What Is an Aortic Dissection?
The condition that killed Senator Lindsey Graham is deadly, sudden and difficult to treat — “like a knife to the heart,” one expert sa…
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A Picture-Perfect Landing Shows China’s Ambitions to Narrow the Space Race
A space neophyte not long ago, China is now the United States’s main competitor for supremacy throughout the solar system.
Your Cat Is Being Nice? Think Again.
A new study finds that sometimes cats groom each other specifically to be annoying.
Nobel-Winning U.S. Chemist Will Move to China to Lead A.I. Institute
Omar Yaghi of the University of California, Berkeley, will head an initiative to apply artificial intelligence to the discovery of new mater…
Joseph Fraumeni, 93, Dies; Helped Discover Genetic Link to Cancer
Considered the founder of molecular epidemiology, he worked with Frederick P. Li to identify a hereditary disorder that increased the risk o…
This Star Just Ate a Planet, and It’s Not Done Yet
A star 1,300 light-years away appears to have just consumed one world and is gearing up for seconds.
Wally Funk, Who Set an Age Record for Space Travel, Dies at 87
As a young woman in the 1960s, she wasn’t allowed to become a NASA astronaut. She finally realized her long-held dream of flying in space …
These Animals Were Righties Long Before Hands Even Evolved
Scientists propose that recently uncovered fossils may be the earliest evidence of behavioral “handedness” in animals.
In Deep Space, China Meets Earth’s ‘Amazing’ Quasi-Moon
A Chinese spacecraft has captured the first image of the asteroid Kamo‘oalewa.
In a First, Scientists Observe Creation of New Seafloor
The spread of the ocean floor, as tectonic plates spread apart, is known but hard to observe. Scientists have now documented the process in …
Russia Captured Chernobyl. The Wildlife Cameras Kept Recording.
A rare camera-trap study logged the effects of armed conflict on wild animals in real time.
Cosmic Conjoined Twins, Caught on Camera
A Japanese spacecraft flew by an asteroid and snapped a picture. It turned out to be a “contact binary”: two space rocks that somehow fu…