The sun's distance from Earth changes throughout the year but it has nothing to do with ... of other planets. "In about 1604, Johannes Kepler fitted an ellipse model of Mars' orbit to observations ...

Stargazers can witness a rare 'planet parade' in January and February 2024, where six planets align prominently in the night ...

A parade in the sky is happening throughout January. Six planets—including Venus, Saturn, Neptune, Mars, Uranus, and ...

Mars, Jupiter, Venus, Saturn, Uranus and Neptune are visible this month in a 'planetary parade'. Dr Becky Smethurst at the ...

And of course, Mars requires longer to orbit the sun than the Earth ... reason why we cannot do this." How long did previous Mars missions take to reach the Red Planet? Here is an infographic ...

That puts it only slightly farther than Mars' current orbit of 1.5 AU from the sun. The simulations show that just one substellar object flyby was sufficient to alter the giant planets' trajectories.

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Stargazers will be treated to a dazzling six-planet "alignment" this January.

The planet parade occurs when the planets' positions in their elliptical orbit around the sun line make them seem ... ‘Galactic 02’ Sky gazers, do not miss this rare opportunity to witness ...

This month offers incredible views of six planets, including Venus-Saturn conjunction. See the dates for all of 2025's ...

Because the period of an object does not depend on its mass, comets’ orbital periods remain unchanged due to mass loss.

A rare celestial event where seven planets align is visible in the UK skies. Discover how, when, and where you can observe ...