Carrington event

The Carrington Event: When the skies lit up with horror!

On September 1, 1859, the Sun spewed electrified gas and subatomic particles amounting to the energy of 10 billion atomic bombs towards the Earth, causing telegraph communications to fail, literally shocking operators, and causing systems to catch fire. Northern Lights were reported as far south as Cuba and Hawaii, allowing witnesses to read newspapers by the light of the auroras alone.
Mars was once inhabited, then what happened to it? 2

Mars was once inhabited, then what happened to it?

Did life begin on Mars and then travel to Earth for its blossoming? A few years ago, a long-debated theory known as "panspermia" got new life, as two scientists separately proposed that early Earth lacked some chemicals essential to forming life, while early Mars likely had them. So, what's the truth behind the life on Mars?
vikings visby lense telescope

The Viking Lenses: Did the Vikings make a telescope?

The Vikings were famous for their love of exploration and discovery. Their journeys to new lands and discoveries of new cultures are well documented. But did they also make a telescope for this particular purpose? Perhaps unsurprisingly, the answer is not clear cut.