Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

I find the existence of what I would call "science fiction folklore" set in Eastern Europe to be quite interesting. It revolves around nuclear radiation and mysterious, otherworldly beings as ...

The largest impact event in recorded history may have been caused by the shock waves generated by an iron asteroid that entered the Earth's atmosphere at a shallow angle before heading back into space ...

A full century after the mysterious Tunguska explosion in Siberia leveled an area nearly the size of Tokyo, debate continues over what caused it. Many questions remain as to what crashed into the ...

The Tunguska event, a seismic blast that rocked a remote Siberian forest more than a century ago, is believed to have been caused by a meteor that exploded before it hit the ground. A new study sheds ...

[For the tl;dr crowd: A scientist claims to have found meteorites from the Tunguska event. I am very skeptical, because of reasons, but willing to be convinced.] [UPDATE (May 7, 2013): A Russian ...

A flurry of reports from Russia about the discovery of fragments of an alien spaceship at the site of the 1908 Tunguska explosion may be nothing more than wish fulfillment by devotees of a ...

Today is International Asteroid Day, marking the 111th anniversary of the most destructive asteroid event in recorded history: The Tunguska event. On June 30, 1908 near the Podkamennaya Tunguska River ...

People have been in the valley of the Jordan River for a long, long time. Long enough, in fact, that we're aware of a strange gap in the physical record of human history there, beginning with the mass ...