Space launches are changing the chemistry of Earth’s atmosphere, studies warn. Here’s what can be done

Look up on a clear night and you’ll see the streaks of our new space age. What you don’t see is the growing fallout for the atmosphere that keeps us alive.

A wave of satellite launches and reentries is changing the chemistry and physics of the middle and upper atmosphere.

Studies warn of ozone depletion, stratospheric heating and new metal aerosols from burning spacecraft. The pace is accelerating fast and unless we redesign how we use and retire satellites, we risk swapping one environmental problem (congestion in Earth orbit from too many spacecraft) for another (an atmosphere seeded with rocket soot and satellite ash).

The problem is that most satellites are de-orbited when they reach the end of their lives...

Read More

AAOS: GLP-1 receptor agonist use increases five-year risk for osteoporosis

AAOS: GLP-1 receptor agonist use increases five-year risk for osteoporosis

Treatment with glucagon-like peptide-1 receptor agonists (GLP-1 RAs) for type 2 diabetes and obesity is independently associated with a significantly increased five-year risk for osteoporosis, gout, and osteomalacia compared with nonuse, according to a study presented at the annual meeting of the American Academy of Orthopaedic Surgeons, held from March 2 to 6 in New Orleans.

Muaaz Wajahath, from the Michigan State University College of Human Medicine in East Lansing, and colleagues evaluated the five-year risk for osteoporosis, gout, and osteomalacia in adults with both type 2 diabetes and obesity treated with GLP-1 RAs (semaglutide, liraglutide, dulaglutide, or exenatide) compared with matched controls (73,483 per group).

The researchers found that at five years, patients expo...

Read More

Your clothes may become smarter than you

Your clothes may become smarter than you
Graphical abstract. Credit: ACS Omega (2025). DOI: 10.1021/acsomega.5c08488

You’re probably used to the sight of smartwatches on people’s wrists. But what about smart clothes? Researchers at the University of Georgia are exploring how the clothes people wear can potentially track and protect their health. Smart textiles are fabrics that can monitor the body’s vitals and movement in real time. They’re flexible and lightweight, making them more comfortable to wear while moving.

The present publication focuses on MXenes, a class of two-dimensional, microscopic materials made from metals that can be coated or printed onto fabrics...

Read More

Scientists successfully harvest chickpeas from ‘moon dirt’

As the U.S. plans to return to the moon with the upcoming Artemis II mission, a question endures: What will future lunar explorers eat? According to new research from The University of Texas at Austin, the answer might be chickpeas.

Scientists have successfully grown and harvested chickpeas using simulated “moon dirt,” the first instance of this crop produced in this medium. The research, which was conducted in collaboration with Texas A&M University, is described in a paper published in the journal Scientific Reports.

Sara Santos, the principal investigator of the project, said that the work is a giant leap in understanding what it will take to grow food on the lunar surface.

“The research is about understanding the viability of growing crops on the moon,” said Santos, who i...

Read More