutes of fear & # 39; went well

On May 5, Insight left the Earth to travel 450 million kilometers into Earth orbit. Insight entered the atmosphere at an astonishing speed of 12800 km / h, from 128 km above Mars that day.

Landing on Mars is the most difficult process after entering the atmosphere. Since the atmosphere only represents 1% of the Earth, the friction of the air can not reduce the rate of descent of the LG. The three landing failures could not slow down and it is estimated that they collided with the ground surface. Space scientists call the landing until after the atmospheric entry 'Seven minutes of fear'. Insight was able to make a soft landing by reducing the speed to 65 m per second at the end of the day, when the heat sink, parachute and rocket were used sequentially for 6 minutes and 30 seconds after entering the aircraft. # 39; s atmosphere.

The Insight landing news was sent by a miniaturized satellite "Marcoco". In the past, the gap between Mars and Earth was extended by three hours. On the other hand, the Marco satellite is very small and handy, and the communication time has been reduced to 8 minutes and 7 seconds due to the development of communication technologies. It is almost the same as the time at which radio waves reach the Earth.

The place where Insight landed is the plain of the Elysee, near the equator of Mars. NASA researchers called it "a parking lot of over 100 kilometers" in that there was no obstacle. Immediately after the landing, Insight photographed the surface with the camera at the bottom of the fuselage and discovered that it was a flat area that was not cleared because the camera's semi-transparent protective hood but which contained few rocks.

◇Study of the nuclear and crustal structure of Mars

In the past, when Mars scoured the surface of Mars to find traces of living things such as water, Insight studies the inner and nuclear perception of Mars. It is planned to seize the earthquake of magnitude 5 or more by seismic system for two years until November 24, 2020 and install a heat sensor that goes down to 5 m deep. Scientists still do not know if the core of Mars is liquid or solid, like the Earth. Knowledge of earthquake and thermocycling information can determine the state of the inner material. This is the key information to avoid risk factors such as earthquakes during the development of Mars. Insight also sends its precision position to Earth in the form of radar. This is information that confirms whether or not Mars's planet rocks. If you look at Mars' swing with Insight's location information, you can see that the interior of Mars is also liquid.

NASA confirmed that the solar panels had been deployed 5 hours and 30 minutes after the Insight landed. This is the beginning of a large-scale mission. Insight deploys a robot arm 1.8 meters long in a few days and installs seismometers and heat sensors in two to three months. NASA scientists are waiting for "the future of the Earth to be visible through the current state of Mars". It is presumed that Mars has become as desolate as today.