Astronomy

From 7 to 10 October 2025, Europe and Africa took another important step toward deepening their cooperation in space. At the ESA Education Training and Learning Facility in ESEC-Galaxia, Belgium, young engineers from across both continents came together for the Space Systems Engineering Training Course, jointly supported by the European Space Agency (ESA) and the African Space Agency (AfSA).

Expectations are low for the UN climate conference in Belém, Brazil, but the host’s pragmatic approach could help make progress on implementation

Expectations are low for the UN climate conference in Belém, Brazil, but the host’s pragmatic approach could help make progress on implementation

In a world first, a bespoke gene-editing therapy benefited one child. Now researchers plan to launch a clinical trial of the approach

Astronomers have found that star-forming galaxies in the early universe were far messier than modern-day disk galaxies.

The post Early Galaxies Were Messy, New Study Finds appeared first on Sky & Telescope.

Sometimes space exploration doesn’t go as planned. But even in failure, engineers can learn, adapt, and try again. One of the best ways to do that is to share the learning, and allow others to reproduce the work that might not have succeeded, allowing them to try again. A group from MIT’s Space Enabled Research Group, part of its Media Lab, recently released a paper in Space Science Reviews that describes the design and testing results of a pair of passive sensors sent to the Moon on the ill-fated Rashid-1 rover.

Building a working quantum internet would require overcoming a host of technical challenges, but researchers who have built one of the most advanced quantum networks to date say they think it is possible

Building a working quantum internet would require overcoming a host of technical challenges, but researchers who have built one of the most advanced quantum networks to date say they think it is possible

A distant black hole has been caught releasing the brightest flare ever, which is the result of it ripping apart and devouring an enormous star

A distant black hole has been caught releasing the brightest flare ever, which is the result of it ripping apart and devouring an enormous star

Enamel does not naturally regenerate, which can lead to painful cavities, but a gel that harnesses some of the properties of saliva could restore the hard, shiny layer to teeth

Enamel does not naturally regenerate, which can lead to painful cavities, but a gel that harnesses some of the properties of saliva could restore the hard, shiny layer to teeth

With unprecedented detail, a team of astronomers led by MPE have imaged the youngest disks around new-born stars. Astronomers used to think that planet formation followed star formation. But these glowing, chaotic disks are hotter and heavier than expected, hinting that planets may start forming much earlier than previously thought.

An international team of astronomers using the combined powers of space-based and ground-based observatories, including the W.M. Keck Observatory and Subaru Telescope on Maunakea, Hawaiʻi Island, have discovered a brown dwarf companion orbiting a nearby red dwarf star, providing key insight into how stars and planets form.

Before a supernova finally explodes, its progenitor ejects massive amounts of gas into its surroundings. When the doomed star finally explodes, its blast wave slams into this material. This is one of a supernova's signatures, and researchers have figured out how to detect it.

The cosmic voids of the universe are empty of matter. But we all know there’s more to the universe than just matter.

Star formation has a lot of complex physics that feed into it. Classical models used something equivalent to a “collapse” of a cloud of gas by gravity, with a star being birthed in the middle. More modern understandings show a feature called a “streamer”, which funnels gas and dust to proto-stars from the surrounding disc of material. But our understanding of those streamers is still in its early stages, like the stars they are forming. So a new paper published in Astrophysical Journal Letters by Pablo Cortes of the National Radio Astronomy Observatory (NRAO) and his co-authors is a welcome addition to the literature - and it shows a unique feature of the process for the first time.

Alzheimer's-related cognitive decline could be slowed by taking as few as 3000 steps a day, possibly due to the effects of regular exercise on brain health

Alzheimer's-related cognitive decline could be slowed by taking as few as 3000 steps a day, possibly due to the effects of regular exercise on brain health

Modeling supermassive black holes is hard, but it's a bit easier if you use a non-singular model.