The latest results from the ATLAS Experiment

With the LHC start-up and the first runs at 900 GeV, 2.36 TeV and 7 TeV centre-of-mass energy in the years 2009 and 2010, the ATLAS detector started to record its first collision events. The integrated luminosity has now reached 3 inverse picobarn. These data have been used to perform detailed studies on the performance of the detector, including measuring charged and neutral particle mass resonances and the study of QCD cross-sections. The data have already made it possible to commission and calibrate the various ATLAS subdetectors, and understand their performance in detail. The first observation of Standard Model electroweak processes, in particular mass resonances, is also being used as a benchmark for validating the analysis and simulation tools. The status and performance of the detector will be briefly reviewed, the latest physics results will be summarized and limits on new physics will be given.