Guide to Space
Messier 59 – the NGC 4621 Elliptical Galaxy
Located in the southern Virgo constellation, roughly 60 million light-years from Earth, is the spiral galaxy known as Messier 59
What is an Electric Sail? Another Exotic Way to Explore the Solar System
Space scientists are considering how they can catch the charged particles streaming from the Sun with electric sails as a…
Where Do Comets Come From? Exploring the Oort Cloud
Some comets orbit the Sun on a regular basis, but others come in from deep space, a region known as…
Messier 58 – the NGC 4579 Barred Spiral Galaxy
Located in the direction of the Virgo constellation, some 68 million light years from Earth, is the barred, spiral galaxy…
Messier 57 – The Ring Nebula
Located about 2300 light-years from Earth, in the direction of the Lyra constellation, is the planetary nebula known as Messier…
Where Do We Go Next? Building the Deep Space Gateway
NASA is working on developing a space station in a cis-lunar orbit that will serve as the jumping off point…
Messier 56 – the NGC 6779
Located in the northern constellation of Lyra, roughly 32,900 light years from Earth, is the globular star cluster known as…
The Crux Constellation
Located in the southern skies is the Crux constellation (aka. the "Southern Cross"), a constellation that played an important role…
Messier 55 – the NGC 6809 Globular Star Cluster
Located in the Sagittarius Constellation, roughly 17,600 light-years from Earth, is the globular star cluster known as Messier 55
Messier 54 – the NGC 6715 Globular Cluster
Located in the Sagittarius Dwarf Galaxy, some 87,000 light years from Earth, is the globular star cluster known as Messier…