Guide to Space
What is the Color of Pluto?
Thanks to the New Horizons mission, which conducted the first detailed study of Pluto in 2014, we know that Pluto's…
What is an Astronomical Unit?
The average distance between the Sun and the Earth - 149,597,870.7 km (or 92,955,807 mi) - is known as an…
Messier 38 – The Starfish Cluster
Located in the direction of the northern Auriga constellation, some light 4,200 years from Earth, is the open star cluster…
What About a Mission to Titan?
Europa is fine and all, but where we really need to go is Saturn's moon Titan. Let's look at some…
Why Doesn’t Earth Have Rings?
You'd think Saturn has all the luck, with its awesome rings. But it turns out, living on a planet with…
What is Uranus Named After?
Uranus was named in honor of the father of Cronos in Greek mythology, befitting its place in the Solar System…
How Far is Venus From the Sun?
In addition to be the second closet planet to our Sun, Venus also has the most circular orbit - varying…
Messier 37 – the NGC 2099 Open Star Cluster
Located in the Auriga constellation, roughly 4500 light years from Earth, is the open star cluster known as Messier 37.
What Did Cassini Teach Us?
In just a few months, NASA's Cassini spacecraft is going to die, crashing into the planet Saturn. Let's look back…
How Long is Day on Mercury?
Due to its rapid orbital period and slow rotation, a day on Mercury lasts 176 days, which is twice as…