private void ActivateAPOD(object sender, RoutedEventArgs e)
{
RestTalker nasaAPOD = new RestTalker("https://api.nasa.gov/planetary/apod?api_key=DEMO_KEY");
APOD todaysPhoto = nasaAPOD.talkToRestClient();
Main_Grid.Background = new ImageBrush {
ImageSource = new BitmapImage(new System.Uri(todaysPhoto.Url)), Stretch = Stretch.Fill
};
TitleWords.Text = "NASA'S A.P.O.D.:\n" + todaysPhoto.Title.ToUpper();
}