Astronomy

An AI search through decades-old spacecraft images reveals that Mercury may still be alive and kicking, geologically speaking.

The post Hundreds of Bright Streaks Suggest Mercury’s Still Active appeared first on Sky & Telescope.

A full moon is seen shining over NASA’s SLS (Space Launch System) and Orion spacecraft, atop the mobile launcher in the early hours of February 1, 2026.

John Martinis has already revolutionised quantum computing twice. Now, he is working on another radical rethink of the technology that could deliver machines with unrivalled capabilities

John Martinis has already revolutionised quantum computing twice. Now, he is working on another radical rethink of the technology that could deliver machines with unrivalled capabilities

Acquiring xAI could boost SpaceX’s plans to launch a one-million-strong satellite constellation to act as an orbital data center network

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Space activities are unlike any others. They interact not just with Earth, but with three interconnected environments: Earth, Earth’s orbit, and the Moon and deep space. On Earth, we aim to reduce the space sector’s environmental impacts while maximising the societal and environmental benefits of our missions. In orbit, we manage space debris and collision risks to maintain safe and secure operations. For the Moon and deep space, we are laying the foundations to minimise the impact of our missions on and around other celestial bodies.

Guided by our core values, ESA is committed to making its activities more sustainable, redefining how space activities are conceived, executed and shared with the world. Our objective is clear: to address the most pressing challenges and implement ambitious changes, both in our own practices and in close collaboration with our partners.

Looking ahead, in support of Strategy 2040, ESA is determined to lead through ambition, action and collaboration, building a future where space is not only a domain of opportunity but also a model of sustainability, responsibility and global unity.

SpaceX says it wants to deploy an astronomical number of data centres in orbit to supply power for artificial intelligence, but the proposal might not be entirely serious

SpaceX says it wants to deploy an astronomical number of data centres in orbit to supply power for artificial intelligence, but the proposal might not be entirely serious

Magnetism on the Moon has always been a bit confusing. Remote sensing probes have noted there is some magnetic signature, but far from the strong cocoon that surrounds Earth itself. Previous attempts to detect it in returned regolith samples blended together all of the rocks in those samples, leading to confusion about the source - whether they were caused by a strong inner dynamo in ages past, or by powerful asteroid impacts that magnetized the rocks they hit. A new study from Yibo Yang of Zhejiang University and Lin Xing of the Chinese Academy of Sciences, published recently in the journal Fundamental Research, shows that the right answer seems to be - a little of both.

The meaning of life has puzzled philosophers for millennia, but new research suggests it could be as simple as lending a helping hand

The meaning of life has puzzled philosophers for millennia, but new research suggests it could be as simple as lending a helping hand

NASA will review data gathered during a simulated launch of the Artemis II rocket before revealing a new date for its upcoming moon mission

Researchers mimicked the air-trapping tricks of diving bell spiders to create aluminum that stays afloat—even when punctured

Dozens of routinely updated CDC databases have gone quiet. Here’s what states and medical societies are doing to preserve U.S. public health

SpaceX CEO Elon Musk says he’s making space-based artificial intelligence the “immediate focus” of a newly expanded company that not only builds rockets and satellites, but also controls xAI’s generative-AI software and the X social-media platform. That’s the upshot of Musk's announcement that SpaceX has acquired xAI.

Arp 220 is a well-known pair of galaxies that are merging. New ALMA observations of polarized light reveal the complex and powerful magnetic fields that shape the process.

NASA engineers temporarily stopped pumping liquid hydrogen fuel into the Artemis II rocket because of an apparent leak

Ants rely on scent to recognise their comrades, and when they are exposed to common air pollutants, other members of their colony react as if they are enemies

Ants rely on scent to recognise their comrades, and when they are exposed to common air pollutants, other members of their colony react as if they are enemies

There’s no safe level of exposure to lead—but a small, strange study shows we’ve made incredible progress in recent decades