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The best space images of 2019

Nasa 're-masters' the greatest ever 'selfie'

The big science and environment stories of 2019

Distant object 'like nothing seen before'

'Space snowman' appears squashed

Best image yet of 'space snowman'

'Snowman' shape of distant Ultima revealed

Nasa probe survives distant flyby

Brian May celebrates distant exploration. Audio, 00:02:57Brian May celebrates distant exploration

Nasa waits for signal from Ultima Thule probe

Where is Ultima Thule? Video, 00:01:04Where is Ultima Thule?

The 'frontier of the Solar System' Video, 00:02:14The 'frontier of the Solar System'

Spacecraft on path for historic flyby

New Horizons strikes distant gold

Looking forward to New Horizons' next target. Audio, 00:04:46Looking forward to New Horizons' next target

Pluto 'has slushy ocean' below surface

What is Pluto's 'heart' made of? Video, 00:01:51What is Pluto's 'heart' made of?

Pluto's 'beating heart' explained

Pluto's Sputnik Planum explained. AudioPluto's Sputnik Planum explained