Scientists have cast doubt on a major part of the case for the Moon having once held abundant water.

After its near three-year, deep-space hibernation, the comet-chasing Rosetta probe begins testing its science payload.

BBC Weather's Carol Kirkwood looks at what causes the Northern Lights and tries to see them in the UK.

The risk to future lunar explorers is significant but manageable, provided we build strong enough spacesuits and moon bases
    

Touring the Milky Way now is as easy as clicking a button with NASA's new zoomable, 360-degree mosaic presented Thursday at the TEDActive 2014 Conference in Vancouver, Canada.

Thick, steamy atmospheres full of mineral vapours would reveal young planets that have just suffered huge collisions like the ones that helped make Earth
    

The discovery of primordial ripples in space-time is exciting. But does it really herald a new era for cosmology?
    

Need a giant IQ to understand the announcement about gravitational waves? Nonsense. Our video explains the basics using nothing but everyday objects
    

The first direct signs of a cosmic growth spurt that set space-time rippling means that we may live in just one of an infinite number of universes
    

Scientists, using cameras aboard NASA's Lunar Reconnaissance Orbiter (LRO), have created the largest high resolution mosaic of our moon’s north polar region. The six-and-a-half feet (two-meters)-per-pixel images cover an area equal to more than one-quarter of the United States.

Scientists believe they have detected liquid waves on Saturn’s moon Titan – the first to be observed on the surface of another world.

Tom Feilden, Stephen Hawking and Neil Turok discuss new evidence that scientists claim supports a Big Bang Theory for the origin of the Universe.

The largest census of dust in local galaxies has been completed using data from ESA's Herschel space observatory, providing a huge legacy to the scientific community.

This visualisation of eddies in cosmic background radiation gives a glimpse into the moments after the big bang
    

In celebration of the 24th anniversary of the launch of NASA's Hubble Space Telescope, astronomers have captured infrared-light images of a churning region of star birth 6,400 light-years away.

The first clear detection of primordial gravitational waves allows us to peer back further than we thought possible - and could unlock many cosmic secrets
    

The cosmic marker that's caused such a stir

Scientists say they have found a signal left in the sky by the super-rapid expansion of space that occurred just fractions of a second after the Big Bang.

To celebrate its 24th year in orbit, the NASA/ESA Hubble Space Telescope has released a beautiful new image of part of NGC 2174, also known as the Monkey Head Nebula. This colourful region is filled with young stars embedded within bright wisps of cosmic gas and dust.

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This colorful Hubble Space Telescope mosaic of a small portion of the Monkey Head Nebula unveils a collection of carved knots of gas and dust silhouetted against glowing gas. The cloud is sculpted by ultraviolet light eating into the cool hydrogen gas. As the interstellar dust particles are warmed from the radiation from the stars in the center of the nebula, they heat up and begin to glow at infrared wavelengths, as captured by Hubble. The space photo superficially resembles the "The Great Wave" print by 19th century Japanese artist Katsushika Hokusai.