Guide to Space
How Do Volcanoes Erupt?
Volcanic eruptions are driven by a combination of mechanisms, which include pressure and heat in the Earth's mantle, as well…
How Far Can You Travel?
If you accelerate at 1G, you can create artificial gravity inside your spaceship. And there’s the added advantage that you…
What is the Highest Place on Earth?
Most people think Mt. Everest is the highest point on Earth, but this is not so. Owing to Earth's peculiar…
What is the Surface Temperature of Neptune?
Given its distance from the Sun, and the nature of its composition, Neptune is renowned for being the coldest planet…
What is the Difference Between Lava and Magma?
The difference between lava and magma, which is rather important when it comes to volcanic activity and geology, is just…
The Orbit of Jupiter. How Long is a Year on Jupiter?
A a distant gas giant, Jupiter takes a considerable amount of time to orbit our Sun. In act, a single…
What is the Closest Planet to Earth?
When our Venus (aka. "Earth's Twin") orbits between the Earth and the Sun (i.e. during an interior conjunction), it becomes…
How Does Light Travel?
Since ancient times, scientists have debated the true nature of light. Despite the progress we've made, there are still mysteries…
What Is Air Resistance?
Simply put, air resistance (aka. drag) describes the forces that act opposite to an object's velocity as it travels through…
Messier 14 (M14) – the NGC 6402 Globular Cluster
In the constellation of Ophiuchus lies the M14 globular cluster, a loose concentration of stars spanning 100 light years, 300,000…