Remove

1. M106
2. April 10, 2007

What

1. VLA (1)
2. Canes Venatici (1)

Where

1. Jet Propulsion … (1)
2. Washington, D.C … (1)
3. Maryland (1)

When

1. 2000 (1)
2. 2007 (1)
3. 2001 (1)
4. April 17, 2000 (1)