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immune system

Mars's dry surface

Space

A dash of hydrogen and methane could have kept Mars warm

The Red Planet’s thin atmosphere of carbon dioxide can’t retain enough heat for water to flow on the planet, but new calculations suggest how it was once warmer

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Window to hell: Io's strongest volcano changes face as we watch

Earth

Window to hell: Io's strongest volcano changes face as we watch

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First ever lightning-mapping satellite set for take off

Earth

First ever lightning-mapping satellite set for take off

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Europa

Life

Spacecraft could taste Europa's sea by sampling its atmosphere

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Monday's bright supermoon will be closest to Earth in 68 years

Space

Monday's bright supermoon will be closest to Earth in 68 years

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I watched a rover search for ancient life on Mars – I mean, Utah

Life

I watched a rover search for ancient life on Mars – I mean, Utah

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ExoMars crash must not mean abandoning next Red Planet rover

Space

ExoMars crash must not mean abandoning next Red Planet rover

Comment

James Webb Space Telescope

Space

Space telescope duo will showcase the solar system in 3D

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galaxy

Space

The universe lines up along the 'axis of evil'. Coincidence?

Features

Mars orbiter spots new crater that may be ExoMars's lost lander

Space

Mars orbiter spots new crater that may be ExoMars's lost lander

The lander may have turned off its thrusters too early, meaning it smacked into the ground at high speed with full fuel tanks - and may have exploded

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Space

Pluto may sport clouds of poisonous acid and flammable gases

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Space

Get ready for ESA's white-knuckle descent to the Red Planet

Comment

Space

ExoMars spacecraft splits in two to explore Mars surface and air

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Space

Uranus might have two dark moons we've never seen before

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