Astronomers are now regularly detecting planets thousands of light years from Earth – but have we missed one in our own Solar System?

1 Dec 00:00 AEDT (30 Nov, 13:00 UT) 15 Dec 23:00 AEDT (12:00 UT) 31 Dec 22:00 AEDT (11:00 UT) The chart accurately matches the sky on the dates and times shown for Sydney, Australia. The sky is differ

You may have bought this December issue of BBC Sky at Night Magazine because you’ve been given – or you’ve treated yourself to – a new telescope for Christmas. And you may be wondering what to do with

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If you thought 2025 was a roller coaster, wait until 2026 gets started. Uranus, Neptune and Pluto are aligned taking us into a new era. Earthquakes may change the shape of parts of the world, while se

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