<story><title>Hubble Observes First Confirmed Interstellar Comet</title><url>https://www.nasa.gov/feature/goddard/2019/hubble-observes-1st-confirmed-interstellar-comet</url></story><parent_chain><item><author>windsurfer</author><text>I hope we can get spectroscopy done on the tail! It would give us a really unprecedented look into the material composition of other solar systems.</text></item></parent_chain><comment><author>doctoboggan</author><text>The included video stated that the comet is composed of similar materials to those that make up our solar system. I am assuming they discovered that using Hubble&amp;#x27;s spectroscopy capabilities (STIS).</text></comment>
<story><title>Hubble Observes First Confirmed Interstellar Comet</title><url>https://www.nasa.gov/feature/goddard/2019/hubble-observes-1st-confirmed-interstellar-comet</url></story><parent_chain><item><author>windsurfer</author><text>I hope we can get spectroscopy done on the tail! It would give us a really unprecedented look into the material composition of other solar systems.</text></item></parent_chain><comment><author>digitalsushi</author><text>Wouldn&amp;#x27;t we get the same composition from the spectral analysis of the suns they orbit?&lt;p&gt;Serious question, not a poke.  I&amp;#x27;m not an astronomy nerd and would love some education from a hn friend.</text></comment>