1. The hoax actually began a year after Mars made a historically close approach to the Earth, in the summer of 2003.

2. The difference between that hoax and more recent ones is the speed at which the news disseminates.

3. The same was later confirmed to be a hoax call.

4. Some thought it was a hoax at first, but after the initial confusion they realized the severity of the situation.

5. Trump has been largely silent about climate change since he took office but has called it a hoax in the past.

6. Those turned out to be a hoax created by road flares tied to helium balloons.

7. The company that created the system that resulted in hoax news stories should try to eliminate them, and with any luck it will.