Why aren't DENSITY & DISTANCE text displayed?

Hi, all!
I just want to get something clear about default template rules. I have the following XML file and XSL stylesheet:

<?xml version="1.0"?>
<PLANETS>
  <PLANET>
    <NAME>Mercury</NAME>
    <MASS UNITS="(Earth=1)">0.0553</MASS>
    <DAY UNITS="days">58.65</DAY>
    <RADIUS UNITS="miles">1516</RADIUS>
    <DENSITY UNITS="(Earth=1)">0.983</DENSITY>
    <DISTANCE UNITS="million miles">43.4</DISTANCE>
  </PLANET>
</PLANETS>
<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl :-o	 utput method="html"/>
  <xsl:template match="/PLANETS"> 
    <HTML>
      <HEAD>
        <TITLE>The Planets Table</TITLE>
      </HEAD>
      <BODY>
        <H1>The Planets Table</H1>
        <TABLE BORDER="2">
          <TR>
            <TD>Name</TD>
            <TD>Mass</TD>
            <TD>Radius</TD>
            <TD>Day</TD>
          </TR>
          <xsl:apply-templates/>
        </TABLE>
      </BODY>
    </HTML>
  </xsl:template>
  <xsl:template match="PLANET">
    <TR>
      <TD><xsl:value-of select="NAME"/></TD>
      <TD><xsl:apply-templates select="MASS"/></TD> 
      <TD><xsl:apply-templates select="RADIUS"/></TD>
      <TD><xsl:apply-templates select="DAY"/></TD>
    </TR>
  </xsl:template>
  <xsl:template match="MASS">
    <xsl:value-of select="."/>
    <xsl:text> </xsl:text>
    <xsl:value-of select="@UNITS"/>
  </xsl:template>
  <xsl:template match="RADIUS">
    <xsl:value-of select="."/>
    <xsl:text> </xsl:text>
    <xsl:value-of select="@UNITS"/>
  </xsl:template>
  <xsl:template match="DAY">
    <xsl:value-of select="."/>
    <xsl:text> </xsl:text>
    <xsl:value-of select="@UNITS"/>
  </xsl:template>
</xsl:stylesheet>

When I do the transformation I get a table that displays the name, mass, radius, and day of Mercury. What I am wondering is why doesn't the text data for the density & the distance get generated outside the table? Is this because the template for PLANET explicitly states what to do so that the density and distance elements aren't even looked at?
I guess my question is if you have a template or templates for a node (with a match attr) will this prevent the default template rule from being applied to sibling nodes even if they fail the match test? I just want to be very clear on how default template rules get applied.
The example XML & XSL files are based on the examples in Inside XSLT by Steven Holzner.
Thanks,
John

I guess my question is if you have a template or templates for a node (with a match attr) will this prevent the default template rule from being applied to sibling nodes even if they fail the match test?
I believe so. If you want to allow child nodes processing, add <xsl:apply-templates/> at the end of the template
<xsl:template match="PLANET">
   <TR>
       <TD><xsl:value-of select="NAME"/></TD>
       ...
       <xsl:apply-templates/>
   </TR>
</xsl:template>
and see all default templates at work

[ March 17, 2002: Message edited by: Mapraputa Is ]