Chinese manned space programme

On 18 November two Chinese astronauts, Jing Haipeng and Chen Dong, landed back on Earth after spending 33 days in space, an event which was hardly reported in the western media. During their mission they spent 30 days aboard the Tiangong-2 space station. Image from the Chinese National Space Administration Tiangong-2, shown in the mission patch above, is the second… Continue reading Chinese manned space programme

The long summer evenings

This post talks about two interesting effects to do with the way it get dark after the Sun has set.  The first one, which anyone who has travelled to places lying at different latitudes will have seen, is that the closer you are to the equator the quicker it gets dark after the Sun has… Continue reading The long summer evenings

What Went Wrong with the Schiaparelli Mars landing

The failure of the Schiaparelli landing

The Schiaparelli probe tragically failed to land on Mars due to its parachute malfunctioning, resulting in a crash at high speed. Despite this setback for the European Space Agency, the ExoMars Trace Gas Orbiter remains successful, set to study methane in the Martian atmosphere, making the overall mission worthwhile.

Schiaparelli’s landing on Mars

The Schiaparelli spacecraft on Mars

The Schiaparelli Spacecraft tragically failed to land on Mars, crashing at 300 km/h. Launched on March 14, 2016, with the ExoMars Trace Gas Orbiter, it aimed to study Martian surface conditions. It only planned to be operational for a week because it lacked solar panels, relying solely on a non-rechargeable battery.

The Three Phases of Twilight Explained

Updated 10 January 2026 Watching the Sun set below the horizon and the sky gradually get darker and darker is an almost magical experience.  Twilight is that time of the day, just after sunset, or just before sunrise when the Sun is below the horizon but the sky is not completely dark. It is valued by… Continue reading The Three Phases of Twilight Explained