Astronomers used the Hubble Space Telescope and gravitational lensing to look at MACS 0647-JD

The Decades of the Hubble Space Telescope

The grand old guy is still the king of the telescopes

The development of the Hubble Space Telescope marked the beginning of a new age of the human journey to the beginning of space and time

Astronomy News – The history of human science and astronomy is ripe with stories of defining moments that opened new avenues of thought and belief in a universe humans had never experienced or dreamed of, before. The moment humans first looked upward into a sky they could neither understand nor comprehended, the history of stargazing and astronomy was written. The story of the first images humanity glimpsed through the instruments of the Hubble Space Telescope is just one defining moment that has opened roads of thought and belief astronomers and scientists had never dreamed before. The 20 years since these first Hubble images has defined a period of human history that will be remembered for astronomy milestones that opened never-before-seen parts of the universe to humans and showed us glimpses of things we never dared imagine. The recent refurbishing of the Hubble Space Telescope has allowed astronomers to look even further back in space and time to the beginning of the universe and along with the James Webb Space Telescope will soon take humanity on a journey to the beginning of space and time.

Hubble has allowed astronomers to determine many things about the universe

The launch of the Hubble Space Telescope into orbit around planet Earth on April 24, 1990, marked a moment in human history as pivotal as the moment Galileo first looked through his telescope at the world he had never seen before. During about 110,000 orbits the Hubble Space Telescope has helped about 4,000 astronomers from around the world takes over 570,000 images of about 30,000 celestial objects that have helped astronomers ask questions that will help define the future of human space studies for centuries to come. The information and data collected by the studies astronomers have conducted of the universe with the Hubble Space Telescope has also provided content for about 8,700 scientific papers and 648 journal articles, opened windows giving humans a view of parts of the universe we have dreamed of seeing, and the latest astronomy and science books.

The early universe was likely a place unlike anything we can picture

The Hubble Space Telescope has allowed the human journey to the beginning of space and time to travel closer and closer to the Big Bang

To date, the Hubble Space Telescope has shown us a view of the most distance celestial object we have viewed so far, about 13.2 billion years in the past. This view is about 150 million years further back in space and time than any previous view humans have seen of the universe. At this time in the lifespan of the universe, astronomers believe the universe was only about 500 million years old and the echoes of the big bang could still be heard.

The Hubble Space Telescope has also helped astronomers determine a number of different things about the universe, like the presence of supermassive black holes at the center of galaxies, planet-forming processes at work in the universe, and the presence of the first organic molecule scientists have found outside our solar system.

The James Webb Space Telescope will take the human journey to the beginning of space and time back to the time when it all began

The next twenty years of human space discovery will see the James Webb Space Telescope take up the torch-of-discovery the Hubble Space Telescope has carried for the past two decades. The grand old boy will still take astronomers on journeys of discovery for years to come, and show us views of reality that will open our eyes to the wonder of it all. The James Webb Space Telescope has yet to be launched into space and until this happens the Hubble Space Telescope is still the baddest telescope in the solar system.

Check out the newest astronomy website at http://astronomytonight.yolasite.com/.

13.2 billion years ago the universe was a totally different place

Read about NASA’s Messenger spacecraft and its mission to Mercury

Have you heard about the recent meteorite that exploded near the Ural Mountains

Read about the supernova astronomers are studying looking for a black hole they think was created during the explosion

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Searching the Night Sky for a Supernova

Astronomers are looking at NGC 3982 and other galaxies for a supernova to study

NASA and amateur astronomers around the world search for a new supernova to name
(NASA images) If you see a supernova, it could be your big moment in life?

Put your name in the history books

Astronomy News – The Milky Way use to be thought of as a spiral galaxy, but recently collected data seems to suggest to astronomers that the Milky Way could, in fact, be a barred galaxy. Either way, the human “Journey to the Beginning of Space and Time” has revealed to astronomers a seeming infinity of galaxies beyond the celestial horizon we view from Earth. Spiral galaxies abound in amazing numbers in the universe, elliptical and barred galaxies have been viewed in endless numbers beyond the celestial horizon, and none of these galaxies look exactly the same. Beyond the horizon we view from Earth, the universe astronomers view goes on and on, without an end in sight, but everything we humans have experienced has an ending and beginning. Can the universe truly go on forever, or is it conceivable that somewhere beyond the celestial horizon there exists boundaries beyond which the known universe ends and another reality exists?

Astronomers using the Hubble Space Telescope recently journeyed to spiral galaxy NGC 3982 to look for clues to these questions and others that have fascinated humans since the time of the first-star gazers. A face-on spiral galaxy first discovered by William Herschel on April 14, 1789, NGC 3982’s spiraling arms are lined with pink star-forming regions of space and time glowing with hydrogen, newborn blue star clusters, and star dust capable of providing the raw material for future generations of stars. Astronomers believe hidden in the nucleus of NGC 3982 is a generation of older stars, which become more densely packed as the distance to the center of the nucleus of NGC 3982 lessens. NGC 3982 is an amazing 68 million light-years distant in the constellation Ursa Major and is currently speeding away from the center of the Milky Way Galaxy at a recession velocity of 1187 km/s. NGC 3982 is also a smaller spiral galaxy and spans about 30,000 light years, which is only about one-third the size of our own Milky Way Galaxy.

