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A hypothetical view of Planet Nine

Space

More evidence for Planet Nine as odd celestial alignment emerges

Another celestial object has been found in a group with strangely similar orbits, implying they are shepherded by something - possibly a mysterious ninth planet

News

Mercury in false colour, imaged by the Messenger probe

Space

Mercury once had a graphite crust floating on a sea of magma

News

Artist's impression of planet nine

Space

Planet Nine hunters enlist big bang telescopes and Saturn probe

News

A desert, with a few stones and dry branches in the foreground and a very bright sun shining in a clear, dark blue sky

Earth

Planets with too much carbon dioxide could lose oceans to space

News

Earth

Why do people believe Earth is flat in the 21st century?

Opinion

Space

Lonely exoplanet orbits its star at greatest distance yet seen

News

How Planet Nine may have been exiled to solar system's edge

Earth

How Planet Nine may have been exiled to solar system's edge

News

Hints that 'Planet Nine' may exist on edge of our solar system

Space

Hints that 'Planet Nine' may exist on edge of our solar system

News

Space

Is Pluto no bigger than the moon?

Uncategorized

Space

Crater count led Mars historians astray

Some Martian surfaces may be up to 100 times older than previously estimated, due to a flawed method used by planetary scientists

News

Space

Robot finds life in a Mars-like desert

News

Space

What is making methane on Mars?

News

Space

No oceans, but maybe a swamp

News

Space

Ring of fire

News