Name a type of astronomical object found in space (like an asteroid)
Hypervelocity star
Hypervelocity stars move fast enough to escape their galaxy's gravitational pull.
Source:science.nasa.gov
Shepherd moon
A shepherd moon is a natural satellite whose gravity helps maintain a planetary ring's structure.
Source:science.nasa.gov
1:3 resonant TNO
A 1:3 resonant TNO orbits the Sun once for every three orbits of Neptune.
Sources:arxiv.orgen.wikipedia.org