Space
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Research
Cosmic bursts find all that missing matter
Mysterious explosions help solve a longstanding mystery.
Astronomers have used fast radio bursts to finally detect all of the missing “normal” matter in the vast space betwee...
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A 'cosmic ring of fire' of 11 billion years ago
Astronomers say rare galaxy will shake up a few theories.
Astronomers have observed a rare galaxy type as it existed 11 billion years ago, and this, they say, is likely to sha...
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Close encounters likely spawned stellar births
Astronomers reconsider the impact of Sagittarius.
New stars are likely to have been born in the Milky Way as a result of recurrent encounters with the Sagittarius dwar...
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Early disc galaxy puts theories in a spin
It’s huge and distant, so how did it form?
Astronomers have found a massive rotating disc galaxy that formed just 1.5 billion years after the Big Bang, when the...
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Astronomers see signs of planet birth
On VLT’s new images, the twist marks the spot.
Astronomers have reported what could be the first direct evidence of a baby planet coming into existence. Around t...
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A ‘decoder’ to gauge exoplanet climate
Colours may be clues to where we might live.
Astronomers from Cornell University in the US have developed what they call an environmental colour “decoder” to teas...
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That’s not lava, it’s mud
European scientists unravel a Martian mystery.
Lava-like flows on Mars are more likely caused by mud than lava, according to a new study. A European team used th...
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Conversation
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...
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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...
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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...
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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...
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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...