Briefing

Scientists have uncovered how exercise directly influences brain health in Alzheimer’s disease by pinpointing the exact brain cells affected. Using cutting-edge RNA sequencing and mouse models, researchers identified changes in specific cells like microglia and a novel type of astrocyte after exercise.

A protective sugar coating on brain blood vessels, once thought to be insignificant, turns out to play a vital role in preventing cognitive decline. Restoring this layer reversed damage and memory loss in aging brains, offering a fresh approach to treating neurodegenerative diseases.

Despite falling global mercury emissions, mercury levels in Arctic wildlife continue to rise. A new study reveals that ocean currents are delivering legacy mercury pollution from distant regions like China to the Arctic, where it accumulates in animals and ecosystems.

Data from NASA’s James Webb Space Telescope has revealed dozens of small galaxies that played a starring role in a cosmic makeover that transformed the early universe into the one we know today.

With this week’s expected arrival of a visiting crew delayed, science and maintenance work on board the International Space Station was lighter than usual for the Expedition 73 crew.

Celebrities William Shatner and Neil deGrasse Tyson lead the “Universe is Absurd” show, which is hosted by Future of Space.

Jeff Bezos’ Blue Origin has revealed the six people who will fly on the company’s 13th space tourism mission, though a launch date has not yet been announced.

On Episode 165 of This Week In Space, Rod Pyle and Tariq Malik talk with NASA astronaut Nick Hague, the first U.S. Space Force Guardian to launch to the International Space Station in that role.

The James Webb Space Telescope has notched another milestone, capturing a direct image of one of the coldest and oldest known exoplanets.

A ‘ghost plume’ identified deep in the mantle beneath Oman suggests there may be more heat flowing out of Earth’s core than previously thought