In January 2025, Venus, Mars, Jupiter, Saturn, Uranus and Neptune were all visible in the night sky. And in February, 2025, ...

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

The European Space Agency (ESA) is ready to guide the ESA/NASA Solar Orbiter spacecraft through its closest encounter with ...

Prevailing solar system formation theories indicate that these planets should have at least started out following perfectly circular and share the same orbit. But today, their paths are slightly ...

The solar system is made up of the Sun (our nearest star) and the objects that orbit around it, including planets, asteroids and comets. Planets orbit the Sun in roughly circular paths ...

The interlopers in these near matches dove straight into the solar system, traveling way past Uranus' orbit, with some even grazing Mercury's path. And they were relatively tiny, ranging from two ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar ... elliptical paths described by Kepler's laws of motion. Similarly, moons remain in orbit around ...

circular paths. But our own Solar System's disc is relatively warped, with the orbits of its planets slightly tilted and more oval than circular. What happened to it? It's possible a heavy object ...