Sep 25, 2025 · Solar flares are a sudden explosion of energy caused by tangling, crossing or reorganizing of magnetic field lines near sunspots. The surface of the Sun is a very busy …

Apr 8, 2024 · This image was captured in Hopkinsville, Kentucky during the 2017 eclipse. Credit: NASA/MSFC/Joseph Matus But not everyone experiences every solar eclipse. Getting a …

Sep 25, 2025 · The biggest planet in our solar systemWhy does it look like the Moon is changing shape? From Earth, it might look like the Moon is changing shape each night – from a tiny …

Sep 25, 2025 · The solar cycle affects activity on the surface of the Sun, such as sunspots which are caused by the Sun's magnetic fields. As the magnetic fields change, so does the amount …

Sep 25, 2025 · It's really hot inside Jupiter! No one knows exactly how hot, but scientists think it could be about 43,000°F (24,000°C) near Jupiter's center, or core. The reddish brown and …

Sep 25, 2025 · The light of daytime comes from our closest star: the Sun. Learn more about it! Can you find all the NASA and space-themed hidden objects? Learn more about what …

The sunspots can last for a few days or even a few months. During that time, they move across the surface of the sun and change in size, growing and shrinking as they go.

Jun 27, 2019 · Our Sun is a bright, hot ball of hydrogen and helium at the center of our solar system. It is 864,000 miles (1,392,000 km) in diameter, which makes it 109 times wider than …

Sep 25, 2025 · Jupiter is the biggest planet in our solar system. It's similar to a star, but it never got massive enough to start burning. It is covered in swirling cloud stripes. It has big storms …

Sep 25, 2025 · Each of the planets in our solar system experiences its own unique weather. But one thing is certain: Only Earth has weather we can live with. Let's take a weather tour of the …