Sagittarius B2
...that Sagittarius B2 is a giant molecular cloud near the Galactic Center where half of all known interstellar molecules were first discovered?
...that <b id="mwFKg"><a href="./Sagittarius_B2" id="mwFKk" rel="mw:WikiLink" title="Sagittarius B2">Sagittarius B2</a></b> is a giant <a href="./Molecular_cloud" id="mwFKo" rel="mw:WikiLink" title="Molecular cloud">molecular cloud</a> near the <a href="./Galactic_Center" id="mwFKs" rel="mw:WikiLink" title="Galactic Center">Galactic Center</a> where half of <a class="mw-redirect" href="./List_of_molecules_in_interstellar_space" id="mwFKw" rel="mw:WikiLink" title="List of molecules in interstellar space">all known interstellar molecules</a> were first discovered?