Despite common assumptions, the disk of our Solar System is warped, and the planets travel around the Sun in slightly ...

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.

So you can see every planet in our solar system over the next month. Here's what you need to know to spot each planet. What is the planetary alignment? Though they appear in an arc across the sky ...

Uranus and Neptune are there too, technically, but they don't appear as 'bright planets'," NASA's Preston Dyches explained in a stargazing video guide. Stock illustration of all the solar system's ...

A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets, a new study suggests.

A planet-sized visitor possibly visited the solar system billions of years ago and permanently changed the cosmic neighbourhood by warping the orbital path of four outer planets of the system ...

The planets will appear to line up — but no more than usual. The planets in our solar system orbit the sun in more or less the same flat plane as the Earth, according to EarthSky.org ...

21. A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There will be six planets visible this time around, including Venus, Mars ...

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