Helix Nebula

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/helix-nebula

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 the scientific name?NGC 7293
2. What is the location?Constellation Aquarius
3. How does the Helix Nebula form?When a star runs out of hydrogen, it expands into a red giant and blows off its outer layers. The hot core becomes a white dwarf that lights up the gas.
4. Why do we see cometary knots in the Helix Nebula?These are dense, elongated clumps of gas that look like tiny comets. They are thought to be shock fronts or places where gas is thicker.

Stellar Evolution: The life cycle of stars, from birth to death, including changes in size, temperature, and composition.
Galactic Chemical Enrichment: The process by which heavier elements, created in stars, are dispersed into the interstellar medium, seeding new star formation.
White Dwarf: The dense, hot, Earth-sized stellar core remaining after a star like the Sun has exhausted its nuclear fuel.
Nucleosynthesis: The process by which new atomic nuclei are created within stars and during stellar explosions.