Solar Week - Ask a Question

During solar week you can post questions here for our scientists to answer.
   You do not need to register or sign in to post questions,
   just click on one of the forums below and click "Write a New Post".

   You may want to Meet the scientists who will be answering your questions.
   Check out our new blog and FAQs.

Search

Page 1 of 22 (219 items) 1 2 3 4 5 Next > ... Last »
  • Re: solar cells

     Hi Valarie, The key here is not how far away from Earth a spacecraft is, but how far away from the Sun a spacecraft will have to travel.  Since the intensity of sunlight falls of as the square of the distance away from the Sun, the further away a spacecraft will go from the Sun, the more difficult it is to use solar panels to provide ...
    Posted to Other (Forum) by Kris Sigsbee on 04-16-2010
  • Re: careers

    Hi Becky, I'm more of a magnetospheric physicist, so I don't know a lot about what new solar physics missions are currently in development.  However, I do know about some of the missions currently in development to study the Earth's magnetosphere.  Scientists and engineers working in the Department of Physics and Astronomy ...
  • Re: Solar storms

     Hello, In general, solar storms like coronal mass ejections and solar flares do not directly affect humans living on the surface of the Earth, since we are protected by the atmosphere from energetic solar particles.  Coronal mass ejections, solar flares, and the geomagnetic storms that they cause pose a much bigger risk to our ...
    Posted to Solar Storms (Forum) by Kris Sigsbee on 04-16-2010
  • Re: solar eclipse

     Hi Clint, NASA's eclipse web site has a handy tool you can use to find out when the next solar eclipse will be visible at various cities around the world.  I just used this tool to see when the next solar eclipse will be visible in Miami, Florida.  According to the web site, the next total solar eclipse visible in Miami, ...
    Posted to Solar Eclipses (Forum) by Kris Sigsbee on 04-15-2010
  • Re: hobbie

     Hi Joshua,  I'm not a football fan, but some of the people I work with are.  They were really excited last fall when the Iowa Hawkeyes found out they would play in the Orange Bowl.  Kris
    Posted to Scientist's Hobbies (Forum) by Kris Sigsbee on 04-15-2010
  • Re: hobbie

     Hi Rotem,  I was in the choir when I was in elementary school, but I don't sing much now, except maybe along with my car radio when no one else is there.  ;-) Kris
    Posted to Scientist's Hobbies (Forum) by Kris Sigsbee on 04-15-2010
  • Re: moon program

     Hi Chris,  Human spaceflight, such as the Apollo missions to the Moon and the Space Shuttle Program, were some of the things that got me interested in science and engineering careers.  In some ways, I am disappointed that this program was cancelled.   However, I think the decision to cancel this program was probably ...
    Posted to Other (Forum) by Kris Sigsbee on 04-15-2010
  • Re: ancient observatories

     Hi Laura, I think this question may fall a little bit outside the areas of expertise of the Solar Week scientists.  This is probably a better question to ask an archaeologist!  I did take a few anthropology courses a long time ago when I was in college, so I will do the best I can to answer your question.  As far as I can ...
    Posted to Ancient Observatories (Forum) by Kris Sigsbee on 04-15-2010
  • Re: Sun

     Hi Kayla, This depends on what part of the Sun you are considering.  Today in Iowa, it is about 80 degrees Fahrenheit, which is about 27 degrees Celsius, or 300 Kelvin (K).  The Sun's photosphere (the visible surface of the Sun) has a temperature of about 6000 K, so it is about 20 times hotter than a warm day in Iowa.  ...
    Posted to Facts about the Sun (Forum) by Kris Sigsbee on 04-14-2010
  • Re: Sun

     Hi Emilia,  The mass of all the planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune) put together is about 447 times the mass of the Earth.  The mass of the Sun is about 333,000 times larger than the mass of the Earth, so the answer to your question is yes!  The mass of the Sun is larger than the masses ...
    Posted to Facts about the Sun (Forum) by Kris Sigsbee on 04-14-2010
Page 1 of 22 (219 items) 1 2 3 4 5 Next > ... Last »

Theme design is SolarWeek by Igor Ruderman based on
Theme Mira 2007 by Chris Lotter.

Powered by Community Server (Commercial Edition), by Telligent Systems