A <a href="https://en.wikipedia.org/wiki/Transit_(satellite)" id="mw5A" rel="mw:WikiLink" title="Transit (satellite)">Transit-5bn</a> satellite fails to reach orbit after launch; as it re-enters the atmosphere, <span about="#mwt44" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"2.1"},"2":{"wt":"lb"}},"i":0}}]}' id="mw5Q" typeof="mw:Transclusion">2.1 pounds (0.95</span><span about="#mwt44" typeof="mw:Entity"> </span><span about="#mwt44">kg)</span> of radioactive <a href="https://en.wikipedia.org/wiki/Plutonium" id="mw5g" rel="mw:WikiLink" title="Plutonium">plutonium</a> in its <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Systems_Nuclear_Auxiliary_Power_Program" id="mw5w" rel="mw:WikiLink" title="Systems Nuclear Auxiliary Power Program">SNAP</a> <a href="https://en.wikipedia.org/wiki/Radioisotope_thermoelectric_generator" id="mw6A" rel="mw:WikiLink" title="Radioisotope thermoelectric generator">RTG</a> power source is widely dispersed.