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Observable universe contains ten times more galaxies than previously thought

13 October 2016 Astronomy Now

Astronomers using data from the NASA/ESA Hubble Space Telescope and other observatories have performed an accurate census of the number of galaxies in the universe. The researchers came to the surprising conclusion that the observable universe contains at least two trillion galaxies. The results also help solve an ancient astronomical paradox — why is the sky dark at night?

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AutoLens steps up for Euclid satellite’s 100,000 gravitational lens challenge

3 July 2016 Astronomy Now

Due for launch in 2020, ESA’s Euclid satellite will set astronomers a huge challenge: to analyse 100,000 strong gravitational lenses. The gravitational deflection of light from distant astronomical sources by interposing massive galaxies can create multiple images of the source that are not just visually stunning, but are also valuable tools for probing our universe.

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Astronomers release spectacular infrared survey of the distant universe

28 June 2016 Astronomy Now

Astronomers today (28 June) released spectacular new infrared images of the distant universe, providing the deepest view ever obtained over a large area of sky. The release of the Ultra-Deep Survey (UDS) represents the culmination of a project using the 3.8-metre United Kingdom Infrared Telescope (UKIRT) on Hawaii, building up more than 1,000 hours of exposure time.

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Using drones to keep tabs on light pollution

28 June 2016 Astronomy Now

Astronomers at Nottingham Trent University have developed a light, low cost system, deployable on a drone, that could help everyone monitor and control light pollution. The team, led by undergraduate student Ashley Fuller, present their work at the Royal Astronomical Society’s National Astronomy Meeting at the University of Nottingham.