The other accelerators at CERN are:
Google CERN or Large Hadron Collider.
The first experiments were done mainly to check that the Large Hadron Collider itself worked at all. Later experiments will then do the actual data collection, from the collisions.
The Large Hadron Collider will work mainly with protons - hence the name (the proton is a kind of hadron). It will also do some experiments with other particles, for example, with certain atomic nuclei.
No you can find updates on the Large Hadron Collider's (LHC) progress at the link below.
CERN's Large Hadron Collider has been repaired and is in full operation. (January 2012)
No. As far as is known there are no aliens. The large hadron collider is a research tool, not a weapon.
the hadron collider has a diameter of 3.8 metres and has a circumference of 17 miles (27 kilometres)
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Large Hadron Collider
27 km
the Large Hadron Collider