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Full Moon calendar 2025

Check the dates for every full Moon throughout the year, learn about the Moon's phases, 'supermoons' and more

Astronomy with the naked eye

Learn what you could see in the night sky with no equipment from the Royal Observatory Greenwich; from galaxies and meteor showers to comets, star clusters, cloud formations and more

Noctilucent clouds: what are they and when can you see them?

Discover more about the astronomy phenomenon that makes clouds appear to glow at night

Lunar eclipse guide: When and where to see in the UK

Find out what a lunar eclipse is and when the next total lunar eclipse in the UK will occur

How to sight the new crescent Moon

In the Islamic calendar, the new crescent Moon marks the start of the month

Orionid meteor shower 2025: when and where to see it in the UK

What is it, when is it and where can I see the Orionid meteor shower this year?

Ursid meteor shower: When and where to see it in the UK

What is the Ursid meteor shower, when does it happen and how can I see it in 2025?

Space and astronomy highlights in 2025

What's worth looking up for in 2025? Discover this year's must-see moments with Royal Observatory astronomers

Summer and winter solstices explained – how the Sun determines the longest and shortest days of the year

Find out how the position of the Sun determines the longest and shortest days of the year in this special Royal Observatory Greenwich Illuminates extract

Space and astronomy

Astronomy guides