Compound, or catadioptric, telescopes combine lenses and mirrors for a compact option, suitable for both planetary and ...

If it's reach you want, the Canon RF 200-800mm F6.3-9 IS USM is the obvious choice for most wildlife photographers. With the ...

Price history: It's been cheaper during previous Prime Day and Black Friday events, but this price of $679 is the best we've ...

The camera, now bolted to the end of a giant telescope at the Rubin Observatory, is expected to shoot photos of 20 billion galaxies, to be stitched together in broad panoramas giving astronomers ...

It’s part science, part magic – and now you can explore the Moon and stars together for just £99. Here’s why this clever ...

Jun. 22—Images from the world's largest camera, built in the Bay Area, have just been released, providing a first-of-its-kind window across deep space. Over the next decade, the device, mounted ...

PhoSim simulates the atmosphere, including air turbulence, as well as distortions from the shape of the telescope’s mirrors and the electrical properties of the sensors. The photons are propagated ...

Credit: A Rainbow Mosaic of the Rosette and the Christmas Tree Nebulae © Shaoyu Zhang Behold! The 2025 ZWO Astronomy ...

The observatory aims to map the night sky over a decade, potentially discovering millions of asteroids and billions of ...

After decades of planning and construction, the Vera C. Rubin Observatory is about to begin a 10-year survey of the southern ...

It's the last day of Amazon Prime Day and some of these deals are definitely ending tonight. Grab some new optics in time to see Saturn's rings!