Uncategorized
- Life
‘Wild Souls’ explores what we owe animals in a human-dominated world
The new book Wild Souls explores the ethical dilemmas of saving Earth’s endangered animals.
- Paleontology
3.42-billion-year-old fossil threads may be the oldest known archaea microbes
The structure and chemistry of these ancient cell-like fossils may hint where Earth’s early inhabitants evolved and how they got their energy.
-
-
A century of exploring the endless final frontier
Editor in chief Nancy Shute discusses a century of astronomy and scientists' search for worlds beyond our own
- Physics
With Steven Weinberg’s death, physics loses a titan
The Nobel laureate advanced the theory of particles and forces, and wrote insightfully for a wider public.
- Health & Medicine
What experts know so far about COVID-19 boosters for immunocompromised people
Some immunocompromised people remain at risk for severe COVID-19 despite being vaccinated. Studies hint that an additional vaccine dose might help.
- Space
How do scientists calculate the age of a star?
There are a few different methods to determine the age of a star, but none are perfect.
- Anthropology
A partial skeleton reveals the world’s oldest known shark attack
An ancient shark bite victim died quickly, before his body was recovered and buried, a new study finds.
- Planetary Science
Marsquakes reveal the Red Planet boasts a liquid core half its diameter
Analyses of seismic waves picked up by NASA’s InSight lander shed new light on the planet’s core and give clues to the thickness of the crust.
- Paleontology
Pterosaurs may have been able to fly as soon as they hatched
A fossil analysis shows the flying reptile hatchlings had a stronger bone crucial for lift-off that adults and shorter, broader wings for agility.
- Health & Medicine
The coronavirus cuts cells’ hairlike cilia, which may help it invade the lungs
Images show that the coronavirus clears the respiratory tract of hairlike structures called cilia, which keep foreign objects out of the lungs.
- Planetary Science
NASA’s Perseverance Mars rover has begun its first science campaign
Now about 1 kilometer south of its landing spot, the rover has spotted several promising spots in its search for hints of ancient life.
