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DarkSky Petition Urges FCC to Reverse Space Mirror Approval
Thursday, August 13, 2026 by Richard Harris
DarkSky and a coalition of scientific, environmental, and civic organizations have filed a formal petition urging the Federal Communications Commission to reconsider and reverse its approval of an experimental orbital space mirror project. The petition asks the agency to pause the authorization whil...
Lunar surface impact from Falcon 9 creates rare observing opportunity
Tuesday, August 4, 2026 by Trey Abbe
Most lunar impacts arrive without warning. A small meteoroid strikes the Moon and produces a flash that may last less than a second. Unless a telescope and camera happen to be pointed at the right location at the right time, the moment is gone before anyone knows it happened. The Falcon 9 uppe...
ASI2600MM vs ASI6200MM vs ASI461MM: Sensor Sizes
Sunday, August 2, 2026 by Richard Harris
There is a surprising amount of confusion surrounding astronomical camera sensor sizes. I regularly hear one group argue that full frame is automatically better, while another insists that larger sensors are basically identical to smaller ones except for the amount of sky they capture. Neither posit...
Optolong L2 Dual Combo Filters Review
Thursday, July 30, 2026 by Jim Thompson
Optolong's multi-narrowband (MNB) filter is called the L-Synergy. It has a 7nm wide pass band at O-III and another at S-II. When paired with their existing L-eXtreme filter and a one-shot colour (OSC) camera, one is able to produce nebula images using the Sulphur-Hydrogen-Oxygen (SHO...