Astronomy
Constraining the Orbits of Planet X and Nemesis
[/caption] If Planet X was out there, where would it be? This question posed by an Italian researcher turns out…
Volcanic Ash
[/caption] When volcanoes erupt, they can release large quantities of lava, rocks, hot gasses and volcanic ash. This volcanic ash…
List of Volcanoes
[/caption] There are thousands and thousands of known volcanoes around the world. Many have no names, and most are located…
What are Extinct Volcanoes?
There are three ways to describe a volcano's activity; there can be active, dormant, or extinct volcanoes. Active volcanoes have…
New Documentary “400 Years of the Telescope” Now Airing
A new 60-minute documentary created especially for the International Year of Astronomy is now airing on PBS stations in the…
What are Dormant Volcanoes?
Vulcanologists classify volcanoes into three groups: active, dormant and extinct. A dormant volcano is one that isn't currently active or…
Underwater Volcanoes
[/caption] Many volcanoes start out on land, rising above the surrounding landscape. But many more volcanoes get their start at…
Researchers Propose New Model for the Most Eager Supernova Explosions
Type 1a supernovae like 2005ke, above, are known to go off when one member of a star pair exceeds critical…
Balloon Experiment Solves Mystery of Far Infrared Background
[/caption] Scientists have found a way to look past Earth's atmosphere -- and ancient cosmic dust -- to glimpse galaxies…