For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare ...

Early in our Solar System’s history, bits of icy debris were scattered and then gradually coaxed into a spiral alignment in ...

The only planet that is out of the viewing loop this month is Saturn, which is too close to the sun to be seen, reaching solar conjunction on March 12. Earth will pass through the plane of Saturn ...

The astronomical linkup is fairly common and can happen at least every year depending on the number of planets.

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

Seven planets will align in a rare planetary parade, offering a view of five planets visible to the naked eye in the night ...

Clear skies will also be necessary to see all the planets. The planets in the solar system orbit the sun, just as Earth does. Every planet orbits at a different speed and distance. During these ...

Like the planets in our solar system orbit the sun, most exoplanets also orbit a star. To date there are over 5500 known exoplanets confirmed by NASA, with trillions more predicted to exist within ...

The planets in our solar system orbit the sun essentially along the same line across the sky in a plane called the ecliptic. For that reason, planets in our Earthly sky always appear somewhere along a ...

A planetary alignment happens when planets “line up” on the same side of the sun. The phenomenon is visible this month ...

All seven of Earth's neighboring planets will be visible as the sun sets this week. Here's everything to know about the event.

The solar system has eight planets. Moving out from the sun ... The new definition requires that a planet: orbit the sun is large enough to be round has cleared its orbit of other small bodies.