Close-up observations of the Sun explain how solar flares start, grow, and send high-energy particles racing through space.

A coronal mass ejection releases from the left side of the sun in May 2024. - SOHO (ESA & NASA)/NASA/SDO/AIA/JHelioviewer/D. Müller For the first time, astronomers ...

With a lot of talk about space recently, have you ever wondered which are the hottest planets in the solar system? You'd think the closer you are to the sun, the hotter they must be. Now that's mostly ...

In a dramatic escalation of solar activity, the sun has unleashed an X8.3 flare — 2026’s strongest yet — causing radio ...

Solar wind sounds poetic, but it's a very real and powerful phenomenon, connecting the Sun to every part of our solar system.

A recent study published using data collected by the James Webb Space Telescope (JWST) has reported the most detailed study of the atmosphere of a planet beyond the Solar System yet, including ...

Scientists may have been overestimating the size of the solar system’s biggest planet. New data from NASA’s Juno spacecraft ...

In newly published research, CU Boulder scientists study a rocky exoplanet outside our solar system, learning more about whether and how planets maintain atmospheres In June 2019, Harvard ...

Far from the Sun’s heat, orbiting the outer planets of the solar system, are moons with oceans of liquid water beneath their frozen surfaces. Keith Cooper finds out how planetary scientists are ...

(CNN) — For the first time, astronomers say they have spotted a giant explosion released by a star beyond our solar system. The eruption was similar in some ways to those unleashed by our sun, such as ...