GEO600 Diary

Building and operating a gravitational-wave detector

Since September 1995 we have been building and operating the British-German gravitational-wave detector. These pages show how GEO600 has been developing over the years. Here you find current pictures from the detector site and information from our labs.

First neural-network sensing and control in a gravitational-wave detector: GEO600 scientists demonstrate first-ever successful implementation [more]
O3GK publication on arXiv [more]
GEO600 helps searching for Dark Matter [more]
Repairing the east arm vacuum system [more]
The GEO600 laser system has been in operation for 10 years [more]
GEO600 reaches 6 dB of squeezing [more]
GEO600 and KAGRA join forces for test observation run [more]
Suspension of O3 [more]
Repairing the vacuum system with pure nitrogen [more]
Lower Saxony Science Minister visits GEO600 [more]
The vacuum leak causes problems yet again [more]
Almost 6 dB of squeezing in GEO600 [more]
A vacuum leak in the north arm [more]
Lower Saxony Prime Minister visits GEO600 [more]
Advanced LIGO detectors begin second observation run “O2” [more]
Direct detection of gravitational waves [more]
Advanced LIGO detectors begin first observation run [more]
Spatially resolved heating of the GEO600 beam-splitter [more]
Towards a darker dark port [more]
One year of squeezing [more]
Preparations for laser power increase [more]
Joint GEO600 Virgo run [more]
Let the squeezing begin! [more]
Start of S6/VSR2 [more]
Astrowatch [more]
Maintenance and repairs [more]
GEO600 joins the S5 science run [more]
Fourth Science Run “S4” [more]
Upgrade of the detector [more]
Two science runs [more]
Improvement of the GEO sensitivity and S1 [more]
Optical components and their suspensions [more]
Getting closer to a working detector [more]
Hardware installations on the site [more]
Vacuum system and EXPO 2000 [more]
Vacuum tubes and the cleanroom [more]
First buildings and the arm trenches [more]
Breaking the ground for gravitational waves [more]
Go to Editor View