Want to know the facts about constellations like the Big Dipper? What is a constellation anyway? Learn all about general Astronomy here with articles about stars, galaxies, exoplanets, comets, meteor showers, celestial events like the winter solstice and and autumnal equinox among many other interesting topics.
There is violence in the Milky Way. Stars are exploding. They are consuming each other. They are having tugs of war with each other’s mass. Images of this violence not only are beautiful and exciting, they are interesting astronomically.
The Universe is incredibly large. Vast empty stretches of space are dotted with a wide array of galaxies — huge cities of stars, each containing hundreds of billions of suns. Take a look at some of the most visually striking and profound galactic images.
Clouds of ionized hydrogen are commonly found in spiral and irregular galaxies. These fascinating regions in space consist of thousands of stars. Find out what they are, how they are formed and what their eventual fate is.
On August 5, Juno began a five year flight to Jupiter. On arrival, it will spend a year making measurements of the gas giant’s magnetic, gravity and radiation fields. It will measure the water in the atmosphere and other atmospheric components. The goal—is our theory of planet formation correct?
Titania is one of the largest and most distant moons of our Solar System. Its existence arouses mystery and wonder since no specific mission has ever studied this beautiful and largest moon of Uranus and very little is known about it.
You could be forgiven for thinking that the 1st Astronomer Royal, John Flamsteed (1675-1719), was the first professional astronomer. In fact 160 years had to pass before the world’s first truly professional star gazer appeared on the scene.
Saturn has many fascinating moons and Tethys is no exception. Two massive surface features, a body of nearly pure water ice and two Trojan companions make it unique amongst the solar family of celestial bodies.
Have you ever spotted a faint oval glow near the horizon in spring or autumn? Then you may have seen the Zodiacal Light. Count yourself lucky! Most people spend their entire lives without ever witnessing this phenomenon. But if you want to know what causes it, read on…
Recent speculation revives the late nineteenth century search for “Planet X,” a large object thought to reside beyond Neptune. The reasons are different. And instead of a massive planet, the object is thought to be a brown dwarf “star.”
On average, once every half century in our Milky Way galaxy, a star blows itself apart and nearly outshines the entire galaxy. The star effectively spills its guts upon the galactic landscape, enriching it with heavier elements like iron, silver, gold and uranium.
The Australian Aboriginal people have a relationship with astronomy that stretches back through many generations. Read on to discover the meaning that astronomy has for the Aboriginal people, how it effects their way of life, and how their stories and traditions give meaning to the night sky.
Have you ever wanted to know more about the Universe, but couldn’t afford your own space ship? Some software prices are pretty outrageous, too. But now you have no excuse. Here you learn about free astronomy software that you can download right away. The sky is now at your beck and call.
The overwhelming brightness of the Sun makes it impossible to view stars or planets during the day, but our close neighbor, the Moon, isn’t like those other astronomical objects. In fact, the Moon is visible during the day! But, why? Simple. It’s astronomical.