- February 21, 2025
Mini-brains have been fused to resemble that of a 40-day-old fetus
Brain organoids derived from human embryonic stem cells being grown in the lab ARTHUR CHIEN/SCIENCE PHOTO LIBRARY Human “mini-brains” that
Asteroid 2024 YR4: Odds of collision with Earth in 2032 have reached new high
An artist’s impression of what asteroid 2024 YR4 could look like as it approaches Earth in December 2032 NASA NASA
Earth wouldn’t have ice caps without eroding rocks and quiet volcanoes
Antarctic ice on 1 Jan 2024 NASA’s Scientific Visualization Studio Earth’s climate isn’t easy to cool down – especially if
Waste surveillance at just 20 airports could spot the next pandemic
A network of airports like Hong Kong International Airport could effectively detect disease outbreaks Yuen Man Cheung / Alamy A
Astronomers have spotted the largest known object in the universe
Artist’s illustration of the large-scale structure of the universe Science Photo Library/Alamy Astronomers have found the largest known structure in
Cuddling koalas show unexpected sociable side in surprising video
Koalas are usually regarded as solitary animals, but new footage is revealing a more gregarious side. Darcy Watchorn at Deakin University,
Salamanders fill their toes with blood to release sticky grip
The translucent toes of a wandering salamander William P. Goldenberg How salamanders manage to move around on uneven, vertical tree
The best new sci-fi this month featuring a TJ Klune thriller and new Adrian Tchaikovsky
A dark moon is the location for Adrian Tchaikovsky’s new sci-fi novel Shroud Laperruque / Alamy Humanoid mosquitoes, alien contact
Surge in ocean heat is a sign climate change is accelerating
High sea temperatures contributed to stormy weather in California in late 2023 Kevin Carter/Getty Images The surge in ocean temperatures
Setting fire to a million acres of California could cut smoke by half
Firefighters in California during a prescribed burn San Francisco Chronicle via Getty You can fight fire with fire, even in