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

An artist’s impression of Cha 1107-7626 accreting material ...

Cecil Navick and Francis Bozon, captured remotely via Obstech, El Sauce Observatory, Chile, 4 May–28 June 2025 Cecil and Francis say: “We chose NGC 6164 because it’s rarely photographed, plus it’s a t

The comet dubbed 3I/ATLAS, a rare extrasolar intruder, continues to barrel through the Solar System, attracting interest and speculation from astronomers and space scientists worldwide. Harvard astron