Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

The four planet-strong "planet parade" currently visible to the naked eye in the night sky for a short time after sunset will ...

Jupiter has been high in the sky in the evening lately, and that stirred a memory of the first time I ever saw Jupiter ...

The zodiacal light shines in the evening as the Moon reaches Last Quarter and skims past Spica and Antares in the sky this ...

Although the occurrence climaxed on Jan. 21 with a conjunction—close alignment—of Saturn and Mercury, the planetary parade ...

"An asteroid this size impacts Earth on average every few thousand years and could cause severe damage to a local region," ...

Is Earth really exceptional?  A new book seems to reaffirm that notion.  But given the right conditions, primitive life may be a mere byproduct of biophysics.

The moon reached its peak brightness at 8:53 a.m. EST (1353 GMT) on Feb. 12, but local moonrise and moonset times will depend ...

The chances of an asteroid striking Earth within the next decade has doubled in a matter of weeks, according to NASA astronomers.

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

A star system has been discovered to be moving at an estimated 1.2 million miles per hour, making it possibly the fastest moving solar system in our galaxy.

The system is believed to be traveling at least 1.2 million miles per hour (1.93 million kilometers per hour), according to a ...