The magnification of a telescope can be improved by using extra optical devices. A Barlow lens and other hand-made devices will allow you to amplify the image seen through the telescope lens
Black holes, mysterious objects of the universe, have many different types. Do you know the differences between them all?
A time of turmoil in the solar system, much evidence is found for its lasting impact. Here we examine that and see what conclusions we can reach.
NASA and SpaceX plan to colonize Mars within the 21st century. They are preparing ships, cargo, and crew for an intergalactic voyage mid-2030. Here is everything you need to know about living on Mars.
This article suggests a list of the thirteen greatest airplanes of all time, emphasizing the importance of each during its time and place in world history.
Nobody knows exactly where this probe is nowadays. NASA lost contact with it in 2003, ending a 30-year mission. But there's a milestone here, it's now the furthest derelict man-made object.
The Summer Triangle is the name given to an area of the night sky that contains several features of interest for the amateur astronomer.
This page is part of a series on America's first manned space program, Project Mercury. America's third manned orbital spaceflight took place on October 3, 1962.
Despite what you may have been told, we can see around a black hole if the conditions are right. Based on what we find there, we may have to rewrite the books on relativity.
Have you ever thought about how nice it would be to travel back in time to repair bad choices? Perhaps you've dreamed of seeing someone from your past? According to scientists time travel is possible.
Not necessarily the first place to go looking for one of these features, to be fair. But that is okay, for the mechanics of this one are truly noteworthy.
The inner planets are small, rocky, low on moons, and ringless - yet the outer planets are huge, gaseous and icy, with rings and lots of moons. Find out why!
Though largely abandoned, the idea of a missing planet or asteroid field between Mercury and the Sun continues to intrigue us.
The constellation Virgo is one of the oldest-named constellations. It has a great mythological history and hundreds of galaxies and "Messier" objects within its boundaries. Find out more about the "Diamond of Virgo" and the "Field of the Nebulae."
The astrolabe has been used by mariner's for centuries. Although its use has largely fallen by the wayside due the development of more sophisticated instruments such as telescopes and GPS, it is still an instrument worthy of study. Build your own simple astrolabe to determine your latitude as did the ancient sailors or use it in conjunction with trigonometry to determine the height of a very tall object!
For high-grade worry warts there’s now a way to determine just what will happen if their community is hit by a space invader.
Stages in the Life Cycle of Stars - From protostars to white dwarfs, neutron stars, black holes and supernovae. The stages in stellar evolution are described.
Though Pluto is no longer a planet, few know about the deep-space objects that were found which sparked that change.
Another astronomical mystery without an easy solution. Did astronomers find an unknown planet in the 1830s?
Astronomy is full of historical examples of mysterious objects seen but weren't really there. Did Lassell actually spot the rings of Neptune?
Learn more about the Drake Equation, a tool used to predict the number of intelligent alien civilizations in our Milky Way Galaxy.
At the dawn of civilization, people worshiped the Sun as a divine being. Today, science has solved many of its mysteries. Here are ten fun, interesting and surprising facts about our nearest star.
Though a thorough list of movies would go on forever, it is possible to look at the Hollywood approach to black holes and learn what they got right—and absolutely wrong.
This is the third page in a series of guides for anyone who wants to learn a little more about our night sky. This page looks at those most numerous of all objects visible in the night sky - the stars
Not something we think about often, but these waves would solve many problems in physics. Now, how to find them...
While there were many misses in this field, they deserve recognition as steps towards a sound method for exoplanet hunting.
Photos and fun information about some of the coolest moons in our solar system besides our own Moon.
With our home planet, Earth, growing ever crowded, we need to start searching for solutions. One solution is to terraform another nearby planet. Can people live on Mars? Is that the solution?
Though a fast-paced mission, this was a big step for later missions like LCROSS and LRO, and the science achieved here had implications we see to this day.
We waited for nearly a decade but New Horizons accomplished its primary mission of rendezvousing with Pluto. What secrets did it uncover?
This is a review of what it’s like to live on the International Space Station, based on my research of human survival in space.
How do we measure the distance to far away objects? A tough talk for sure, and the history behind the theories involved are just as interesting.
Well before the rigors of science took hold in the world, people have come up with some creative ideas for our solar system. Let us explore a few of those now.
Space exploration is dangerous business. Despite hard training and dedication, these ten astronauts perished before making it into outer space.
Much is discussed about Saturn and Titan, but the minor moons of Saturn deserve their moment in the spotlight.
Einstein has been verified time and time again. Want another test or two? Then let us push it to the extreme just like Gravity Probe A and B did.
