star-forming galaxies – Astronomy Now

Hubble captures a barred spiral galaxy aglow with blazing stellar nurseries

9 October 2020 Astronomy Now

The Hubble Space Telescope, working with the ALMA radio observatory to characterize galactic environments conducive to star formation, captures a prime example in splendid detail.

Hubble catalogues star-forming regions in nearby galaxies

19 May 2018 Astronomy Now

To learn more about the processes behind star formation, the Hubble Space Telescope has examined 50 relatively nearby galaxies to compile the most comprehensive ultraviolet-light look at active star-birth regions.

Hubble’s compact galaxy with big-time star formation

16 October 2017 Astronomy Now

As far as galaxies are concerned, size can be deceptive. Some of the largest galaxies in the Universe are dormant, while some dwarf galaxies, such as ESO 553-46 imaged here by the NASA/ESA Hubble Space Telescope, can produce stars at a hair-raising rate.

Using oxygen as a tracer of galactic evolution

7 October 2016 Astronomy Now

A new study comprised of 7,000 galaxies casts light on how young, hot stars ionise oxygen in the early universe and the effects on the evolution of galaxies through time. The study presents the first measurements of the changing strengths of oxygen emission lines from the present day and back to 12.5 billion years ago.

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.