Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people

— Carl Sagan

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Updated: 2 hours 52 min ago

Realism of OpenAI’s Sora video generator raises security concerns

Fri, 02/16/2024 - 7:30pm
The latest AI model capable of converting text into video is attracting praise from some AI researchers, while also raising concerns about the risks of video deepfakes during global elections in 2024
Categories: Astronomy

A container ship just tested a system to capture its own CO2 emissions

Fri, 02/16/2024 - 4:00pm
Shipping companies are experimenting with onboard carbon capture systems, but they face difficult trade-offs on energy and space for regular cargo
Categories: Astronomy

Super-thickeners made from starch reduce calories and carbs in food

Fri, 02/16/2024 - 2:00pm
Assembling starch granules into 3D shapes could achieve the same thickening effect in foods with up to 50 per cent fewer granules, reducing the calories and carbohydrates without sacrificing texture
Categories: Astronomy

Carbon dioxide gas spotted in atmosphere of Jupiter’s moon Callisto

Fri, 02/16/2024 - 11:00am
Carbon dioxide gas found throughout the atmosphere of Callisto hints it has a complex carbon cycle – akin to the one which on Earth helps to sustain life
Categories: Astronomy

Genetically modified banana approved by regulators for first time

Fri, 02/16/2024 - 10:42am
Regulators in Australia and New Zealand have given the green light for farmers to grow a genetically modified banana resistant to a devastating fungal disease spreading worldwide
Categories: Astronomy

Chemical cocktail could restore sight by regenerating optic nerves

Fri, 02/16/2024 - 9:00am
The optic nerve has been partly regenerated in mice, raising hopes for treating blindness caused by conditions such as glaucoma
Categories: Astronomy

Polar bears appear to be ageing faster as the Arctic gets warmer

Fri, 02/16/2024 - 7:00am
Markers of biological ageing in polar bear tissue samples reveal that stress associated with climate change appears to be taking a toll
Categories: Astronomy

Rising greenhouse gases have cooling effect on Antarctica’s atmosphere

Fri, 02/16/2024 - 3:00am
A "negative greenhouse effect" means rising concentrations of CO2 and methane have slightly cooled parts of Antarctica’s upper atmosphere, but that could change as the air becomes more humid
Categories: Astronomy

Rising greenhouse gases actually cool Antarctica – because it's so dry

Fri, 02/16/2024 - 3:00am
A "negative greenhouse effect" means rising concentrations of CO2 and methane have slightly cooled parts of Antarctica’s upper atmosphere, but that could change as the air becomes more humid
Categories: Astronomy

Nanobot uses a DNA clutch to engage its engine

Fri, 02/16/2024 - 1:00am
A tiny robot with a clutch that mimics similar mechanisms found in microorganisms could be used to trigger the internal workings of a cell
Categories: Astronomy

Lasers smaller than a human hair emit doughnut-shaped light

Thu, 02/15/2024 - 4:00pm
Incredibly thin, hollow wires made from gallium and nitrogen can produce laser beams that are hollow with a ring-shaped cross-section, and that could be used to create optical fibres out of thin air
Categories: Astronomy

Russia’s space weapon: Is it nuclear and does it pose a threat?

Thu, 02/15/2024 - 2:30pm
US officials have warned of a new international security threat – a mysterious Russian space weapon that may possess nuclear capabilities. Here’s what you need to know
Categories: Astronomy

Reforestation initiatives in Africa may damage grassland and savannah

Thu, 02/15/2024 - 2:00pm
Tree-planting projects in Africa may damage grasslands and savannahs by introducing too much shade. By preventing smaller plants from photosynthesising, this would have knock-on effects for the rest of the ecosystem
Categories: Astronomy

Abortion medication is as safe over telehealth as in a doctor’s office

Thu, 02/15/2024 - 11:00am
The largest study of telehealth abortions to date has found that the medications are just as safe and effective if they are obtained via online services instead of through a face-to-face doctor’s appointment
Categories: Astronomy

The right microbes on plant roots can make your tea taste better

Thu, 02/15/2024 - 11:00am
Changing the microbial community on the roots of tea plants can improve the flavour and nutritional content of the leaves, leading to a better-tasting cuppa
Categories: Astronomy

Inside the Brooklyn start-up making clean jet fuel with captured CO2

Thu, 02/15/2024 - 7:00am
Rethinking a century-old chemical reaction could jump-start the production of cleaner jet fuel made from captured carbon dioxide and clean electricity
Categories: Astronomy

When does a bone become a fossil?

Thu, 02/15/2024 - 6:00am
As organic material in a bone gets replaced by minerals over time, it becomes a fossil. But that can happen at different rates even within the same individual
Categories: Astronomy

Microdosing LSD increases the complexity of your brain signals

Thu, 02/15/2024 - 2:00am
A measure of consciousness called neural complexity increases even with small doses of LSD, but we still don't know the potential risks of microdosing psychedelic drugs
Categories: Astronomy

Poison frogs tap-dance to rouse prey and make them easier to catch

Thu, 02/15/2024 - 1:00am
Different species of poison frogs tap their toes when feeding to create vibrations that cause flies to move closer to them
Categories: Astronomy

School uniforms may prevent children from getting enough exercise

Wed, 02/14/2024 - 7:01pm
Children who live in countries where school uniforms are the norm appear to be less active than those who don't, possibly because the clothing restricts their movement
Categories: Astronomy