Cosmology@Home lets you volunteer your spare computer time (like when your screen saver is on) to help search for the model which best describes our Universe and to find the range of models that agree with available cosmological and particle physics data.

conceptFEATURED CONCEPT: Dark Matter
Unlike ordinary matter, dark matter does not emit or absorb light--or any other type of electromagnetic radiation. Consequently, dark matter cannot be observed directly using a telescope or any other astronomical instrument that has been developed by humans. If dark matter has these strange properties, how do we know that it exists in the first place?
Like ordinary matter, dark matter interacts gravitationally with ordinary matter and radiation. Astronomers study the distribution of dark matter through observing its gravitational effects on ordinary matter in its vicinity and through its gravitational lensing effects on background radiation. The background image shows the bullet cluster, a famous example where the visible matter does not follow the mass distribution.
Combining all the available evidence, dark matter represents about 83% of the matter content of the universe. Read more about dark matter on this web page. Let us know your questions and comments on the message board.

User of the Day

User profile Profile [AF>France>Astro]Mandrake


LIGO Press Conference
Today at 10:30 EST there is a press conference from the LIGO collaboration. The rumors are that they will announce they have detected for the first time ever gravitational waves, in this case from the merger of two black holes! There are also rumors they will announce nothing because their policy is to insert fake signals into their data and not tell those doing the analysis until the very end (a so called "blind analysis"). Tune in to find out, this should be an exciting event! Check out here and here for two nice descriptions of gravitational waves of varying levels of technicality. 11 Feb 2016, 11:31:45 UTC · Comment

New beta app for analyzing Planck data
Today we are releasing a new app (in beta for the moment) to help analyze Planck data. Read more about it in the comments. Start crunching this app now for a chance to receive thanks in the acknowledgements of our forthcoming paper! 31 Jan 2016, 17:34:04 UTC · Comment

camb_boinc2docker no longer beta
As of right now the camb_boinc2docker application is no longer in beta, meaning everyone will receive these jobs by default unless they have specifically chosen not to. Please read the FAQ and don't hesitate to post on the forums if you run into issues. Thanks everyone and happy holidays! 22 Dec 2015, 16:38:06 UTC · Comment

Video of C@H presentation at Dockercon
Here's the video and slides of my talk at the Dockercon conference in November giving some details about C@H. There's a little bit on the science side and a little bit on the technical side for those of you that are interested! 11 Dec 2015, 13:25:58 UTC · Comment

C@H back up
We were down for the last ~24hrs due to some networking issues which are now fixed. We apologize for the inconvenience. 11 Dec 2015, 12:52:16 UTC · Comment

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