Northern lights occur when a solar flare interacts with Earth's atmosphere.
A new sunspot group has quickly grown and is spewing out the most intense type of solar flare. Effects on Earth are forecast ...
The flares are coming from a solar region that was created in late January.
A NASA mission is underway to map the heliosphere, which is a huge protective bubble around the solar system that was created by the sun.
If the building-size asteroid 2024 YR4 crashes into the moon in December 2032, the impact will produce a bright flash that ...
The sunspot region 4366 fired off dozens of powerful solar flares in 24 hours, including the single strongest flare since ...