Pieces of a <a href="https://en.wikipedia.org/wiki/Meteorite" id="mw7w" rel="mw:WikiLink" title="Meteorite">meteorite</a> land near <a href="https://en.wikipedia.org/wiki/Chicora,_Pennsylvania" id="mw8A" rel="mw:WikiLink" title="Chicora, Pennsylvania">Chicora, Pennsylvania</a>. The meteorite is estimated to have weighed 450<span id="mw8Q" typeof="mw:Entity"> </span><a class="mw-redirect" href="https://en.wikipedia.org/wiki/Metric_ton" id="mw8g" rel="mw:WikiLink" title="Metric ton">metric tons</a> when it hit the Earth's atmosphere and exploded.