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Home / taiwan / NASA Insights is going to land on Mars early in the morning, scientists staring at the key 7 minutes | TechNews Technology News

NASA Insights is going to land on Mars early in the morning, scientists staring at the key 7 minutes | TechNews Technology News



NASA's InSight Mars Lander is completing a seven-month space trip, preparing for land on Martins Plain, scheduled to land at 3 o'clock on monday, monday (thursday 4 o'clock) point). Because the signal is sent back to earth, the insights will be delayed, whether it is safe to reach the ground or the crash, scientists will not know until 7 minutes after the facts.

By 2018, researchers have made many new advances in the exploration of Mars. In June, NASA Curiosity finally discovered organic molecules that supported living conditions on Mars, although organic matter can also be produced from non-biochemical reactions. At the time of the month, ESA Express discovered a huge lagoon under the Islamic sheet in Martian Antarctica, and this evidence is stronger than any previous study.

In November, ESA and NASA send two exploration cars, ExoMars 2020 March and March 2020, to Mars. Landing sites will be released. The former may be Oksia plateau, and the latter is determined to be the Jezero Crater. .

NASA Insights (full name: Mars Interior Exploration with Seismic Investigations, Geodesy and Heat Transport, Abbreviation InSight), launched in May this year, is about to begin a historic moment. It will be 3:00 AM EST on Monday (Taiwan). At 4 o'clock on Tuesday it landed on Elysium Planitia near the equator on Mars. It is one of the youngest volcanoes in Mars, with a mild terrain, about -2 km above sea level and about 3000 km from east to west.

▲ Imaginary map of Martian Eleusion. (Source: NASA)

The hardest moment for NASA engineers is the short 6 minutes after Insight entered the martyric atmosphere. During this period, the detector will travel through the atmosphere at a speed of 19,800 kilometers per hour and complete the mission in three stages: entry, landing and landing (EDL).

During the input phase, the detector must be cut at an exact 12 degree angle. If the angle is too steep, the detector will burn. It will be too flat and will be run back into the outer space of the Martian atmosphere. During the descent phase, the detector will appear. The heat shield blocks the friction heat of the atmosphere. The team estimates that the temperature of the detector's front end will be heated to 1000 ° C and the atmospheric resistance will gradually reduce the detector speed to about 1,350 km / h.

In the final landing step, when the detector is as low as about 16 km from the ground, the heat shield opens and the parachute buffer turns on. When the ground is 2 km away, the parachute drops again and 12 rocket launchers at the bottom of the landing. Start the ignition to compensate for landing speed, and finally end as close to Mars as the calculated researcher.

(Source: NASA)

But since the distance between Mars and Earth is there, signal transmission is delayed, and researchers can not immediately know if the insight is a successful landing or loss of control. Everything has to wait for the insight to return to the signal.

Insight is a stationary scientific vehicle. Once landed, it will begin to deploy solar panels and scientific instruments in situ, including seismic internal control (SEIS) experiments, heat flow and physical property detectors (Heat Flow and Physical Properties Probe (HP3), Rotation and Interior Structure Experiment (RISE) for to study Mars's early geological development.

If you want to wait for this key 7 minutes with researchers from all over the world, NASA has drafted a live broadcast for you.

(Source: NASA)

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