Yohkoh

High school (ages 12+)
Space & Astronomy

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/yohkoh

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is Yohkoh known for?Detailed observation of solar flares and coronal mass ejections in X-rays
2. What is the spacecraft type?Solar observatory spacecraft
3. What is the collaborating agencies?ISAS (Japan), NASA (USA), PPARC (UK)
4. What was Yohkoh and why was it called a Sunbeam?Yohkoh was a space telescope that watched the Sun. Its name means "Sunbeam" in Japanese, showing how bright it was.
5. When was Yohkoh launched and who helped build it?It launched on August 30, 1991. Japan’s ISAS built it with help from NASA in the U.S. and the UK’s PPARC.

Solar Flare: A sudden, intense burst of radiation and particles from the Sun's surface, driven by magnetic energy release.
Coronal Mass Ejection (CME): A large expulsion of plasma and magnetic field from the Sun's corona into interplanetary space.
Magnetic Reconnection: A fundamental plasma physics process where magnetic field lines break and reconfigure, releasing stored magnetic energy.
X-ray Astronomy: The branch of astronomy that studies celestial objects and phenomena by observing their X-ray emissions.