NASA spacecraft makes closest-ever approach to sun by human-made object​

Science, World, NASA, Parker Solar Probe, Sun 

​The spacecraft passed 3.8 million miles (6.1 million km) from the solar surface on Dec. 24, flying into the sun’s outer atmosphere called the corona. The spacecraft passed 3.8 million miles (6.1 million km) from the solar surface on Dec. 24, flying into the sun’s outer atmosphere called the corona.