The summer solstice marks the start of astronomical summer and the longest day of the year. Here we explore when the summer ...

When is winter? Weather forecasters in the Northern Hemisphere will tell you Dec. 1 through the end of February, which is ...

A vast, magnetically tangled sunspot has rotated into direct view of Earth, raising the prospect of powerful solar eruptions ...

An idea about the sun’s magnetic field called the terminator model could help predict dangerous space weather more accurately ...

Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t ...

NASA has announced when the longest total solar eclipse of the century will occur—and you won’t have to wait long. Here’s ...

Now, Nasa and its European counterpart have released new images of 31/ATLAS ahead of its close encounter with Earth on ...

Astronomers have produced the first continuous, two-dimensional maps of the outer edge of the sun's atmosphere, a shifting, ...

Researchers at the University of Hawaiʻi Institute for Astronomy (IfA) are helping reshape how scientists study the sun. The ...

A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...