Category: Astronomy & Space

Did Mars’ Methane Come from Comets?

One of the most provocative questions about Mars today is what is causing periodic spikes in the amount of methane in the planet’s atmosphere. On Earth, methane is strongly tied to biological activities, raising the prospect that colonies of methane-emitting microbes might be living on Mars. Another option is that the gas stems from geological

2016 Full Moon Calendar

The moon shows its full face to Earth once a month. Well, sort of. In fact, when things are perfectly aligned and the moon is 100 percent full, there is a lunar eclipse; so, in reality most of the time the moon is never perfectly full. And sometimes — once in a blue moon —