The Parker Solar Probe is going to go closer to the sun than any spacecraft has come before. It will take seven years to fly 93 million miles to reach the sun's corona, its outermost atmosphere. The probe will withstand temperatures up...

This Khan Academy resource is a video about a Supernova clarification.

This Khan Academy resource is a video about Supermassive Black Holes.

What steps should planetary explorers take to prevent contaminating other planets with life from Earth?

New research finds a small -- but present -- chance of a collision between Earth and one of its planetary neighbors in the next few billion years.

NASA officials weigh in on the flurry of planetary science news from the past week.

Microbes may once have thrived in a freshwater lake on Mars, according to clues in an ancient rock.

The Hubble Space Telescope has been staring out into deep space since 1990. In celebration of its 25th Anniversary, this is a parody of Iggy Azalea's song "Trouble." [1:20]