The remains of comet Encke give rise to some unusually bright meteors best seen on moonless nights between October and December.
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.
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.
Astronauts living on the International Space Station help with the study of human survival and endurance in space. The challenges they encounter are unique due to the lack of gravity that we take for granted on Earth.
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.
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?
The study of exoplanets is a relatively new field of astronomy. There are four main methods used by astronomers to discover new exoplanets: direct imaging, the radial velocity method, astrometry and gravitational microlensing.
Inspired by its predecessors, the Cassini-Huygens mission aims to solve many of the mysteries surrounding Saturn.
The Summer Triangle is the name given to an area of the night sky that contains several features of interest for the amateur astronomer.
Photos and fun information about some of the coolest moons in our solar system besides our own Moon.
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."
Universe is an amazing place, full of stars, planets and what not. Today we're looking up at 5 amazing stars of the universe.
The first landing on a comet proved to be more of a challenge than anyone thought it would be, but the science uncovered has been monumental and justifies the struggle.
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.
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.
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.
Another astronomical mystery without an easy solution. Did astronomers find an unknown planet in the 1830s?
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...
Black holes, mysterious objects of the universe, have many different types. Do you know the differences between them all?
Dark matter is currently an unsolved problem within physics. What dark matter is made up of is a complete mystery. How do scientists know that dark matter really exists?
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.
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.
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.
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.
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.
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
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
Space exploration is dangerous business. Despite hard training and dedication, these ten astronauts perished before making it into outer space.
The rotation of the material around a black hole is just a visible spin. Beyond that, special tools and techniques are required to find out more about the spin of a black hole.
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.
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.
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.
A solar flare in 1859 caused power spikes and disrupted the world's telegraph system. How much damage could a massive solar flare do to power and communications today?
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.
Much is discussed about Saturn and Titan, but the minor moons of Saturn deserve their moment in the spotlight.
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.
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.
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
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.
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.
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.
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.
Though largely abandoned, the idea of a missing planet or asteroid field between Mercury and the Sun continues to intrigue us.
The act of observation changes the way we see the universe, but we try to understand it. As it evolves, change keeps occurring until everything is equal. Then time can no longer progress and it stops. When time stops, space becomes meaningless. Space can only exist throughout the passage of time.
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.
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.
It was the decision that angered Pluto fans everywhere; even the ones who never realized their fondness for the small celestial body. The planet Pluto is dead. She's now officially a dwarf world.
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!"
While still going through growing pains, SpaceX is sure to be the best future for private space travel.
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!
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.
In recent years humanity's passion for space exploration has been rekindled. Thanks to the efforts of enthusiastic entrepreneurs and governments we expect great things in 2018.
Thought by many to be engines of destruction, the act of consuming matter may in fact bring about creation.
While there were many misses in this field, they deserve recognition as steps towards a sound method for exoplanet hunting.
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.
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.
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...
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?
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 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.
Astronomy is full of historical examples of mysterious objects seen but weren't really there. Did Lassell actually spot the rings of Neptune?
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.
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...
New celestial objects in the solar system are always intriguing. What are these new classifications and their implications for us?
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.
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.
Do you know the history of Leo the Lion? Can you locate it in the sky? Find out the answers to these questions and learn some interesting facts about this ancient constellation.
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!
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.
In this article, you will find a comparison of the Sun's size with the largest stars in the Milky Way. You will really be surprised how big some of these stars are with respect to the Sun or how small the Sun is to them.
Learn the most tantalizing facts about this toxic, hellish world that's ironically known as Earth's sister planet!
So, there's a flat Earth society, a round Earth society, but why have we eliminated the possibility of the Hollow Earth?
Though it lies 26,000 light years away, A* is the closest supermassive black hole to us. It is therefore our best tool in understanding how these complex objects work.
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.
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.
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.
Dr. Robert Goddard was an American physicist, engineer, inventor, and professor, mostly known for being the creator of the first liquid-fueled rocket.
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.
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
Here's another star, Mira the wonderful, which is literally the only shooting star out there. It has some really amazing qualities, and you'll know why it's name is so appropriate.
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 and components of the solar, including gases and other elements.
Based on present technology and the knowledge of the requirements for human survival, intergalactic travel is being considered among scientists as the endurance of humans in space is researched. Inhabiting Mars may be the next step, but can we go even farther?
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.
Is Nibiru, the legendary Planet X, a real threat bring to doomsday to our planet? Could it be closer than we feared?
Another recent development in astronomy, though this one is full of mystery. What are these bursts and what implications do they raise?
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.
Was the "Wow! Signal," captured by a SETI researcher in 1977, evidence of alien contact, and how can we respond?
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.
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.
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?
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.
No matter if we look out toward the heavens, or if we look deep within atoms and molecules, we will find mostly empty space. I'll take you on an illustrative tour, both outward and inward, to explain why the universe and all matter is basically empty.
None of us will make it to another star system. But that doesn't mean we can't see what one looks like. Starshot is that chance.
Black holes are engines of destruction unlike anything we are familiar with. One of their specialties is a tidal disruption event, and here we will delve into the mechanics of it.
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
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.
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....
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.
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.
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.
The return of Comet Halley in the 1980s sparked a huge spike in comet science. None was as successful as Giotto, the ESA's mission to explore multiple comets.
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.
Shooting stars are a meteorological and astronomical occurrence which can be quite beautiful to watch. If you're curious about what they are and where they come from, read on!
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.
Was the Big Bang a single event, or had the development of the universe failed repeatedly until the one we now live in? Is this the final version or does the process occur an infinite number of times into eternity?
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.
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?
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!
Not something we think about often, but these waves would solve many problems in physics. Now, how to find them...
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.
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?
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.
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.
We waited for nearly a decade but New Horizons accomplished its primary mission of rendezvousing with Pluto. What secrets did it uncover?
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.
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!
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.
Though Pluto is no longer a planet, few know about the deep-space objects that were found which sparked that change.
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.