Four prominent celestial objects — the moon, a bright planet and two bright stars — will come together to form a "celestial ...

The new moon occurs on June 25. A day later, Mercury reaches its highest point in the evening sky, and on June 27, the young ...

New research suggests that Mercury's crust is shifting and twisting in unexpected ways thanks to the force of the Sun.

Friday, July 4 Mercury reaches its greatest eastern elongation from the Sun, standing 26° from our star at 1 A.M. EDT. We’ll ...

Mercury reaches its greatest elongation, 26 degrees east of the sun on July 4. From latitude 40 degrees north, the ...

Discover why Earth's farthest distance from the sun coincides with summer heat, then grab your binoculars for a week of ...

As the planet closest to the Sun, Mercury has it rough. Not only is it the smallest planet in our solar system, but Mercury’s crust is also fractured and sheared in several places.

The closest world to the Sun has some extreme surface structures, steep hills and cliffs, which have long been suspected to ...

Mercury will reach its greatest eastern elongation, marking the point where it is farthest from the Sun in the evening sky.

Jupiter will be too close to the sun to see Tuesday, but it will move farther out in the dawn sky and on Aug. 12 will have a ...

Mercury will make an opposition to Pluto retrograde, creating a push and pull between the need for bold self-expression and ...