Mercury joins the night sky to complete a seven-planet alignment just after sunset for the end of February. Saturn leaves our ...

Like a celestial parade across the cosmos, five bright planets are lighting up the night sky and visible with the naked eye ...

Mercury takes only 88 Earth days to orbit the sun.

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

The closest of the asteroids to us—estimated to be about the size of a car—is whizzing through space at 27,358 miles per hour ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

YR4 has just above a 1% chance of crashing into Earth in 2032, which is why astronomers and space agencies are paying attention to it.

Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.

then the difference in this path can be traced out and allows you to measure the eccentricity of the orbit and determine its perihelion as well." All solar system planets have fairly circular ...

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, a ...

The world's space agencies are keeping close watch on an asteroid heading our way, because there's currently a 1 in 83 chance ...