Detecting clues: The discovery, by Nasa's Interstella Boundary Explorer (IBEX) ship, gives the most complete glimpse yet of what lies beyond our solar system
The Outer Limits: Nasa Probe Sees The 'Edge' Of Our Solar System For First Time - And It's Completely Different From What We Thought -- Daily Mail
* Solar system 'travelling more slowly than thought'
* 'Bow shock' - like a sonic boom in space - does not exist
* 25 years of research turned on its head
* Detected by the orbitiing IBEX probe, with information from Nasa's two Voyager craft
Nasa's probes have seen the 'edge' of our solar system for the first time - and it's completely different from what scientists thought.
Our solar system is flying through space more slowly than we thought - and Nasa's IBEX - Interstellar Boundary Explorer - has found it doesn't have a 'bow shock', an area of gas or plasma that shields our solar system as it hurtles though space
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My Comment: This is what I love above space science .... learning things that we never thought of before.