Sunspot activity increases on November 1, 2025, as new regions emerge on the Sun. Solar flares, coronal mass ejections, and geomagnetic conditions are monitored by NASA/SDO and EarthSky.

An interstellar comet that originated outside our solar system has just made its closest pass to the sun, brightening ...

A supersonic jet plane designed to make very little noise took flight for the first time this week, cruising over the ...

This statement might sound like a line from a sci-fi movie, but what if life on Earth didn’t start here at all? For decades, ...

On October 3, 3I/ATLAS passed within 29 million kilometers of Mars, where it was photographed by the HiRISE camera aboard NASA’s Mars Reconnaissance Orbiter — a rare observation of an interstellar ...

The X-59 successfully completed its inaugural flight—a step toward developing quieter supersonic jets that could one day fly ...

Interstellar comet 3I/ATLAS is briefly out of view as it travels around the sun this week, but researchers and amateur ...

Scientists have finally observed long-sought twisting magnetic waves, known as torsional Alfvén waves, in the Sun’s ...

Space.com, which first reported the images, notes that this kind of Halloween-themed coincidence isn't new. The Sun has shown ...

Scientists have spotted elusive "magnetic waves" in the sun's atmosphere that may explain why the sun's corona is much hotter ...

Newly discovered multi-wavelength view of a stellar eruption on a young Sun-like star is changing how we think about life's ...

Although Earth’s two hemispheres lie on opposite sides of the planet and differ in many ways, they share a peculiar ...