Psyche is a mission proposed by Arizona State University. It is named after 16 Psyche a very interesting minor planet in the asteroid belt.
Arizona State University (School of Earth and Space Exploration) has a very nice web-page outlining the mission and the asteroid – well worth the visit.
The big news is that Psyche HAS been selected as one of the two Discovery missions. The probable launch date is in 2023. Congratulations to ASU!
The other mission is called appropriately named Lucy and it involves what are called fossils of planetary formation, namely Trojan asteroids in Jupiter’s orbit.
Lucy Mission (pdf file).
The NASA announcement about the two missions with very good descriptions of both.