The study of planets beyond the solar system has reached an unprecedented milestone, with over 5,700 confirmed exoplanets.

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

We'll see six planets in the first part of February – Mars, Jupiter, Uranus, Neptune, Venus and Saturn – and on Feb. 28, they ...

The full snow moon will rise on Wednesday, Feb. 12, with the “Heart of the Lion,” or Regulus, the brightest star in the ...

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

Don't put your binoculars away just yet, the planet parade continues through February. Here's which planets will be visible ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Explore the impact of stellar flares on the potential for alien life. Discover how higher levels of UV radiation can both ...

Mars, Jupiter, Uranus, Venus, Neptune, Mercury and Saturn will appear in a row on the evening of 28 February, marking the ...

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...