The more astronomers learn about interstellar comet 3I/ATLAS, the colder its birthplace appears to have been. New observations made with the William Herschel Telescope (WHT) on La Palma in the Canary ...
These nine massive, mature galaxies contain many more relatively small stars than previously thought. Credit: Chloe Cheng. The James Webb Space Telescope has already found distant galaxies that seem ...
The Moon’s 580-mile-wide Orientale basin has three distinct ring structures. The image shows the basin’s gravitational signature (red indicates excess mass, blue indicates mass deficits), which ...
The Artemis II astronauts captured this image of the Moon during their lunar flyby in April 2026. Credit: NASA. Humans have been deliberately crashing spacecraft into the Moon for more than 65 years, ...
There are many meteor showers throughout the year. Here are the most prominent. For a beginner’s guide on meteors – what they are, where they come from, and how best to observe them – start with our ...
Messier 13 is the finest globular cluster in the Northern Hemisphere. Image: Adam Block. Messier 13 (NGC 6205) in Hercules is another of those truly celebrated deep-sky objects like the Orion Nebula, ...
An example of a German equatorial mount, in this case a Losmandy G11. Before looking at a sample of equatorial (EQ) mounts on the market, we should answer three questions: what are they, why are they ...
The ScopeTech STL-80A Maxi, photographed here on the author’s iOptron CubePro mount, epitomises what a refractor should look like. All images: Steve Ringwood. Although exotic Extra-low Dispersion (ED) ...
ESA’s Rosalind Franklin rover could touch down in the remains of a vast ancient water system on Mars, after new orbital mapping showed that clay-rich deposits at its landing site extend far beyond ...
M67 is an ancient open cluster in Cancer that hosts many red-giant stars. Image: Bernhard Hubl. Messier 67 in Cancer is somewhat of an anomaly for an open cluster, having formed billions of years ago, ...
NASA’s Fermi five-year view of the gamma-ray sky shows an excess of radiation coming from the centre of out Galaxy (centre of the image). Credit: NASA/DOE/Fermi LAT Collaboration Astronomers may not ...
The 100-metre aperture Robert C. Byrd Green Bank Telescope (GBT), inaugurated in 2001, is the world’s largest fully steerable radio telescope. It is also the world’s largest land-based moveable ...
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