Do you have a favorite space app or a piece of technology for covering s...

Do you have a favorite space app or a piece of technology for covering space?
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Rocket launches are routinely webstreamed now. And I can watch a launch on my phone while going to pick up my family at the airport, as I did this month when the latest cargo rocket, an Orbital ATK Antares rocket, headed to the space station. SpaceX has gotten really good at showing video from its rockets, even the boosters descending back to Earth