Our astronomers are part of an international team behind the successful first research flight of an innovative balloon-borne telescope that will investigate the mystery of dark matter.
The Superpressure Balloon-borne Imaging Telescope (SuperBIT) has been flown to the edge of space by a helium balloon the size of a football stadium.
SuperBIT has already taken its first images on this flight, showing the “Tarantula Nebula” - a neighbourhood of the Large Magellanic Cloud where new stars are being born, and the collision between the “Antennae galaxies” NGC 4038 and NGC 4039.
The science goal for this first flight is to measure the properties of dark matter, a heavy but invisible type of material. Dark matter is all around us but poorly understood.
Although dark matter is invisible, SuperBIT will map where it is by the way it bends passing rays of light, a technique known as gravitational lensing.
The telescope will test whether dark matter particles can bounce off each other, by mapping the dark matter around clusters of galaxies that happen to be colliding with their neighbours.
Various theories about dark matter suggest that, during a collision, some dark matter might either slow down, spread out, or get chipped off.
The researchers say that if they can map dark matter leaving the collision, they could finally start to learn what it’s made from.
SuperBIT launched from Wānaka, New Zealand (Aotearoa).
Carried by seasonally stable winds, it will circumnavigate the southern hemisphere several times on its three-month flight - imaging the sky all night, then using solar panels to recharge its batteries during the day.
Flying at 33.5km altitude, above 99.5 per cent of the Earth’s atmosphere, SuperBIT takes high-resolution images like those of the Hubble Space Telescope, but with a wider field of view.
SuperBIT cost about £4.1million/$5million USD, almost 1,000 times less than an equivalent satellite.
Helium is cheaper than rocket fuel and the ability of SuperBIT to return to Earth by parachute meant the team could tweak its design over several test flights and can continue to upgrade the telescope.
Durham’s lead researcher on SuperBIT is Professor Richard Massey, in our Department of Physics. Richard is a member of Durham’s Institute for Computational Cosmology and Centre for Extragalactic Astronomy.
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SuperBIT is a collaboration between Durham University the University of Toronto, Canada, Princeton University, USA, and NASA. You can follow SuperBIT’s flight status on NASA’s website here.
Funding for the SuperBIT mission has been provided by NASA, the Canadian Space Agency, and the Royal Society.
Main image: A false-colour image taken by the SuperBIT telescope soon after launch in visible and ultra-violet light of the "Tarantula Nebula” - a neighbourhood of the Large Magellanic Cloud where new stars are being born. Credit: SuperBIT.
SuperBIT's international science team is initially controlling the telescope from Wānaka airport, New Zealand, but will return to different time zones to monitor it for the next 100 days. Credit: SuperBIT science team.
Professor Richard Massey at a pre-launch inspection of SuperBIT’s data “download" capsules. Credit: Richard Massey.
SuperBIT was flown to the edge of space by a helium-filled NASA scientific balloon the size of a football stadium. Credit: NASA/Bill Rodman.
SuperBIT flies at 33.5km altitude, above 99.5 per cent of the Earth’s atmosphere. Credit: NASA/Bill Rodman
SuperBIT has taken its first research flight image showing the Tarantula Nebula - a neighbourhood of the Large Magellanic Cloud. Credit: SuperBIT.
A false-colour image taken by the SuperBIT telescope. As they collide, the “Antennae galaxies” NGC 4038 and NGC 4039 are ripping strips off each other. Credit: SuperBIT.