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Have we got our Galaxy completely wrong? Scientists just worked out it's much wider than they thought
Dust-cloud ‘light echoes’ allowed astronomers to pinpoint the distances to our Galaxy’s spiral arms
We’ll soon see the flash when two alien planets collide – and it'll dramatically transform our understanding of the Universe
The glowing aftermath of giant impacts
may reveal how rocky worlds take shape
Hubble observes mysterious spokes in Saturn's rings
The mystery of the features seen in Saturn's icy rings deepens.
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New technology is helping us look for alien intelligence in distant galaxies
A SETI study looking for narrowband signals with a radio telescope is the most sensitive search for intelligence beyond our own Galaxy.
We're getting a Christmas Eve supermoon this year. All you need to know about the December 2026 celestial spectacle
A Christmas Eve supermoon will rise on the evening of December 24, 2026, marking one of the biggest, brightest full Moons of the year
Best binocular targets to see tonight | Best things to see in the night sky with binoculars tonight
With binoculars you can see so much more in the night sky. Take our deep-sky tour and find out.
Your guide to the best planets visible in September 2026 and how to see them
Our stargazer's guide to the best planets to see in September
Planet Neptune is at its best this month. Here's how to see it
How to see Neptune at opposition in September 2026, including key dates and best observing tips for viewing it with your telescope.
Something weird's going on at Saturn. Hubble has spotted a 10-sided geometric formation in the planet's clouds
The Hubble Space Telescope has given astronomers a view of a 10-sided decagon feature in the clouds at Saturn's south pole.
Europe's BepiColombo spacecraft begins its arrival at Mercury today – and you can watch the whole thing live online
The BepiColombo mission begins its Mercury Arrival Phase on 3 September 2026
See the crescent Moon pass in front of the beautiful Beehive star cluster, 8 September 2026
How to see the lunar occultation of the Beehive Cluster, M44 in September 2026
Why do we keep putting dark matter detectors deep underground?
A sensitive question: why dark matter detectors have to live deep beneath mountains
What if we never find dark matter? Why the hunt for the invisible universe is testing the limits of known physics
The dark matter hunt is testing the limits of known physics. What happens if it fails?
A strange, dark object is warping the Universe. Scientists still don’t know what it is
The lowest-mass dark object ever found in the Universe, discovered by using a global network of humanity's most powerful telescopes.
We've spent billions searching for dark matter and still haven't found it. Why are scientists obsessed with finding something they can't see?
If dark matter is invisible and can't be detected, why are scientists spending so much time and money searching for it?
Dark matter | 8 questions answered
Questions about dark matter, including what it is, what it does, how we know it's there and how scientists look for it
Have we finally found dark matter? A single blip deep underground just got physicists very excited...
A mile underground, the LUX-ZEPLIN experiment is hunting for dark matter
Lunacy! This philosopher says the new Space Race to conquer the Moon is completely flawed. Here's why
Is human spaceflight a waste of money and resources?
Is time travel really possible? This is what the science says
Can we only travel forward in time, or is the reverse at least theoretically possible?
They say we're made of star stuff, but where does star stuff come from?
How did everything come from the deaths of stars?
The 2026 Corn Moon is also the Harvest Moon for the year. Here's how to see it
The Corn Moon rises on 26 September 2026. Find out why it's also the Harvest Moon and how to see it at its best.
Next full Moon 2026 calendar dates
Find out when the next full Moon is visible and full Moon names for 2026.
We may be about to see an asteroid-mining gold rush. But here's why it could be a very bad idea
We examine the scramble to harvest metals from asteroids – and why we should think twice about it
Want to see a live spacewalk? Two astronauts are about to step outside of the Space Station. Here's how to watch live now
Watch live as astronauts Sophie Adenot and Jessica Meir perform a spacewalk on the outside of the International Space Station.
