There is a constant outward flow of charged particles from the Sun. This flow, known as the solar wind, moves across space and reaches Earth every day.

Earlier this week, the number of visible sunspots on our home star fell to zero for the first time in 1,335 days. This ...

The Sun experienced its first spotless days in four years, from February 22-24, 2026, indicating a shift towards a calmer ...

After what has felt like a long and challenging winter for so many across the country, there’s a lot to look forward to in ...

Six planets are set to align on Saturday, creating a planetary parade that will be visible to sky-gazers across the globe.

NOAA is forecasting a G1-class geomagnetic storm on Monday, Feb. 23, through Tuesday, Feb. 24, with the aurora borealis ...

NASA said Friday it’s revamping its Artemis moon exploration program to make it more like the fast-paced Apollo program half ...

A total lunar eclipse will be visible across most of the United States in the early hours of Tuesday. A total lunar eclipse occurs when Earth moves between the sun and the moon. It creates a dark red ...

Researchers estimate that about one billion years from now, the Sun’s brightness will be high enough to trigger a runaway greenhouse effect. That would cause the oceans to begin evaporating, water ...

Six planets will appear close together after sunset in a rare planetary parade. Here is how and when to see this beautiful ...

Solar Cycle 25 has reached its most active phase, bringing stronger solar flares and geomagnetic storms that may affect Earth’s technology.