Category Archives: CNN – World

‘Oddball supernova’ reveals star’s death throes before exploding

‘Oddball supernova’ reveals star’s death throes before exploding

Stars experience very violent lives that usually end in dazzling explosions, and scientists have tried for years to determine what happens to massive stars just before this bombastic finale. Now, an unusual supernova is helping researchers piece more of that stellar puzzle together. An international team of researchers used NASA’s Hubble Space Telescope to observe…MORE

Parker Solar Probe detects a radio signal from Venus’ atmosphere

Parker Solar Probe detects a radio signal from Venus’ atmosphere

The Parker Solar Probe is on a mission to study the sun, but it keeps discovering new, intriguing things about our mysterious planetary neighbor Venus. The NASA spacecraft flew by Venus last summer and detected a natural radio signal from Earth’s twin. This signal revealed that the probe actually passed through the upper atmosphere of…MORE

Why we ‘may not get to zero’ on Covid

Why we ‘may not get to zero’ on Covid

President Joe Biden predicted a return to some normalcy “by the end of the summer” on Monday, but health experts are increasingly doubtful that the United States will reach herd immunity from Covid-19. America’s outlook is rosier now than it has been in months; daily coronavirus cases and deaths have fallen to one-fifth of what…MORE

Hubble spies rare giant star battling against self-destruction

Hubble spies rare giant star battling against self-destruction

Some stars live fast and look beautiful doing it before they die young in a brilliant explosion. AG Carinae, a blue giant star located 20,000 light-years from Earth in the Milky Way galaxy, is one of those stars. This bright star’s explosive infamous temper tantrums are part of what make it so scintillating. The Hubble…MORE

Will US lift vaccine patents?

Will US lift vaccine patents?

As India’s explosive outbreak spills beyond its borders, the West and its drug companies are under growing pressure to waive intellectual property rights to Covid-19 vaccines and treatments so more countries can start making them. On Sunday, the US acknowledged those calls, with White House Chief of Staff Ron Klain telling CBS News that US…MORE

Black physicist rethinks the ‘dark’ in dark matter

Black physicist rethinks the ‘dark’ in dark matter

When many kids were running around playing tag or video games, Chanda Prescod-Weinstein was thinking about particle physics. After her mother took her to see “A Brief History of Time,” Errol Morris’ 1991 documentary about theoretical physicist Stephen Hawking, she fell in love with the discipline. She was just 10 years old. Nearly 30 years…MORE

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