most complete 3D map of universe revealed

Today, astronomers unveiled the most complete 3-D map of the local universe (out to a distance of 380 million light-years) ever created. Taking more than 10 years to complete, the 2MASS Redshift Survey (2MRS) also is notable for extending closer to the Galactic plane than previous surveys – a region that’s generally obscured by dust. Read more about most complete 3D map of universe revealed[…]

run-one and run-this-one for Ubuntu – cron helpers

The robotic precision of cron ensures that each subsequent job runs, on time, every time. But cron doesn’t check that the previous execution of that same job completed first — and that can cause big trouble. This often happens to me when I’m traveling and my backup cronjob fires while I’m on a slow up-link.  Read more about run-one and run-this-one for Ubuntu – cron helpers[…]