The sunspot region 4366 fired off dozens of powerful solar flares in 24 hours, including the single strongest flare since 2024. Auroras are possible later this week.

Coronagraphs are telescopes equipped with an occulting disk to block out the overwhelming radiation emanated from the visible surface of the Sun, along with optical stops and filters that are ...

The tallest cliff in the solar system is so extreme that even imagining standing on its edge is enough to make your stomach ...

Scientists have long relied on tree rings to learn about ancient solar storms—rare bursts of high-energy particles from the ...

Scientists argue that limiting the search for life strictly to a star’s traditional habitable zone is too restrictive. That ...

Astronomers suspect that a massive metallic cloud swirling in a nearby star system could be hiding a giant planet or dwarf ...

Embarking on a spur of the moment astronomy lesson, Musk explained that the sun makes up some 99.8% of mass of the solar system, and that Jupiter, the biggest planet, is just kind of a rounding error ...

Behavior might be chalked up to more than just intentional choices.

Scientists are sharpening the methods used to search for alien artifacts inside our own solar system, drawing on recent ...

Larry Fink, president and CEO of investment firm BlackRock, interviewed Elon Musk, CEO of Tesla and SpaceX at the World ...

Professor Avi Loeb of Harvard cited three reasons 3I/ATLAS might be an alien spacecraft. First, its trajectory is highly ...

Elon Musk marked his last-minute Davos debut on Thursday with a critique of U.S. solar tariffs and aggressive targets for ...