NASA | IRIS: A Slice of Light

The video tutorial discusses NASA's Iris, a spectrograph that provides detailed images of the sun's chromosphere. It explains how Iris captures spectra by splitting light into discrete wavelengths, allowing scientists to measure temperature, velocity, and density of solar material. This data helps in understanding solar eruptions.

What is the primary function of NASA's IRIS as mentioned in the video?

• To capture images of the Earth's atmosphere

• To provide detailed images of the Sun's chromosphere

• To study the surface of Mars

• To monitor the weather patterns on Earth

What does a spectrograph do to the light from the Sun?

• It blocks the light

• It changes the color of the light

• It splits the light into its discrete wavelengths

• It magnifies the light

How is Spectra represented in the composite image?

• In a circular pattern

• Vertically

• Diagonally

• Horizontally

What measurements can scientists obtain from the Spectra?

• Distance, speed, and direction

• Color, brightness, and size

• Temperature, velocity, and density

• Mass, volume, and pressure

What is the ultimate goal of using IRIS to study the Sun?

• To predict weather changes on Earth

• To understand the causes of solar eruptions

• To find new planets

• To measure the Sun's distance from Earth