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A tide of debris is cluttering space, threatening our satellites and rockets.
Who knew Pluto had mountains, glaciers and a smoggy haze?
A planetary system similar to our own has been located.
A look back at some of our most popular articles.
A distant galaxy has a freak black hole at its centre.
A human-sized centrifuge could counteract muscle wasting and bone loss in space
Astrophysicists detect one of the brightest and most enigmatic objects in the Universe.
Plutonium powers New Horizons' study of Pluto but our stocks are running low.
Have we finally glimpsed the first stars in the Universe?
The Large Hadron Collider is a giant time machine for physicists.
Gases in the red planet's rocks could sustain Martian microbes.
Shifting gravitational forces create chaos for the solar system's oddest orbits.
Coronal mass ejections from the Sun can wreak havoc on Earth.
Lab Talk: When galaxies collide.
The most popular stories from our news blog
NASA's New Horizons spacecraft is closing in on Pluto.
A new technique for studying distant worlds.
Water probably gave Mars its rusty look.
Certainty is hard to come by in science.
Tests on mice don't bode well for travellers to Mars.
A selection of stories from our daily blog.
Scientists believe undiscovered planets exist on the edge of our Solar System.
The riddle of Mercury’s dark complexion is almost solved.
The most read articles from the Cosmos news blog over the past week.
The James Webb Space Telescope will be able to look further back in time than we have ever seen.
A microbe factory could halve a mission's load.