Upcoming Nova Events and Observations
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Questions and Answers

What type of celestial event does NASA predict will occur between now and September?

  • Nova Outburst (correct)
  • Meteor Shower
  • Solar Flare
  • Supernova

    • Why is the upcoming nova outburst considered a rare celestial event?

  • Nova outbursts are usually only visible from specific locations on Earth.
  • Nova outbursts are incredibly rare and happen only once every few centuries. (correct)
  • Nova outbursts are difficult to predict and often occur unexpectedly.
  • Nova outbursts are typically obscured by dust and gas, making them difficult to observe.

    • From where can the nova outburst be observed?

  • Only through telescopes with specialized filters.
  • From anywhere on Earth, using any standard equipment.
  • Only from specific locations on Earth with clear skies.
  • From anywhere on Earth, without any special equipment. (correct)

    • What is the main difference between a nova outburst and a solar eclipse?

    <p>A solar eclipse is a temporary event, while a nova outburst can last for several days or even weeks. (D)</p> Signup and view all the answers

    What is the purpose of the artist's concept of a nova explosion included in the text?

    <p>To provide a visual representation of the phenomenon described in the article. (C)</p> Signup and view all the answers

    Based on Schaefer's prediction, which of the following is the MOST likely scenario for the nova explosion?

    <p>The nova outburst will occur within the next few months. (B)</p> Signup and view all the answers

    According to the information provided, how long is the nova outburst expected to be visible through binoculars?

    <p>Just over a week. (B)</p> Signup and view all the answers

    What is the difference between a nova outburst and an eclipse?

    <p>Eclipses are visible for a shorter duration. (C)</p> Signup and view all the answers

    Assuming the nova outburst occurs in the next few months, why would it NOT be visible through binoculars during the month of December 2024?

    <p>The nova outburst will have faded away by then. (D)</p> Signup and view all the answers

    Based on the information provided, which TWO statements are TRUE related to NASA's expectations of this nova explosion?

    <p>The exact date is unknown. (B), The outburst is expected sometime between now and September 2024. (D)</p> Signup and view all the answers

    Based on the provided information, what is the approximate timeframe for the next nova outburst of T CrB?

    <p>2066 (C)</p> Signup and view all the answers

    Which of the following statements accurately reflects the phenomenon behind T CrB's periodic nova outbursts?

    <p>The white dwarf in T CrB system accumulates matter from the red giant, leading to a runaway thermonuclear reaction that causes an explosion. (A)</p> Signup and view all the answers

    The statement "... you get higher and higher pressure until bang — it's a runaway reaction" describes which specific event in T CrB's nova outburst?

    <p>The sudden release of energy and matter from the white dwarf's surface due to the runaway thermonuclear reaction. (A)</p> Signup and view all the answers

    What is the primary reason T CrB's white dwarf survives each nova event?

    <p>The explosion only affects the outermost layers of the white dwarf, leaving the core intact. (A)</p> Signup and view all the answers

    Which of the following best describes the role of the red giant in the T CrB star system?

    <p>The red giant is the primary source of material that feeds the white dwarf's nova outbursts. (A)</p> Signup and view all the answers

    What is the significance of the Earth Day Network (EDN) having over 50,000 partners in more than 190 countries?

    <p>It demonstrates the widespread global concern regarding environmental issues and the need for collective action. (B)</p> Signup and view all the answers

    Which of the following is NOT an example of landmark environmental legislation resulting from the Earth Day movement?

    <p>The Montreal Protocol (D)</p> Signup and view all the answers

    What is the primary purpose of the cartoon drawing in the context of Earth Day 2024?

    <p>To symbolize the devastating impact of plastic pollution on the environment. (B)</p> Signup and view all the answers

    Based on the text, which of the following statements accurately describes the Earth Day movement's impact?

    <p>The Earth Day movement has significantly influenced environmental policy both domestically and internationally. (C)</p> Signup and view all the answers

    What is the most appropriate interpretation of the statement 'Earth Day, celebrated annually on April 22, is a reminder of the urgent need to protect our planet.'?

    <p>Earth Day serves as a constant reminder of the ongoing need to prioritize environmental conservation. (B)</p> Signup and view all the answers

    What kind of star is involved in a nova?

    <p>A white dwarf (B)</p> Signup and view all the answers

    What happens to the material shed by the red giant in a nova system?

    <p>It accumulates on the surface of the white dwarf (C)</p> Signup and view all the answers

    What causes the nova explosion?

    <p>The ignition of the accumulated material on the white dwarf's surface (A)</p> Signup and view all the answers

    Why is the upcoming T Coronae Borealis nova eruption visible to the naked eye?

    <p>It is significantly brighter than other nova eruptions (B)</p> Signup and view all the answers

    What is the primary distinction between a nova and a supernova?

    <p>A nova involves the fusion of material on the surface of a star, while a supernova involves the collapse of a star's core. (C)</p> Signup and view all the answers

    What percentage of plastic produced annually is used for single-use purposes?

    <p>50% (A)</p> Signup and view all the answers

    Which of the following is NOT one of the four points in EDN's plan to reduce plastic production?

    <p>Support fossil fuel industries (A)</p> Signup and view all the answers

    What is a major health risk associated with plastic pollution mentioned in the content?

    <p>Cancer (B)</p> Signup and view all the answers

    What is the target year for phasing out all single-use plastics according to EDN's plan?

    <p>2030 (A)</p> Signup and view all the answers

    Which of the following statements best captures the sentiment expressed by Kathleen Rogers regarding plastics?

    <p>Our dependence on plastics is a significant health gamble. (C)</p> Signup and view all the answers

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