The Parker probe, launched in 2018, has flew by Venus for the fourth and fifth times in February and October this year in preparation for reaching the target location closest to the sun in 2025. One of the special features of the Parker probe is that most aircraft use the opportunity to fly by celestial bodies to accelerate to save fuel while the Parker probe has flew by Venus seven times and slowed down during its seven-year journey, and gradually adjusted Its orbit brings it closer and closer to the sun. In such a high-speed flight, hitting any small particle floating in the air is very dangerous for the detector. The speed of the Parker probe has reached 364,600 miles per hour, which is equivalent to 101 miles per second. In addition to the challenge of high temperatures, the increasingly faster flight speed of the probe is another challenge. NASA designed a 4.5-inch thick heat shield for the probe to protect the cameras and other instruments inside the probe from being melted by the high temperature of more than 2,500 degrees Fahrenheit. Such close contact with the sun is a test for the heat shields of NASA’s probes. In contrast, the radius of the sun is only about 430,000 miles, which shows that the thickness of the sun’s atmosphere is very large.
This time, the Parker probe was only 5.3 million miles from the sun when it was closest, which is about 5% of the distance between the earth and the sun. The tenth time it flew by the sun was also the first time it entered the sun’s atmosphere. But, with the Parker Solar Probe having made this first step, we’re closer than ever to uncovering those secrets.( Epoch Times reporter Di Rui compiled a report) The Parker Solar Probe sent by NASA (NASA) moves closer to the sun every time it flies over the sun. Of course, there’s still a long way to go before we truly understand the workings of our star. Furthermore, it will also give us deeper glances at the surface of the sun beyond the corona. Raouafi says that the Parker Solar Probe will now be able to give us insight into those physics. Raouafi, the Parker Solar Probe Project Scientist at JHU/APL. “We have been observing the sun and its corona for decades, and we know there is interesting physics going on there to heat and accelerate the solar wind plasma.” said Nour E. As such, understanding more about it could help us understand more about those powerful winds.įurthermore, there are tons of other physics that we don’t fully understand going on inside the corona. For one, scientists believe the corona plays a large part in push solar winds. While it might be the outer atmosphere, there’s actually a lot to learn from the Sun’s corona. What we can learn from the Sun’s corona Image source: NASA Goddard / SDO Of course, learning more about it could also help us learn more about other stars out there, too. Since the Sun is the closest start to us, and the one that we rely on for heat and light, it’s important to understand it. The ongoing mission to touch the Sun is way to learn more about the way that our star behaves. This allowed it to measure phenomena that had only been estimated in the past.
According to the papers, the Parker Solar Probe spent those five hours taking direct observations of what lies within the corona.
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