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Webb has done it again. New-found galaxy at the dawn of time is challenging what we know about the Universe
Webb sees galaxy as it existed just after the Big Bang
Lightyears explained, and why they're crucial to our understanding of the Universe
Using lightyears to measure distance in the Universe and how long it would take to travel one lightyear by foot, car, plane and rocket.
Does the Universe expand faster than light?
Does the Universe's expansion violate Albert Einstein’s theory of relativity, which says that the speed of light is an absolute limit?
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This weekend's Snow Moon could be the last full Moon before Artemis II astronauts get there. Here's what they'll see
Artemis II astronauts will get a perspective of the Moon never seen by human eyes
Comet 3I/ATLAS streaks across the sky in video captured by NASA's exoplanet-hunting spacecraft
NASA says scientists can use data to learn more about the comet's activity and rotation.
What astronauts eat in space
What do astronauts eat in space? How can science provide food for human spacefarers making a long journey to Mars?
10 amazing facts about the Apollo Moon landing missions
How did the Apollo astronauts eat, sleep and go to the toilet? Read our FAQs to find out how the Moon walkers carried out day-to-day activities in zero gravity.
To boldly go... The story of astronaut Alan Shepard, the first American in space
The story of Alan Shepard, the first American in space.
This icy moon is a key place to search for life. A NASA probe has measured how deep its hidden ocean stretches
Data could inform how habitable moon Europa really is
US flag from the Apollo mission that never flew will make its first trip to the Moon on Artemis II
NASA is sending 'legacy keepsakes' to the Moon with the Artemis II crew
This is one of the best weeks to observe the Moon in 2026. Here's our night-by-night beginner's guide
The Snow Moon – the second full Moon of the year – rises this weekend, but you don't need to wait until then to observe the Moon. 2026 is set to be an amazing year for observing the Moon, and this week is a great example of that. As the Moon approaches full Moon, it'll skip across the sky, night after night, meeting a few bright objects along the way. First up, we've got a close encounter between the Moon and the easiest star cluster to see with the naked eye. The we'll see a close encounter between the Moon and
Sky-Watcher's new budget telescope is a precision instrument for beginners. We got the chance to try it out
Webb's biggest dark matter map shows the Universe's 'invisible scaffolding' in stunning detail
Map builds on previous studies to produce a new view of dark matter's cosmic influence
All-in-one astro imaging software promises to make processing a breeze. We got our expert to try it out
ON1 Photo RAW 2025.2 enables you to edit and sort your shots in one streamlined space
Why Apollo 11 astronauts were put in quarantine after they came back from the Moon
David Darling looks at the period of quarantine the Apollo 11 crew were put under on their return to Earth.
How dark is your night sky? Here's how astronomers measure darkness around the world
A guide to the Bortle Scale for measuring sky darkness
Meet NASA's Space Launch System, the rocket taking the Artemis astronauts to the Moon
NASA’s newest rocket, the Saturn V-sized Space Launch System, will take human exploration beyond low-Earth orbit once more.
As the next full Moon approaches, we'll get to see it pass in front of a beautiful blue star cluster
Around 21:30 UT, the 68%-lit waxing gibbous Moon can be seen crossing the northern section of the Pleiades open cluster.
Artemis II astronauts enter quarantine. A milestone moment in the next crewed mission to the Moon
Another milestone in the first crewed mission to the Moon since Apollo
Spectacular timelapse video shows Earth and the Moon from space, captured by an astronaut on the ISS
Astronaut's video shows the beauty of our planet as seen from the ISS
Farewell, 3I/ATLAS. I've been observing the interstellar comet for months. Here's what I learned
Missions like Artemis could be preventing us from discovering the secrets of life on Earth, say scientists
The chances of alien life just got slimmer, according to new study looking at the dark Universe
Study looks at how likely it is for stars and planets to form in a universe with a certain amount of dark energy
Is there really water on Mars? If scientists keep discovering water on the Red Planet, where is it all?
A guide to the search for water on Mars.