Rising Interest
Strong Revenue Potential
Universal Appeal
Creative
Astrophotography
Solar Astronomy
Lunar Observation
Star Parties
Telescope Making
Planetary Astronomy
Deep Sky Observing
Comet Hunting
Astronomy Software Development
Astronomy Blogging
Astronomy Clubs
Astronomy Education
Dark Sky Advocacy
Urban Astronomy
Portable Astronomy
Radio Astronomy
Astro-Tourism
Astronomy Podcasting
Variable Star Observing
Astronomy Outreach
