Behold, directly overhead, a certain strange star was suddenly seen...
Amazed, and as if astonished and stupefied, I stood still.

— Tycho Brahe

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Updated: 1 hour 23 min ago

How government use of AI could hurt democracy

Fri, 07/11/2025 - 6:00pm
Countries are eager to use AI to automate some government processes, but this risks eroding citizens’ trust and feelings of democratic control – because AI mistakes can ruin their lives
Categories: Astronomy

We may have finally solved an ultra-high-energy cosmic ray puzzle

Fri, 07/11/2025 - 4:30pm
The IceCube neutrino detector has allowed researchers to resolve a debate about what types of particles make up ultra-high-energy cosmic rays – but much remains unknown about these rare events
Categories: Astronomy

Artificial cooling 'urgent' for Great Barrier Reef after warming spike

Fri, 07/11/2025 - 9:00am
A drop in shipping emissions has caused a surge in warming at the Great Barrier Reef, fuelling calls for drastic actions such as marine cloud brightening to lower the risk of coral bleaching
Categories: Astronomy

Climate could warm another 0.5°C if we fail to capture far more CO2

Fri, 07/11/2025 - 7:00am
Models suggest that meeting climate targets will be virtually impossible without steep emissions cuts paired with a huge expansion of carbon management technologies
Categories: Astronomy

Trees on city streets cope with drought by drinking from leaky pipes

Fri, 07/11/2025 - 7:00am
Urban trees lining streets fare better in dry spells than those in parks – now it seems that leaky water pipes are the reason for their endurance
Categories: Astronomy

Hay fever relief could come in the form of a nasal 'molecular shield'

Fri, 07/11/2025 - 1:00am
Mice experienced far fewer hay fever symptoms when a pollen-blocking antibody was applied within their nose
Categories: Astronomy

Why bizarre Cold War hoverboats are making a comeback

Thu, 07/10/2025 - 5:56pm
Sea-skimming crafts – which fly just above the water – were once considered Cold War relics of a failed Soviet experiment. Now, China and the US are resurrecting the technology as a possible Pacific conflict looms
Categories: Astronomy

Fatal genetic disorder treated by replacing the brain's immune cells

Thu, 07/10/2025 - 3:00pm
Microglia replacement therapy helps treat people with a rare genetic condition called ALSP, suggesting the approach could also work for other neurological disorders like Alzheimer’s
Categories: Astronomy

Inhaled insulin may free children with type 1 diabetes from injections

Thu, 07/10/2025 - 1:00pm
Inhaled insulin is effective for controlling blood sugar levels in children with diabetes, providing them with a faster-acting, needle-free option to manage their condition
Categories: Astronomy

Astronomers found a completely new type of plasma wave near Jupiter

Thu, 07/10/2025 - 12:00pm
Observations from NASA’s Juno spacecraft reveal that Jupiter’s strong magnetic field and the unique properties of its plasma can produce a truly novel kind of extraterrestrial wave near its poles
Categories: Astronomy

Peculiar plant could help us reconstruct ancient Earth’s climate

Thu, 07/10/2025 - 11:00am
Something strange happens to water as it moves through the stems of horsetail plants – and this unique process provides valuable clues for understanding past and present ecosystems
Categories: Astronomy

Interstellar visitor 3I/ATLAS might be the oldest comet ever seen

Thu, 07/10/2025 - 9:33am
Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion years old, almost twice the age of our sun
Categories: Astronomy

Surgical robots take step towards fully autonomous operations

Wed, 07/09/2025 - 3:00pm
An AI system trained on videos of operations successfully guided a robot to carry out gall bladder surgery on a dead pig, with minimal human assistance
Categories: Astronomy

Stunningly intimate octopus image wins aquatic photography prize

Wed, 07/09/2025 - 2:00pm
Kat Zhou has won the Aquatic Life category in the 2025 BigPicture Natural World Photography Competition, while a shot of a death-defying leap by a lemur took the top prize
Categories: Astronomy

Slay the new slang: check out a guide to social media’s baffling lingo

Wed, 07/09/2025 - 2:00pm
Language is evolving rapidly in a world of social media. Our millennial reviewer finds Adam Aleksic's Algospeak to be a much-needed helping hand
Categories: Astronomy

The cosmos is vast, so how do we measure it?

Wed, 07/09/2025 - 2:00pm
The awe-inspiring distances of the cosmos are hard to visualise, so how can we be certain we are measuring them correctly? Chanda Prescod-Weinstein explains
Categories: Astronomy

Is this the raciest conference invite ever?

Wed, 07/09/2025 - 2:00pm
Feedback has been invited to an event next year in Shaoxing, China. It's an academic conference promising "revolutionary thinkers who are redefining human intimacy through cutting-edge robotics and AI"
Categories: Astronomy

Plans to genetically screen newborns for rare diseases are problematic

Wed, 07/09/2025 - 2:00pm
The UK's health secretary has announced a 10-year plan to check newborns for a huge range of rare conditions. There are major medical and ethical issues with this, argues neurologist Suzanne O'Sullivan
Categories: Astronomy

Provocative new book says we must persuade people to have more babies

Wed, 07/09/2025 - 2:00pm
The population is set to plummet and we don't know how to stop it, warn Dean Spears and Michael Geruso in their new book, After the Spike
Categories: Astronomy

Will we ever feel comfortable with AIs taking on important tasks?

Wed, 07/09/2025 - 2:00pm
An example from the history of mathematics shows how views on the trustworthiness of artificial intelligence can quickly start to change
Categories: Astronomy