From colliding galaxies to supermassive black holes, we take a look at some of the strangest sights in the universe

Thursday 2 Dwarf planet Ceres reaches opposition in the constellation of Cetus, shining at mag. +7.6. Find further details on page 47. Friday ▶ 3 Tonight and the night of 17/18 October are good times

GLOBAL EYE

Autumn is a brilliant time to get outdoors, connect with nature and boost your sense of wellbeing. Tune into meditative forest-bathing, wild swim in the sea and raise your eyes to the mystery of star-studded skies. Or simply walk, reflect and get creative, says Kerry Fowler

1 Oct 00:00 AEST (30 Sep, 14:00 UT) 15 Oct 23:00 AEDT (12:00 UT) 31 Oct 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

TRAPPIST-1 is a red dwarf star located about ...