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  • A stream of hydrogen gas produced by astronomers in a computer simulation. Credit: MPIA (G. Stinson / AV Maccio)

    Stream of gas stretches for 2.6 million light-years

    The longest ever stream of hydrogen gas has been discovered acting as a bridge between galaxies 500 light years away.

  • An artist's impression of the white dwarf orbiting the pulsar. While both have a similar mass, the pulsar is much denser, hence its smaller size. Image credit: B. Saxton (NRAO/AUI/NSF)

    Coldest white dwarf found orbiting nearby neutron star

    A binary system of two dead stars has revealed the coldest, dimmest white dwarf discovered to date.

  • The two inner black holes emit jets from their accretion discs that twist around each other. The more distant third black hole has jets that shine straight out into space.
Credit: Roger Deane; NASA Goddard

    Trio of giant black holes at centre of distant galaxy

    At the centre of our Galaxy lives a monster. A giant black hole four million times the mass of our Sun is lurking, eagerly awaiting the next star or gas cloud to wander into its clutches. A supermassive black hole like this one is thought to reside in the centre of all galaxies, and astronomers have now discovered a galaxy […]

  • An artistic rendition of dust formation around a supernova explosion. Observations with the VLT in Chile show that this happens in two stages. Image credit: ESO/M. Kornmesser

    Galactic roles, a cosmic puzzle and a dusty answer

    Giant galaxies are the ones that catch the space enthusiast’s eye, with their spiral patterns or cigar-like blobs in images taken with large telescopes. But their more elusive and tiny cousins, the dwarf galaxies, played a major role in switching on the Universe, it turns out.

  • An artist's concept of how ATLAST may look as astronauts assemble it in space. Image credit: NASA/STScI.

    Monster telescope ATLAST planned for space

    An exciting new space telescope is on the drawing board that will dwarf anything previous observatory put into space – and it will be powerful enough to image planets orbiting nearby stars.

  • Five top targets in the Solar System

    The Moon may have been more active than thought. Photo: Paul Sutherland

    If you are the proud owner of a new telescope, you may be wondering what you can see through it. There is so much in the night sky that it can...


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