Scott Dodelson

Click to enlarge. The left panel shows a simulated map of an unlensed cosmic microwave background. The center panel shows the same map if a large galaxy cluster were along the line of sight. Note that the scale on these two panels goes to 100 microKelvin. The right panel shows the difference between the first two panels. The scale is now down to 10 microKelvin. (Plots are in units of arcminutes.) Image: Antony Lewis and Lindsay King, Institute of Astronomy…

The Large Synoptic Survey Telescope will image the sky for 10 years, sharpening our understanding of the universe. Image: LSST Editor’s note: The official startup of the $473 million Large Synoptic Survey Telescope project was announced on Monday (see press release below). The initiation of LSST construction represents the next step in a journey to map the cosmos in order to understand fundamental physics. The National Science Foundation is the project’s lead federal agency and supports the central project office,…