Why are radio telescopes highly effective tools for mapping Supernova Remnants obscured by dust?
Answer
Radio waves can penetrate the obscuring dust that hides visible light from many SNRs.
Radio telescopes are very effective because radio waves possess the necessary wavelength characteristics to pass through the extensive clouds of interstellar dust that often obscure the optical light emitted by the remnant.

Related Questions
How much energy can the expanding cloud of a supernova momentarily radiate during its brightest phase?What characteristic primarily defines the Sedov-Taylor phase of a supernova remnant's expansion?What is the approximate maximum speed reached by the material ejected during a supernova explosion?Which phenomenon causes the edges of a shell-type supernova remnant to appear brighter than the center when observed?What is the key observational characteristic used to differentiate a Thermal composite remnant from a true Crab-like (Plerion) remnant in X-rays?What is the primary mechanism causing the onset of the pressure-driven snowplow (radiative) phase?Why are radio telescopes highly effective tools for mapping Supernova Remnants obscured by dust?What critical role do Supernova Remnants play regarding the chemical composition of the interstellar medium?What type of emission signature is characteristic of Crab-type remnants (plerions) resulting from the pulsar's activity?How does the geometry of the Cygnus Loop suggest information about its immediate environment?