NASA | SOHO and TRACE Solar Discoveries

The video discusses the Solar Heliospheric Observatory (SOHO), a joint mission by ESA and NASA launched in 1995 to study the sun. It highlights SOHO's ability to provide detailed images of the sun's corona using a coronagraph and helioseismology to observe the sun's internal dynamics. The video also introduces TRACE, which offers detailed views of coronal loops, revealing their complex structures and interactions with magnetic fields. Together, SOHO and TRACE enhance our understanding of solar phenomena and the universe.

What does SOHO stand for and which organizations launched it?

• Solar Heliospheric Observatory; ESA and JAXA

• Solar Heliospheric Observatory; NASA and Roscosmos

• Solar Heliospheric Observatory; ESA and NASA

• Solar Heliospheric Observatory; ESA and ISRO

Why is studying the sun important for understanding the universe?

• Because the sun is the largest star in the universe

• Because the sun is the only star that affects Earth

• Because the sun's behavior is unique and not found in other stars

• Because understanding the sun helps us understand other stars and the universe

What is the purpose of a coronagraph in solar studies?

• To measure the sun's temperature

• To create an artificial eclipse to study the corona

• To enhance the brightness of the sun's surface

• To capture images of solar flares

What technique allows scientists to see inside the sun?

• Astroseismology

• Geoseismology

• Helioseismology

• Chronoseismology

What is the convection zone in the sun?

• The sun's outermost layer

• The sun's core

• The sun's magnetic field

• The layer just below the visible surface where dynamics occur

What new details did TRACE reveal about coronal loops?

• They are all the same temperature

• They are static and unchanging

• They are tiny, thread-like, and vary in temperature

• They are larger than previously thought

How do SOHO and TRACE work together?

• They operate independently without sharing data

• They collaborate to enhance understanding of solar dynamics

• They study different stars

• They focus on different planets