Imagine the Universe!
Imagine Home  |   Ask an Astrophysicist  |  
Ask an Astrophysicist
Library of Past Questions

Supernovae and Their Remnants

First time visitors: Please be sure to read our main page!

  • Check out the resource links. These are the sites we often point to in answering your questions.
  • Browse through the library of questions below.
  • Also try our Ask an Astrophysicist Search Engine!.
  • If your question is still not answered, follow the link at the bottom of this page

Library of Past Questions and Answers

    Supernovae

  1. Did I see a supernova?

  2. What is a supernova and how does it affect us?

  3. What is the difference between a nova and a supernova?

  4. Who discovered what a supernova is?

  5. What are the different types of supernovae?

  6. How long does a supernova last?

  7. Where does the energy for a supernova originate?

  8. How are supernovae detected and how can I find out when the last one occurred?

  9. When was the last supernova that could be seen without a telescope?

  10. Why aren't there as many supernovae in our galaxy as predicted?

    Supernovae and the Elements

  1. Are statements like "Most of the atoms of carbon, oxygen and nitrogen in our bodies came from supernovae." justified?

  2. How could an element heavier than iron be created?

  3. What is known about isotopic abundances in supernova remnants from X-rays and gamma-rays?

  4. Are there fewer heavy elements seen in older galaxies?

    Supernova Remnants

  1. How much do supernovae expand when they explode?

  2. What caused the ring around SN1987a?

  3. Does a newly found supernova remnant suggest a close supernova never seen?

  4. Can you refute claims that the Universe is only 10,000 years old?

    Supernovae and the Earth

  1. Is there any evidence of past extinctions from supernovae?

  2. Could the Earth be destroyed by a nearby supernova?

  3. Can we identify the SNR that helped make the Solar System?


Mailbox Do you have a question that isn't answered in our archive?
We do not answer
  • homework questions.
  • term paper or research paper questions.
  • questions asking for science fair project ideas.
  • questions that can be answered by doing a web search (see How to Search the Web)
  • questions unrelated to space-based astrophysics.

  • Special Guidelines for Teachers
  • Ask your question about Supernovae and Their Remnants here, if it isn't excluded by the above rules.
    (Sorry, we do not reply via regular mail.)

  • If words seem to be missing from the articles, please read this.

    Imagine the Universe! is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

    The Imagine Team
    Project Leader: Dr. Barbara Mattson
    Curator: Meredith Gibb
    Responsible NASA Official: Phil Newman
    All material on this site has been created and updated between 1997-2014.
    This page last updated: Monday, 19-Nov-2007 19:40:09 EST