The radius valley is a well-known dip in the number of exoplanets with sizes between ‘super-Earth’ and ‘sub-Neptune’ types.

Short primer on dithering

Explainer on Bit Depth

Telescope Imaging Filters Explained

A young hot star by the name of Fomalhaut has been observed to have a more complex ring structure of debris than originally thought.

Today is podium day!

Telescope Focal Ratio

Since the 1980s, scientists have been aware that Saturn’s innermost icy rings are gradually eroding onto the gas giant’s atmosphere.

Today we are announcing the new contests for May 2023! If you are new to our monthly contests, you should read the general rules first.

A rogue black hole has been spotted by astronomers, speeding away from the core of a distant galaxy at 20 million times the mass of the sun.

Has the dazzling beauty of the cosmos left you with a burning desire to capture celestial wonders, but you find yourself frustrated by the seemingly insurmountable challenges that come with astrophotography?

Scientific imaging has constantly evolved since photographic emulsion was first used to capture images covering a wide spectral bandwidth, from X-rays to infrared radiation.