Comet Nishimura: Chance to see newly-discovered green comet before it vanishes for 400 years

Meaning behind 'once in lifetime' Comet Nishimura explained - and how to see it

Comet Nishimura: 'Once-in-a-lifetime' chance to see new discovery visible to naked eye

Green comet TONIGHT: Best time to see 'awesome' 50,000-year-old comet fly past Earth

'Weird' comet heading straight towards the sun could be from another solar system

'Green comet' seen by Neanderthals about to make one last appearance above Earth

Chances of falling space junk killing somebody are a frightening 'ten per cent', say scientists

Comet NEOWISE in pictures - stunning photos of cosmic snowball over the UK last night

How to see Comet NEOWISE from the UK tonight as it reaches peak brightness

Comet NEOWISE will reach peak brightness tomorrow - best time to see it from the UK

NASA explains top tips to see Comet NEOWISE from the UK tonight

NASA shares stunning photo of Comet NEOWISE - here's how to see it from the UK this week

How to see Comet Neowise from the UK tonight

NASA snaps stunning space station photo of 'stars, cities, spaceships and a comet'

NASA shares stunning photo of Comet NEOWISE shooting over 'veins of heaven' clouds

NASA spots Comet NEOWISE from space station - how to see it from the UK this month

Comet NEOWISE will be visible from the UK this month - here's how and when to see it

Comet SWAN: Brightest comet of the year is visible from the UK this week - how to see it

Comet SWAN: How to see the brightest comet of the year from the UK this week

VIDEO

Huge comet will fly past Earth this week - and there's a chance you could see it

Meteor shower seen alongside green comet AND Big Dipper in stunning NASA image

Scientists discover fragment of comet INSIDE 4.5 billion-year-old meteorite

Mysterious space rock Oumuamua is comet and NOT alien probe, scientists claim

Comet 46P/Wirtanen: NASA captures STUNNING image of the 'Christmas comet'

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