The Universe is continually expanding, and scientists measure its expansion rate, the Hubble Constant, using two main methods: electromagnetic methods (using light from stars, galaxies, or supernovae) ...

Researchers have been exploring different ways to improve memory, from mental training exercises to nutritional changes. A new study by University of California, Irvine (UCI) researchers found a ...

Cross sections of C3 rice (left) and C4 sorghum (right) shoots. Both grain crops evolved from a common ancestor, but sorghum evolved to photosynthesize more efficiently. Credit: Tina Schreier at the ...

In this idea, life’s first steps may have happened inside sticky gels attached to surfaces, similar in some ways to modern microbial biofilms. Biofilms are the thin layers of bacteria you see on rocks ...

The sicky theory of life’s origins.

Imagine a type of matter where particles are arranged in a neat crystal pattern but can flow without friction. This peculiar state is called a supersolid, requiring particles to share a common phase ...

Lucid dreams occur when a person is aware they are dreaming while still in the dream state. This phenomenon happens during REM sleep and has numerous potential applications, from solving physiological ...

The Siwaliks, part of the outer Himalayas, span Pakistan, India, Nepal, and Bhutan. Fossils found here reveal a rich diversity of mammals that lived between 18 million and 1 million years ago. These ...

Neurons and their branch extensions known as dendrites are featured within a mouse’s cerebral cortex. How does the brain encode new information, like job tasks or song lyrics? Scientists at the ...

Naïve CD8 T cells can change into different types of effector and memory CD8 T cells when the immune system responds to threats. These types help the body fight infections, respond to treatments, or ...

Muscle tissue from aged mice seven days after injury. Left: Aged mice with normal NDRG1 levels show slower regeneration with smaller muscle fibers. Right: Aged mice in which NDRG1 was recently blocked ...

Extremely precise measurements of the distance between the Earth and the Coma cluster of galaxies provide new evidence for the Universe’s faster-than-expected rate of expansion. (Photo courtesy ...