jul 132013
Our Solar System has a Tail

  Like a comet, the Solar System has a tail. NASA’s Interstellar Boundary Explorer (IBEX) has for the first time mapped out the structure of this tail, which is shaped like a four-leaf clover. Scientists describe the tail, called the heliotail, based on the first three years of IBEX imagery in a paper published in the [continue reading]

mei 112012
Heliosphere's long-theorized bow shock does not exist

  New results from NASA’s Interstellar Boundary Explorer (IBEX) reveal that the bow shock, widely accepted by researchers to precede the heliosphere as it plows through tenuous gas and dust from the galaxy does not exist. Stars travel through the galaxy surrounded by a bubble of charged gas and magnetic fields, rounded at the front [continue reading]

apr 132012
Teamwork: IBEX and TWINS Observe a Solar Storm

On April 5, 2010, the sun spewed a two million-mile-per-hour stream of charged particles toward the invisible magnetic fields surrounding Earth, known as the magnetosphere. As the particles interacted with the magnetic fields, the incoming stream of energy caused stormy conditions near Earth. Some scientists believe that it was this solar storm that interfered with [continue reading]