The search for Planet X

The search for Planet X

Above: Now classed as a dwarf planet, Pluto was discovered in February 1930 by Clyde Tombaugh. Image credit: NASA/JHU APL/SwRI/A. Parker. By David Ellyard AT A TIME WHEN WE ARE FINDING PLANETS by the hundred orbiting stars other than our own, it is worth recalling the...
Most distant images ever made

Most distant images ever made

For a short time, this New Horizons Long Range Reconnaissance Imager (LORRI) frame of the ‘Wishing Well’ star cluster, taken December 5, 2017, was the farthest image ever made by a spacecraft, breaking a 27-year record set by Voyager 1. About two hours later, New...