Clinical trials have shown that six-monthly injections of lenacapavir are almost 100 percent protective against becoming infected with HIV. But big questions remain over the drug’s affordability.
Using a neural network trained with simulations of supermassive black holes, astronomers have found that the one at the center of the Milky Way, Sagittarius A*, likely rotates at maximum speed.
Anna’s hummingbirds have evolved to have longer, larger beaks to access backyard feeders in urban areas. It could be a step toward becoming a “commensal” species that lives alongside humans, like pigeons.
Galactic bones, filaments of radio-wave-emitting particles, run through our galaxy, and one of them has a fracture. New analysis suggests collision with a neutron star may have caused it.
On Earth there is no record of Niallia tiangongensis, a bacterium found aboard the Tiangong station that appears to be well adapted to conditions there.
New data from the James Webb Space Telescope suggests a planet in a faraway solar system was consumed by a star by hurling itself into it.
A new experiment suggests that the thalamus plays a key role in humans becoming consciously aware of stimuli their brain receives.
Astronomers using the James Webb Space Telescope confirmed the planet K2-18b has traces of dimethyl sulfide, a potential biosignature of marine microorganisms.
If future Mars colonizers want to survive without pressure suits, they’ll need to generate a denser atmosphere. One way to achieve this could be to bombard the Red Planet with water-rich asteroids.
On March 14, skywatchers in the Americas will be able to see the first of 2025’s two total lunar eclipses.