Known for the ability to find alien worlds, the Kepler Space Telescope has changed our way of thinking of the universe. But how was it built?
Is Nibiru, the legendary Planet X, a real threat bring to doomsday to our planet? Could it be closer than we feared?
The study of exoplanets is a relatively new, and exciting, field of astronomy. What are the main techniques used by astronomers to discover these new planets?
Mercury is not only the first planet in the solar system but the least understood terrestrial planet. That all changed with the arrival of MESSENGER, and the secrets it uncovered are mysterious.
Earth will one day be rendered uninhabitable, and humans will move forward in colonization and terraforming efforts. Here we debate the ethical dilemmas and relevant laws and policies.
Alex explores the possibility that life may exist on Saturn's Moon Titan. He references multiple credible sources to give credence to his thoughts as he explores the potential of our solar system!
Do you usually wonder what the Moon is made of? Well, read about the surface features of the moon and their importance. See also the facts about the components and parts of the lunar.
My attempt to satisfy the question 'Can Life Exist in the Sirius Star System'. I hope you find it educational and enjoyable as I did doing the research
There is a lot going on in the night sky. Take a look with a discerning eye and be amazed at the celestial entertainment above.
Universe is an amazing place, full of stars, planets and what not. Today we're looking up at 5 amazing stars of the universe.
Everybody knows light can not escape a black hole. But why? The answer lies at the event horizon, and in the very fabric of space time itself.
Is the universe a one-time event that worked perfectly, or had it failed many times until the universe we now live in?
The dawning of Age of Aquarius is more than just a lyric from a 1970s musical. It is a very real astronomical phenomenon that will occur in the not too distant future. To understand when this new age will occur requires a bit of understanding of the constellations of the Zodiac, as well as the dynamics of Earth's orientation in the Solar System that cause the astrological age to change over time.
The Geminids is an annual meteor shower and it's known as one of the most intense showers. There are usually anywhere from 80 to 120 meteors every hour in the sky and the peak occurs on December 13-14
The Fermi Paradox asks why it appears we are alone in the universe when the probability of alien life seems so high. Where are they? Where is everybody?
Most of us expect galaxies to be filled with the light of thousands of millions of stars, but another type of galaxy is thought to exist – one that contains hardly any stars at all.
This hub article is a middle school science lab lesson plan. Specifically, it is a hand-on lesson plan for the phases of the moon.
The methods implemented by the ancient Greek people to find the circumference of the Earth were simply amazing, especially when you see how accurate they were.
So many space missions are never realized because of finances, politics, or technical limitations. Galileo somehow faced all of these and came through with some amazing science on Jupiter.
Explore Mars' two satellites: Deimos and Phobos and their role in the future of human exploration of Mars. Find facts about the mysterious Martian Moons.
Though it may be hard to imagine a world without the moon, many have dared to wonder. What results from its absence has more profound effects than we could have known.
This is the fourth page of a series of guides to the night sky for beginners. Here, I look at the most prominent objects other than our Moon and the stars, which can be easily seen in the night sky.
Dark matter is one of the current mysteries in physics. We don't know what it actually is so how do we know it's there?
Another recent development in astronomy, though this one is full of mystery. What are these bursts and what implications do they raise?
Following the Apollo Space Program came the era of the Space Shuttle. After over 30 years of service to the United States including a total of 135 missions the Space Shuttle program officially ended on July 21st, 2011.
Talking about the early Universe is a difficult proposition, with so many competing factors we have to take into account. Then throw in inflation, black holes, and holograms and we got complexity.
Through famous for his namesake, the Kepler Space Telescope, Johannes Kepler is more renowned for his Three Planetary Laws. It was through the proof of the First that his skill was made plain.
The North Star is one of the most famous stars in the sky, even though it is not the brightest star. What kind of star is the North Star, and why is it so special?
This is a basic guide to what you can see on the surface on the Moon - there is as much that can be seen on the Moon with a pair of binoculars, than in the whole of the rest of the sky put together.
Neil deGrasse Tyson is an astrophysicist who does scholarly research but also can explain cosmology to the average person. I provide a bio and include some quotes that reveal the inner man.
Figuring out how the moon was created is one of the deepest mysteries of archeological astronomy. We do have ideas though...
An awfully subjective topic, but take a look and see if you find something you never knew existed. Our solar system has plenty to look at.
This page is part of a series on America's first manned space program, Project Mercury. Links to all the hubs in this series can be found at the NASA Project Mercury Overview. On May 15, 1963, the final mission of NASA's Project Mercury was...
