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Articles on Sun

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This artist’s rendition shows NASA’s Parker Solar Probe approaching the Sun. Steve Gribben/Johns Hopkins APL/NASA via AP

2 solar probes are helping researchers understand what phenomenon powers the solar wind

For years, researchers have wondered what energy source allows the solar wind − a projection of charged particles from the Sun − to rush by at hundreds of miles a second.
An artist’s depiction of the heliosphere, the Sun’s region of influence in space. Little is known of the actual shape of the heliosphere. NASA

Scientists call the region of space influenced by the Sun the heliosphere – but without an interstellar probe, they don’t know much about its shape

An interstellar probe could help scientists answer fundamental questions about how the Sun influences Earth, space and other planets in the solar system.
A composite photograph of the solar eclipse on Dec. 26, 2019 in Liwa, United Arab Emirates. (Abed Ismail/Unsplash)

The total solar eclipse is a cosmic spectacle well worth the hype

Eclipses have long fascinated and intrigued people, and anticipation of the total solar eclipse on April 8 is no exception. The beauty, history, mythology and science of eclipses justify the hype.
Changes in light qualities during a solar eclipse are quick and drastic, so familiarity with aperture and shutter speed are important. People with cameras among viewers of a partial solar eclipse in Yanguan town, Haining City, China, in 2009. (AP Photo/Eugene Hoshiko)

Photographing the eclipse? You’ll join a long history of people seeking proof of experience

Apart from technical aspects, a successful photograph of the eclipse serves as a lasting reminder of the sense of wonder and the feeling of being part of something larger than ourselves.

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