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Space Exploration Jul 6, 2021

Significant solar flare erupts from sun

The sun emitted a significant solar flare peaking at 10:29 a.m. EDT on July 3, 2021. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event.

Astronomy Apr 26, 2016

Nearby massive star explosion 30 million years ago equaled detonation of 100 million suns

A giant star that exploded 30 million years ago in a galaxy near Earth had a radius prior to going supernova that was 200 times larger than our sun, according to astrophysicists at Southern Methodist University, Dallas.

Planetary Sciences Apr 19, 2024

Cosmic rays streamed through Earth's atmosphere 41,000 years ago: New findings on the Laschamps excursion

Earth's magnetic field protects us from the dangerous radiation of space, but it is not as permanent as we might believe. Scientists at the European Geosciences Union General Assembly present new information about an 'excursion' ...

Astronomy Mar 19, 2024

Astrophysicist explains science behind once-in-a-lifetime nova outburst that will light up the sky this year

The total solar eclipse isn't the only reason to keep your eyes to the sky this year. For the first time in 80 years, a star system 3,000 light years away will be visible to the naked eye thanks to a once-in-a-lifetime nova ...

Astronomy Apr 5, 2024

Astronomers detect potential 'glory effect' on a hellish distant world for the first time

Potential signs of the rainbow-like "glory effect" have been detected on a planet outside our solar system. Glory are colorful concentric rings of light that occur only under peculiar conditions.

Astronomy Jun 4, 2020

A mirror image of Earth and sun

Among the more than 4,000 known exoplanets, KOI-456.04 is something special: less than twice the size of Earth, it orbits a sun-like star. And it does so with a star-planet distance that could permit planetary surface temperatures ...

Social Sciences Apr 8, 2024

During a solar eclipse, some Indigenous groups believe it's not just your eyes that need protecting

The last time a total solar eclipse cast its shadows across the United States in August 2017, Jenée Chizick-Agüero, the founder and publisher of Motivos magazine, was pregnant with her son.

Space Exploration Apr 24, 2017

Cassini, Voyager missions suggest new picture of Sun's interaction with galaxy

New data from NASA's Cassini mission, combined with measurements from the two Voyager spacecraft and NASA's Interstellar Boundary Explorer, or IBEX, suggests that our sun and planets are surrounded by a giant, rounded system ...

Plasma Physics Jul 6, 2017

China's 'artificial sun' sets world record with 100 second steady-state high performance plasma

China's Experimental Advanced Superconducting Tokamak (EAST) made an important advance by achieving a stable 101.2-second steady-state high confinement plasma, setting a world record in long-pulse H-mode operation on the ...

Astronomy Nov 26, 2021

Two exoplanets orbiting a sun-like star discovered

An international team of astronomers reports the detection of two new exoplanets orbiting an evolved sun-like star known as HD 137496. The newly found extrasolar worlds, identified using NASA's Kepler spacecraft, were classified ...

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