New observations of Ganymede reveal a striking similarity between the auroras on the largest moon in the solar system and those on Earth. The international team of astrophysicists, led by researchers ...

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

On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a ...

Richard Carrington’s name has long been connected with the most intense solar storm ever recorded, but his face was unknown ...

What will occur on the Earth when a sunspot with the size of approximately 6.5 Earths begins to release successive X-class ...

This cluster of sunspots has produced more than 60 solar flares, including several that could spark colorful auroras across parts of the northern U.S.

On February 4, 2026, the Sun unleashed an intense X4.2 solar flare, sparking significant radio blackouts across parts of Africa and Europe. This powerful eruption was triggered by sunspot group AR4366 ...

An intense solar flare erupted from a spot on the sun on Sunday, triggering radio blackouts across the South Pacific Ocean—and now scientists are warning of geomagnetic storms in the coming days. The ...

Many in the U.S. faced another night of below-freezing temperatures and no electricity after a colossal winter storm heaped more snow Monday on the Northeast and kept parts of the South coated in ice.

Powerful solar activity released by the sun reached Earth Monday, causing colorful auroral displays and GPS issues for aircraft, according to the National Weather Service’s Space Weather Prediction ...

Stephen Kane, a professor of planetary astrophysics at UC Riverside, was skeptical when he read recent studies that showed the gravitational pull from Mars being connected to Earth’s long-term climate ...