A rare celestial phenomenon is about to light up the heavens, offering skywatchers a chance to marvel at the dynamic beauty ...

Could Jupiter ever light up the solar system as a second star? From its hydrogen-rich atmosphere to the laws of physics, we ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

These are the planets that will be visible with the naked eye. A rare parade of planets will light up the night sky ...

The Galileo probe expanded on our knowledge of Jupiter's moon, Io, showing us just how hot and hellish the Jovian satellite ...

Jupiter's Great Red Spot storm, which usually appears dark-red, can be seen shining a lurid blue color in an ultraviolet ...

Venus, Saturn, Jupiter, Mars, Uranus, and Neptune — are currently forming a breathtaking arc in night night sky ...

Skygazers in India are in for a treat as a rare planetary parade is set to grace the night sky in January and February. This ...

Plus: Saturn’s moon Iapetus is visible, our Moon passes the bright star Spica, and Mars skims south of Pollux in Gemini in ...

Mars shines brightly this week as it reaches opposition, appearing golden-red in the sky near Jupiter. Look for it in the ...

NASA, ESA, and M. Wong (University of California - Berkeley); Processing: Gladys Kober (NASA/Catholic University of America) ...

A rare ‘parade’ of planets seen only once every few years will light up the night sky this week in a must-see celestial ...