NASA’s Solar Dynamics Observatory captured this image of a solar flare — seen as the bright flash toward the upper middle — on Feb. 4, 2026. Scientists studying nearly 50 years of solar activity data ...

Every planet, moon, asteroid, and comet in the solar system combined accounts for a sliver of its total mass. The Sun holds about 99.8 percent of all the mass in the solar system, a figure confirmed ...

The data collected by Parker Solar Probe serves to enhance our understanding of the science behind various solar events.

The Parker Solar Probe, a spacecraft designed to study the Sun up close, reached a major milestone today by making its closest approach ever to our star. Traveling at 430,000 miles per hour, the probe ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...