Gaia Alerts app. Receive Gaia alerts on your phone or tablet:
Android app soon on Google Play.
The full list of all Gaia Science Photometric Alerts can be found at http://gsaweb.ast.cam.ac.uk/alerts/alertsindex. The full list is also avaialble for download in CSV format from http://gsaweb.ast.cam.ac.uk/alerts/alerts.csv or you can download a copy from Alerts CSV page on this website. The alerts published during the validation phase (before July 2015) are also listed on the Gaia Photometric Science Alerts: Validation Phase page.
Status update (1 July 2016): Gaia Alerts have resumed operations after the transition between data segments. We are currently processing the data received so far in segment 3 and will soon publish all alerts from the segment-3 data. Data segment 3 started on 23 May 2016 (see Data Segments and Processing Cycles).