Clyde Tombaugh

The World

After a long, cold journey, NASA’s New Horizons probe has Pluto in its sights

Science

Talk about a long, strange trip. A NASA spacecraft called New Horizons has traveled 3 billion miles through space over the last nine years and now is approaching Pluto. Aboard: Ashes of the astronomer who discovered the distant orb in 1930.

The World

Buzz Aldrin and Neil deGrasse Tyson celebrate the 80th anniversary of Pluto’s discovery

Global Politics