The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Solar Orbiter has revealed that tiny, hair-like jets in the Sun’s coronal holes are responsible for both fast and slow solar ...

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

The great planetary parade in February 2025 will see five bright planets in clear view and a special alignment of Mercury and ...

More than a decade of data about the particles zipping around our sun can solve mysteries from the behaviour of individual ...

Mercury takes only 88 Earth days to orbit the sun.

The above 40-second video is sped-up footage of the new-found jets flashing briefly near the Sun’s south pole. In reality, the jets flash for around one minute, flinging charged particles at an ...

Nasa to launch PUNCH Sun mission to recreate solar eclipse - Four suitcase-sized satellites could revolutionise our ...

Scheduled to launch on Feb. 27, NASA's PUNCH mission could revolutionize space weather forecasts, unify the solar corona and ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...