The sun was very active during the total solar eclipse of 1097, so early civilizations got to see solar eruptions during the astronomical event.
There are four Earth-sized planets orbit a star very similar to our sun fairly close to Earth.
If the moon orbits Earth about once a month, why are solar eclipses so rare?
The observations of solar activity come weeks ahead of the upcoming total solar eclipse, the first one to be visible from the United States in 99 years.
NASA’s New Horizons spacecraft is going to solve the mystery of whether this ancient space object is one weird-shaped rock or two that are close enough to touch each other.
The observation was also remarkable for being made during the twilight of dawn, a time when most astronomers have already packed up for the night.
The corona is several hundred times hotter than the 6,000 degrees temperature of the sun’s surface, and this mysterious difference could be linked to solar magnetic activity.
New research from NASA and the ESA shows that the sun's core actually travels four times as fast as the surface does.
We are only halfway through 2017 and already NASA has given us dozens of amazing photos of our planet, our solar system and our universe.
One science project NASA will conduct during the total solar eclipse will be to use jets to gather photos and data on the sun and Mercury.
NASA researchers are hoping to learn more about Earth's energy budget by observing the total solar eclipse in August.
Scientists used to think the sun was special in how its magnetic fields moved and how it erupted gas into space, but it turns out other stars are doing the same thing.
Citrus fruit can cause darker pigmentation in the skin or even second-degree burns.
What does Betelgeuse look like? Astronomers got the most detailed image ever of the star in the constellation Orion, and it could teach us about the evolution of stars and planets.
Planet 10? Pluto had its planetary rank ripped away from it, but there could be two more planets out there waiting to take its place.
“Be like the flower, turn your face to the sun.”
Solar and lunar eclipses are visually stunning, but they also teach us a lot about the solar system and the universe.
A 'breatharian' purposefully chooses not to eat as they survive off of the world's energy.
Analysis of the composition of meteorites suggests that Jupiter formed very soon after the solar system came into existence.
The seven Earth-sized planets in the Trappist-1 solar system formed as their pieces moved toward the star and ice melted into water.
Ancient Mars could have had enough water to fill up a large ocean and many rivers flowing into it.
Thanks to a strong year of releases, Pokémon parent company, the Pokémon Co., saw a hefty bump in annual profit.