After weeks of reduced activity, the sun erupted with three powerful flares on a single day. That could send solar flares ...

Earth's magnetic field weakened dramatically. This period, known as the Laschamps excursion, may have unexpectedly influenced ...

This investigation reveals the dangers posed by solar flares, massive eruptions from the Sun capable of disrupting life on ...

The M4.4 solar flare unleashed a coronal mass ejection (CME) into space — and Earth might just receive a glancing blow.

Our sun is about five times less magnetically active than other sunlike stars—effectively a special case. The reason for this ...

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to ...

Space weather experts warn that a moderate-strength geomagnetic storm could hit Earth Friday or Saturday (Aug. 8 or 9) — ...

Hubble telescope captures third interstellar visitor 3I/ATLAS showing active dust coma racing through solar system.

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers ...

Solar storms can bring more than colorful lights to Earth. When fast-moving particles and plasma slam into Earth’s magnetic field, they can temporarily disrupt the power grid.