Jordana Cepelewicz

Staff Writer

Photo of lithium batteries
Abstractions blog

Nobel Awarded for Lithium-Ion Batteries and Portable Power

October 9, 2019

John Goodenough, M. Stanley Whittingham and Akira Yoshino shared the 2019 Nobel Prize in Chemistry for developing lithium-ion batteries, “the hidden workhorses of the mobile era.”

Climbing up the side of a high mountain peak.
Abstractions blog

Nobel Prize Awarded for Discoveries on How Cells Adapt to Oxygen

October 7, 2019

The 2019 Nobel Prize in Physiology or Medicine honored William Kaelin Jr., Peter Ratcliffe and Gregg Semenza for their work on elucidating how cells adjust to low oxygen levels.

An osprey flying low over a river holds a trout in its claws.
Abstractions blog

Your Brain Chooses What to Let You See

September 30, 2019

Beneath our awareness, the brain lets certain kinds of stimuli automatically capture our attention by lowering the priority of the rest.

The illustration shows ghostly hands partially obstructing a person’s sight and hearing.
neuroscience

To Pay Attention, the Brain Uses Filters, Not a Spotlight

September 24, 2019

A brain circuit that suppresses distracting sensory information holds important clues about attention and other cognitive processes.

3D illustration of a complex atomic structure.
Abstractions blog

Origin-of-Life Study Points to Chemical Chimeras, Not RNA

September 16, 2019

Origin-of-life researchers have usually studied the potential of pure starting materials, but messy mixtures of chemicals may kick-start life more effectively.

3D illustration of three human skulls, split into left and right halves and nested one inside the next.
evolution

Fossil DNA Reveals New Twists in Modern Human Origins

August 29, 2019

Modern humans and more ancient hominins interbred many times throughout Eurasia and Africa, and the genetic flow went both ways.

An illustration of a machine with two mechanical arms sorts cells by size into processing lines marked “Asymmetric Division” and “Symmetric Division.”
developmental biology

For Embryo’s Cells, Size Can Determine Fate

August 12, 2019

Modeling suggests that many embryonic cells commit to a developmental fate when they become too small to divide unevenly anymore.

Abstractions blog

In Brain’s Electrical Ripples, Markers for Memories Appear

August 6, 2019

Researchers found that elongating certain brain signals in rats improved their memory. The work revealed a new property to look out for in the hunt for “biomarkers” of learning.

evolution

Scientists Debate the Origin of Cell Types in the First Animals

July 17, 2019

Theories about how animals became multicellular are shifting as researchers find greater complexity in our single-celled ancestors.