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An infant gas giant has been spotted, hatching from a cloud.
Apollo veteran Buzz Aldrin is a Mars mission enthusiast.
A new formula seeks to define a planet – and Pluto doesn't make the cut.
Astronomers glimpse a galactic ghost
But what happens when the honeymoon is over?
Is the search for intelligent life elsewhere in the cosmos worth the effort?
Microbes in Chile’s Atacama Desert might hold clues about life on Mars.
Astronomers discover why the biggest galaxies keep getting bigger.
An interview with the astrophysicist superstar.
The space probe heads to a more distant Kuiper Belt Object.
Re-analysed Moon rocks tell the story of a fiery youth.
The New York-based cosmologist is convinced the Universe is teeming with the life.
What causes a star to zoom across space and explode?
How do you detect dark energy when we don't know what it is?
When is putting human life at risk the right thing to do?
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?
Gases in the red planet's rocks could sustain Martian microbes.