Screen time limits can protect children’s health, U.S. surgeon general advisory says
The Trump administration warned that too much screen time for children has been linked to poor sleep, bad behavior, and less physical and social activity
An Ebola outbreak is spreading fast. Should you be worried?
A deadly Ebola outbreak in parts of Africa is raising international alarm. Still, experts stress that the chance of a pandemic is low
These bizarre fossils represent some of the earliest moving, sexually reproducing life ever discovered
New trove of fossils reveals that ancestral animals likely emerged in the deep sea
Ebola vaccines exist, but not for the strain in the current outbreak
A decade after Ebola vaccines changed outbreak response, a new epidemic in central Africa is caused by a strain the world never fully prepared for
NASA’s Psyche captures gorgeous Mars crescent photo on way to asteroid
NASA’s Psyche snapped images as it flew by Mars last week. The spacecraft used the planet’s gravity to give itself a boost on its journey toward its target asteroid
The Colorado Avalanche is dominating the NHL. The reason could lie in a quirk of geography
Denver’s hockey team is studded with stars, but training and playing the game some 5,000 feet above sea level may give their athletic performance a boost over that of their rivals
Putting a nuclear reactor on the moon: big promise, bigger challenges
Nuclear power could enable long-term lunar missions, but NASA’s timeline may be too ambitious
Did the last common ancestor of humans and apes walk like a gorilla? A new study offers a clue
Some extinct human ancestors and modern-day apes appear to share wrist traits that raise the question of whether our last common ancestor walked on its knuckles
Extreme heat is breaking records in the East. Here’s why
A Bermuda high parked over the western Atlantic is pulling sweltering air up from the south, challenging records in parts of the eastern U.S.
The last 12 months in the U.S. were the hottest on record
March was a scorching 9.35 degrees Fahrenheit hotter than the 20th-century average for the month, capping the hottest 12-month stretch for the U.S. since records began in 1895
SpaceX punts Starship launch as investigation opens into Starbase worker’s death
SpaceX is now targeting the evening of May 21 to launch the latest and largest version of its Starship megarocket for the first time
What it’s like being stuck in a hantavirus quarantine for six weeks
Scientific American spoke to one of the people who are currently being monitored for possible hantavirus infection at the National Quarantine Unit in Nebraska