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Space

Was Planet Nine exiled from the solar system as a baby?

The chance of a planet forming in the outer reaches of the solar system – a hypothetical Planet Nine – could be as high as 40 per cent, but it would have been a rough start

News

Space

New dwarf planet spotted at the edge of the solar system

News

Space

Risk of a star destroying the solar system is higher than expected

News

Space

How long is a day on Uranus? Slightly longer than we thought, it seems

News

Space

We've spotted auroras on Neptune for the first time

News

Chemistry

Water can turn into a superacid that makes diamonds

News

Most quakes on Mars happen during the summer – and we don’t know why

Space

Most quakes on Mars happen during the summer – and we don’t know why

News

G0T7G0 Milky Way streaks across the sky at Broad Haven in Pembrokeshire with the iconic Church Rock out to sea. Also pictured is Saturn

Space

How to tell a planet from a star – and one planet from another

Regulars

Space

How to see every planet in the solar system at once this week

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Space

How to see all the solar system’s planets in the night sky at once

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show

News

Space

The physicist on a mission to understand Mercury's epic solar storms

Features

Space

Saturn’s rings may be far older than we thought

News

Space

Distant dwarf planet Makemake might have a surprising ice volcano

News

Space

New Scientist recommends Brian Cox's new series, Solar System

Culture