The sun is in its most active phase—solar summer—causing auroras and posing real risks to satellites, GPS, and power systems ...

The U.S. boasts incredible bike trails. From the Idaho mountains to the Arizona desert, to both Atlantic and Pacific shores, ...

The Solar System is vast, made up of eight planets, countless moons, and millions of asteroids, all orbiting the Sun. But like any territory, it has a boundary. This boundary is invisible, yet it ...

Roughly every 378 days, Saturn swings into opposition, appearing up to 30% brighter and staying visible from dusk until dawn.

Much as we may treasure and proclaim our independence, we actually live in a protective bubble called the heliosphere.

The WNBA is repaying Connecticut fans for their loyalty by trying to move the Sun out of state, writes ESPN's Dan Wetzel.

Every 378 days, Saturn swings into opposition, bringing it closer, brighter, and nearly 10 times easier to observe than at ...

The trees parted to a meadow of purple wildflowers. The glaciated silhouette of Oregon’s tallest mountain pierced the skyline, surrounded by swirling clouds. There it was: the breathtaking peak of ...

So the bottom line is that the gravity of the closer tidal bulge on the Earth is pulling the Moon forward, which increases the size of the Moon’s orbit. This means that the Moon gets slightly farther ...