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The science of de-extinction does not exist, but Colossal Biosciences’ “artificial egg” is an interesting technical feat

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

A deadly Ebola outbreak in parts of Africa is raising international alarm. Still, experts stress that the chance of a pandemic is low

New trove of fossils reveals that ancestral animals likely emerged in the deep sea

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 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

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

Nuclear power could enable long-term lunar missions, but NASA’s timeline may be too ambitious

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

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.

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 is now targeting the evening of May 21 to launch the latest and largest version of its Starship megarocket for the first time

Scientific American spoke to one of the people who are currently being monitored for possible hantavirus infection at the National Quarantine Unit in Nebraska

The sudden resolution of a well-known conjecture highlights the growing adoption of AI as an assistant in high-level mathematics

The new image shows the galaxy NGC 1266, a transitional object with a clutch of young stars that likely collided with a smaller galaxy 500 million years ago

Clinical trials for treatments against Ebola Bundibugyo virus are ‘in a strong position’ to be launched quickly in the Democratic Republic of the Congo and Uganda

Fix the matchstick equation in this math puzzle

Mosaic depictions of a weapon-wielding female gladiator are the first physical evidence showing women in ancient Rome could be skilled beast hunters

To build its moon base, NASA needs a lot of power

Quantum computing could lead to revolutions in cryptography, materials design and telecommunications. But fulfilling those promises could be many years away