On Jan. 4, Earth received its maximum radiation from the sun, which was at its largest in the sky for 2025. The difference isn't huge — the sun today appears to be a mere arcminute (1/60th of a degree ...

Mars shines in the evening, and is joined briefly by Mercury. Jupiter joins Venus as the month goes on. And all month, look ...

For two weekends in July, Ohio Wesleyan University’s “Place for Space” also will become the “Sun Spot” as Perkins Observatory ...

July 2025 offers dazzling views of Mercury, Venus, Mars, Jupiter and Saturn, as well as a full 'buck moon,' a stunning ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

The impressive footage was captured by Mark Johnston from his backyard in Scottsdale, Arizona. Credit: Mark Johnston Music: A ...

Solar prominences are large, bright features, often appearing as arches or loops, extending outward from the sun's surface.

It explains phenomena such as sunspots, solar prominences, and solar flares, and their effects on the solar wind and Earth's magnetic field.

NASA photographer Keegan Barber captured several bright pink 'solar prominences' during the eclipse as the sun hung nearly 93 million miles above Dallas, Texas on April 8, 2024 (above) ...

The sun goes through an eleven-year cycle of sunspot activity, and we are now at a year of peak solar activity. Sunspots are dark, cool areas on the sun, but dark and cool are only relative to the ...

Several solar eruptive prominences were visible to the naked eye Monday during the total solar eclipse By Frank Heinz and Kevan Smith • Published April 10, 2024 • Updated on April 10, 2024 at ...

A solar prominence is a tangled, twisted structure of magnetic field plasma generated by the sun, according to NASA. The structures are anchored to the sun's surface and extend out for hundreds of ...