Once in a lifetime opportunity to catch the comet Panstarrs with your naked eye as it passes the Sun. It should shine in its fullest on March 10, read on if you don't want to miss it.
If you don't want others to use your photos and images without your permission, you can create a so called custom watermark with your name or any other text you want.
Airplane mode on a phone is when you disable all the active connections like WiFi, bluetooth and mobile network. Let's see how to enable it so you don't need to turn off your phone on an airplane.