There is much to do and we should be doing it ASAP: There are Four Primary Breakdowns:

EARTH - MOON
Aurora
Van Allen Belt
Earth Magnetic Field
Predict and avoid large meteorites and solar flares (EMPs)

SOLAR SYSTEM
Understand Solar System History
Understand Asteroid Belt
Explore planetary moons
Orbital and robotic data collection from each planet
Explain dichotomy between gas giants and medium 'boulder' planets

SUN - SOLAR PHENOMENA
Sun Cycle of 11 years w sunspots
Solar Flares

DEEP SPACE - INTERSTELLAR
Black Holes
Quasars
Radiogalaxies
Dark Matter
Dark Energy
SETI

Capture and debrief "Teasers"
As Fox Mulder could tell you: "The Truth Is Out There"