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[1011È£] 2025.02.03

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ScienceLEVEL 2¹«·á

Solar Probe Gets Closest to Sun

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https://upfile.neungyule.com/upload_admin/2025/02/1011_p06.jpgAn unmanned spacecraft recently made an incredible journey to study the sun. It flew by the fiery star and got closer to the sun than any other human-made object.

Built by NASA, the Parker Solar Probe was launched in 2018 with the intent of gathering information about the sun. The 685-kilogram spacecraft is protected by a carbon foam shield that can withstand temperatures of up to 1,430 degrees Celsius.

After being launched, the Parker Solar Probe has been making long, elliptical orbits that allow it to gain momentum and speed as it flies closer to the sun. In total, it is expected to make 24 flybys* of our star by June 2025.

The probe¡¯s 22nd flyby took place on December 24th. The unmanned vehicle came within 6.1 million kilometers of the sun¡¯s surface, which is the closest approach to a star by a human-made object.

In addition, the probe traveled at a blazing speed of 692,000 kilometers per hour. By comparison, it would take only 1.6 minutes to travel from Seoul to New York City at this speed.

One of the Parker Solar Probe¡¯s primary missions is to study the sun¡¯s outer atmosphere, called the corona.* In particular, NASA scientists have wondered why the corona gets as hot as 1 million degrees Celsius, while the sun¡¯s actual surface is only around 5,500 degrees Celsius.

The spacecraft is also returning valuable information about how solar winds and plasma* ejections are formed.

¡°The probe will truly be returning data from uncharted territory,¡± one NASA scientist said.

After completing its next elliptical orbit, the Parker Solar Probe is expected to make its final two flybys of the sun in March and June.

* flyby Á¢±Ù Åë°ú (¿ìÁÖ¼±ÀÌ Ç༺ÀÇ ÁÖº¯À» Åë°úÇÏ´Â ÀÏ)

* corona Äڷγª (žçÀÇ ¹Ù±ùÃþ¿¡ ÀÖ´Â ¾ãÀº °¡½ºÃþ)

* plasma Çö󽺸¶ (ÃÊ°í¿Â¿¡¼­ À½ÀüÇϸ¦ °¡Áø ±âüÀÇ »óÅÂ)
Discussion Questions
How do you think the probe¡¯s data can be useful?
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