An artist’s impression of the predicted merger between our Milky Way (right) and the neighboring Andromeda galaxy (left). So which galaxy will dominate?
NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas; and A. Mellinger
Bigger galaxies tend to dominate the smaller, when the two collide. But the pending battle between our Milky Way and the Andromeda galaxy might be a much fairer fight than we previously thought.
An image by MeerKAT shows hydrogen gas in M83, a famous spiral galaxy.
A precursor to the Square Kilometre Array- the MeerKAT telescope - is being built right now and remarkable progress has been made in the last 12 months.
Here, an alien crew member, Saru on Star Trek: Discovery. We often rely on science fiction to guide our expectations of alien life. We can hope lessons about accepting beings very different from yourself can be extracted by the series end.
(Courtesy of CBS Studios)
Star Trek: Discovery explores our corner of the block -- just a fraction of the galaxy. Some stars are better candidates for intelligent alien life, and it may not be anything like we imagine.
Detecting cosmic ray particles: a water-Cherenkov detector seen against the night sky at the Pierre Auger Observatory in western Argentina.
Steven Saffi, University of Adelaide
Scientists say they now know that high energy cosmic ray particles that bombard Earth are coming from outside our galaxy. But the actual source still remains a mystery.
Lasers being shone from the European Southern Observatory’s Very Large Telescope in Chile.
These lasers help remove the twinkles in the night sky and help astronomers see stars clearer on Earth than ever before.
How exactly do the stars twinkle in the night sky? As it turns out, the answer is full of hot air... and cold air.
Mine’s a Star-opramen.
It's like one great big distillery up there.
In the beginning, the Universe expanded very, very fast.
What caused the Big Bang is still a mystery. And that's just one of the many unanswered questions, in spite of everything we do know about the birth of the Universe.
They’re back: Gamora (Zoe Saldana), Nebula (Karen Gillan), Peter Quill (Chris Pratt), Drax (Dave Bautista) and Rocket voice by Bradley Cooper).
Walt Disney/Marvel Studios
The Guardians of the Galaxy team are rocking the universe again in the latest volume of the science fiction blockbuster. But how does the science stand up to some number crunching?
New research shows the insects use the brightness of different stars to work out which direction to go.
Artist’s impression of a quasar shining through a galaxy’s ‘super halo’ of hydrogen gas.
A. Angelich (NRAO/AUI/NSF)
Astronomers are surprised by what they're finding out about galaxies that formed in the early days of our universe, now that sensitive telescopes allow direct observation, not the inference of old.
Untangling the history of the Milky Way.
Understanding how the billions of stars in our galaxy formed and evolved is the subject of a huge galactic archaeology project.
Mysterious Milky Way.
A new discovery can help determine where all the stars in the universe's galaxies actually come from.
The Milky Way as seen from Earth.
Astronomers are making new discoveries about our galaxy thanks to a more detailed map of the Milky Way.
Australians have gazed in wonder at the Milky Way since long before Captain Cook’s time.
Christian Reusch/Wikimedia Commons
What did Isaac Newton, Captain Cook and Eddie Mabo all have in common? Each, in their own way, looked to the heavens to make sense of the world, and the importance of their place in it.
Gaia’s first sky map.
The Gaia catalogue’s incredible precision is only possible due to accurate tracking of Gaia itself from the ground.
An artist’s impression of the galaxies found in the ‘Zone of Avoidance’ behind our Milky Way.
International Centre for Radio Astronomy Research
Something mysterious is pulling our Milky Way through space at a much faster rate than expected. So what could it be?
Except for a few blue foreground stars, the stars are part of the Milky Way’s nuclear star cluster, the most massive and densest star cluster in our galaxy.
NASA, ESA, and Hubble Heritage Team (STScI/AURA, Acknowledgment: T. Do, A.Ghez (UCLA), V. Bajaj (STScI)
Each fortnight I get the amazing opportunity to speak about my top stories in space on ABC Breakfast News TV but for those of you who hate early mornings I wanted to make sure you got to hear of these…
Can a galaxy (like NGC 3810 in this case) have a classical spiral structure and also be already dead?
ESA/Hubble and NASA
Extragalactic astrophysicists want to know how and why galaxies stop forming stars, change their shape and fade away. With help from citizen scientists, they're figuring it out.
CSIRO’s Compact Array telescope under the Milky Way.
Astronomers think they may have found evidence within our galaxy of some of the missing matter thought to make up our universe.
Elliptical galaxy SDSS J162702.56+432833.9 could be full of life.
A new model suggests that elliptical galaxies are more likely to be habitable than spiral galaxies like our own. Does that mean we're a freak event and elsewhere is teeming with life?