As astronomical instruments became increasingly precise, however, other similar-sized objects were found beyond the orbit of Neptune. In 2006, almost a decade after Tombaugh's death, the International Astronomical Union reclassified Pluto as a dwarf planet. The New Horizons mission carries some of ...
Pluto's Discoverer Makes His Greatest Journey 25 Years after Death: The New Horizons Spacecraft Is Carrying the Ashes of Pluto's Discoverer, Clyde Tombaugh... Motor vehicle crashes are the leading cause of death for U.S. oil and gas extraction workers; the motor vehicle fatality rate is 8.5...