Why astronomy matters in times of crisis
The thoughts of Australia’s first Astronomer-at-Large.
In an international emergency like the present one, you might expect the science of the stars to be the last thing on...
Regular rhythms among pulsating stars
Astronomers learn more about delta Scutis.
Astronomers have detected regular pulsations in a class of intermediate-sized stars known as delta Scutis that has un...
Bending the bridge between galaxy clusters
Telescopes capture the distant action in Abell 2384.
Astronomers have found a bridge of gas extending over three million light-years from two galaxy clusters in the syste...
Brines on Mars not habitable, study says
They are common, but not ‘special’.
Liquid brines on Mars may be more common and longer lasting than previously thought, but their properties and tempera...
This X is more like two boomerangs
MeerKAT explains a distant galaxy.
Many galaxies have enormous twin jets of radio waves extending into intergalactic space. Normally these go in opposit...
Lucky imaging creates quite an image
Here’s Jupiter in all its infrared glory.
Researchers using the Gemini North telescope in Hawaii and a technique known as “lucky imaging" have collected some o...
Some clues to Ryugu’s odd colours
Researchers suggest it was a trip to the Sun.
When Japan’s Hayabusa2 probe landed on Ryugu in February last year, it provided the opportunity not only to collect a...
Astronomers find closest black hole to Earth
Triple system sometimes visible to the naked eye.
Astronomers have discovered a black hole just 1000 light-years from Earth – closer to our Solar System than any found...
Scientists report lunar carbon emissions
And that raises questions about the Moon’s past.
Japanese scientists have reported observing carbon ions persistently emitting from the lunar surface. Given that t...
Sun is ‘less active’ than similar stars
Solar census compares 369 candidates.
The Sun is less magnetically active and shows less variability in its brightness than similar stars in the galaxy, sc...
15 platters that matter
Rare images of planet-forming discs.
Astronomers have captured 15 new images of the inner rims of planet-forming discs hundreds of light-years away that s...
Hubble captures ATLAS disintegrating
It’s the sharpest view yet of what might have been.
The NASA/ESA Hubble Space Telescope isn’t resting on its laurels. While space watchers were preparing its 30th birthd...