News
- Physics
Colliding photons were spotted making matter. But are the photons ‘real’?
Smashups of particles of light creating electrons and positrons could demonstrate the physics of Einstein’s equation E=mc2.
- Health & Medicine
Schools are reopening. COVID-19 is still here. What does that mean for kids?
Children do get COVID-19, and some become very sick and even die. But the disease’s long-term effects on kids remain uncertain.
- Animals
Squirrels use parkour tricks when leaping from branch to branch
Squirrels navigate through trees by making rapid calculations to balance trade-offs between branch flexibility and the distance between tree limbs.
- Space
A lunar magnetic field may have lasted for only a short time
New analyses of Apollo-era lunar rocks suggest that any magnetosphere that the moon ever had endured for no more than 500 million years.