This is part of a series on America's first manned space program, Project Mercury. It presents an overview of the program and provides links to the other pages in the series, which contain more information on specific topics.
This article looks at how mankind can terraform the moon and make it habitable. We'll talk about the current conditions, what needs to change, and how we might go about doing so. Comments welcome!
A solar eclipse occurs about once every 18 months somewhere on Earth. Because of the dark shadow that is cast across our planet, much myth and superstition surrounds these naturally occurring events.
Did an “Intelligent Designer” fine-tune the universe to make it just right for human life? No! Just the opposite. Evolution has fine tuned life to fit the universe.
Over the past several decades there has been increased speculation that a supermoon may in some way effect the onset of an earthquake. Recent events in New Zealand have only added to this speculation.
Many probes have visited our closest neighbor so many times. But so rarely has a duo been utilized for such precise measurements. Read on to see what Ebb and Flow uncovered underneath the moon.
Wondering if a warp drive is possible? This article looks at a few of the possibilities for faster than light travel. We'll investigate the Alcubierre drive and the Krasnikov tube, among others.
Many objects have been seen in the sky that were found to be nonexistent. Here is one that was well-documented but alas, was something else...
Though both are ways to talk about groupings in the sky, galaxies and constellations have many distinguishing features.
Was the "Wow! Signal," captured by a SETI researcher in 1977, evidence of alien contact, and how can we respond?
The first of four basic guides to the night sky, and what can be seen with the naked eye or binoculars. This page identifies the many kinds of objects you can see when you look up at the night sky
Do you usually wonder what the sun is made of? Well, read about the parts of the sun and their importance. See also the features & components of the solar, including gases and other elements.
Before New Horizons, little was known about Pluto's moons. Now, we are witnessing a complex picture forming around them that will intrigue for years to come.
Like the chicken or the egg debate, this has two sides that are determined they are right. Here is the evidence we have, and no easy answers are to be found.
Finding the age of the Universe is like completing a puzzle without knowing the big picture. We have many clues, but sometimes pieces can be misleading...
Bored with the 9, I mean 8, planets? Looking for some REAL cosmic fun? Well check out the moons of the Solar System in which you reside!! There are a lot of interesting tidbits...
This article summarizes the threat that asteroids and comets pose to the Earth. A short history of some of the greatest asteroid impacts on Earth is also provided.
The hunt for alien life is ramping up. Novel approaches to searching for both simple and intelligent extraterrestrials is being driven by new technology and ideas....
When we look at the universe as a whole, we attempt to find anything that can be thought of as symmetrical. These clues reveal much about what is all around us.
Recently, scientists have become concerned about the celestial movements of asteroids and comets—so much so that they have set up several observatories around the planet to track these objects.
The Earth has an exceptionally large moon compared to the size of other planets' moons. Start exploring the celestial sphere by observing our beautiful natural satellite.
The remains of comet Encke give rise to some unusually bright meteors best seen on moonless nights between October and December.
Inspired by its predecessors, the Cassini-Huygens mission aims to solve many of the mysteries surrounding Saturn.
Astrophysics has provided us with countless wonders in the Universe. Here is the next one though, and detecting one will prove to be more than a challenge.
Man has always been fascinated by the sky. Yet space exploration in earnest did not begin until the 20th century. A recap of man's remarkable achievements in search of new frontiers.
The U.S. space program has chosen a second group of astronauts to fly to Mars. In June 2017, NASA had 20 adventurer-scientists training for the journey. It is an exciting time!
A description of the role time plays in the birth, life, and death of the universe; a description of what exists beyond the universe boundary; the role of dark energy.
These distances are measured in degrees and radians. The angular diameters of these objects are normally very small; therefore, it is better to represent them in degrees, arcminutes and arcseconds.
Dr. Robert Goddard was an American physicist, engineer, inventor, and professor, mostly known for being the creator of the first liquid-fueled rocket.
A black hole is a region of spacetime centred on a point mass called a singularity. A black hole is extremely massive and thus has an immense gravitational pull, which is in fact strong enough to prevent light escaping from it.
We've been watching the dramatic New Horizons flyby of Pluto over the past few weeks, and many people are saying, "Come on, REALLY. That's a PLANET!"
Learn the most tantalizing facts about this toxic, hellish world that's ironically known as Earth's sister planet!
Though no one knows for sure where the water on Earth came from, many look to comets for answers. But are we looking in the right place?
How to explore the night sky the old way by using star charts instead of computer softwares. You will enjoy this fascinating hobby more by using the traditional method to find important stars.