which we rank as the best budget telescope for backyard moon and planet gazing ... star diagonal, backpack, finder scope, moon filter, tripod and smartphone adapter, this grab-and-go telescope ...

This means all the water on our planet must have originated from extraterrestrial sources. Studies of ancient terrestrial rocks suggest liquid water existed on Earth as early as 100 million years ...

Barnard’s Star has fascinated astronomers for decades. At just six light-years away, it is the second-closest single star to ...

With family wealth to back him, he founded an observatory in the western dark-sky desert of the U.S. and hoped to unlock the mystery of the Red Planet. He soon became fascinated by another cosmic ...

Pluto was discovered at Lowell Observatory in Flagstaff, Arizona in 1930 and was considered our ninth planet until 2006. The International Astronomical Union reclassified Pluto as a dwarf planet ...

New ground-based instruments such as the Keck Planet Finder, which recently went online at the Keck observatory, and other high-precision radial velocity tools will be indispensable in testing our ...

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short life of what was, for a single human lifetime, the solar system's ...

By Katrina Miller Astute skywatchers may have already seen the striking line of planets across the night sky in January. This week Mercury joins the queue. Now every other world in our solar ...

Seven planets are aligning in the night sky this week, creating a brief chance to see a "planetary parade." Worldwide, the best day to see the alignment is today, Feb. 28. Mercury, Venus ...

A rare celestial event on Feb. 28 will offer skywatchers the chance to witness a "planet parade" of all seven planets in our solar system outside of Earth. It's the last time this type of ...

This latest planetary alignment or "planet parade" - set to take place on the evening of Feb. 28, just after dusk, according to SkyatNightMagazine. Once they are all in place, seven of the eight ...