Astronomers use the Hubble Space Telescope

Astronomers are looking at spiral galaxy NGC 3982, and other similar galaxies, in the hopes of viewing a celestial event of amazing intensity and power, a supernova. They’re currently using the instruments on the Hubble Space Telescope to look for a supernova in the spiral and other galaxies, but soon the James Webb Space Telescope will add its star gazing ability to this job. They want to check current theories on how supernova occur and possibly the types of stars that end their lives in these spectacular explosions. Their search will be primarily in the bright blue knots in NGC 3982’s spiral arms, but they’ll certainly expand their search as the human “Journey to the Beginning of Space and Time” continues to expand.

If you love astronomy, check out my latest astronomy site at http://astronomytonight.yolasite.com/, and then drop me a line and let me know what you think?

Learn how NASA astronomers are planning on detecting extraterrestrial moons orbiting distant suns https://spaceshipearth1.wordpress.com/2013/12/31/searching-for-extraterrestrial-moons/.

Read about the latest news on life beyond Earth https://spaceshipearth1.wordpress.com/2013/12/25/the-search-for-life-beyond-earth-takes-a-turn-at-jupiter/.

Take a look at the latest natural color images taken by the Cassini spacecraft https://spaceshipearth1.wordpress.com/2013/12/22/cassini-spacecraft-show-views-of-the-solar-system-in-natural-color/.

An Infinite Number of Galaxies?

Are there really an infinite number of galaxies in the universe
Just how many galaxies is an infinite number, anyway?

Just what do we humans mean by infinite galaxies?

So many planets, so much diversity! Can life really be limited to Earth?

Lots and lots of galaxies

Astronomy News – The galaxies you’ll view during your “Journey to the Beginning of Space and Time” are like grains of sand on the beach, or snowflakes, with no two galaxies looking exactly the same to viewers. Astronomers have also viewed a number of different types of galaxies and they have given each a specific name, usually based on the overall shape of the galaxy. Composed of millions or even billions of individual stars, each particular type of galaxy viewed, so far, has also been given a designation, or name, by which we all can tell the difference between the individual galaxies in the infinity of galaxies we view in the night sky above us. It was Edwin Hubble who first did the work with photographic plates taken during the early part of the twentieth century that allowed him to determine the nebulous objects astronomers had been viewing for years were actually vast islands of stars we call galaxies. Edwin Hubble also cataloged the galaxies he viewed into three major classes, or types, according to their physical shape.

Within the pinwheels of this spiral galaxy new planets and possibly new life could be born

A percentage of the galaxies will resemble huge pinwheels and have been given the name spiral galaxies by astronomers viewing these objects. Spiral galaxies are generally composed of a bright central nucleus with older stars, with two sweeping arms of younger stars, open clusters, and diffuse nebulae unfolding in space and time. The Milky Way in which we reside is one such spiral galaxy among the multitudes of such galaxies in the universe and Sol is located about two-thirds of the way from the center of the galaxy.

Astronomers have broken down spiral galaxies into five subclasses of spiral galaxies, according to how tightly the arms of a galaxy are wrapped around the nucleus of the spiral galaxy in question. Spiral galaxies with the tightest arms are Sa spiral galaxies, Sb spiral galaxies are next in order, with more loosely armed Sc, comparatively rare Sd, and S0 spiral galaxies almost appearing to be a transitional form between spiral galaxies and another type of galaxy.

NGC 1365 is a barred galaxy astronomers have been studying

Barred galaxies exhibit an odd, bar-like feature passing through the nucleus of the galaxy, and the spiral arms of barred galaxies start to unwind from the ends of the central bar, rather than from the nucleus of the galaxy. Barred galaxies are also classified according to the tightness of the spiral arms and have designations SBa, SBb, and SBc.

Centaurus is an elliptical galaxy with an easily seen barlike feature

Elliptical galaxies are the most plentiful type of galaxy we have viewed during the human “Journey to the Beginning of Space and Time.” Elliptical galaxies actually have no hint of spiral arms and appear as huge, oval spheres with no discernible internal structure of any kind. Elliptical galaxies are classified according to how round they appear, with E0 elliptical galaxies appearing almost perfectly spherical, E4 elliptical galaxies looking like an oddly shaped football, and E7 elliptical galaxies looking flat as compared to the other classifications. Elliptical galaxies appear to be composed mostly of older stars and you’ll notice they lack luminosity as you view them.

Barnard is an irregular galaxy with no distinct shape

Infinite is a human term

Galaxies that appear to have no distinctive shape are referred to as irregular galaxies and irregular galaxies have been viewed a lot less in the night sky than the other types. This doesn’t necessarily mean irregular galaxies appear in fewer numbers in the universe, but it does mean that the percentage of the universe we have viewed from Earth appears to contain fewer irregular galaxies than the other types.

Warren Wong.

Editor and Chief

The Human Journey to the Beginning of Space and Time.

Check out my newest astronomy site at http://astronomytonight.yolasite.com/.

Learn how NASA astronomers are planning on detecting extraterrestrial moons orbiting distant suns https://spaceshipearth1.wordpress.com/2013/12/31/searching-for-extraterrestrial-moons/.

Read about the latest news on life beyond Earth https://spaceshipearth1.wordpress.com/2013/12/25/the-search-for-life-beyond-earth-takes-a-turn-at-jupiter/.

Take a look at the latest natural color images taken by the Cassini spacecraft https://spaceshipearth1.wordpress.com/2013/12/22/cassini-spacecraft-show-views-of-the-solar-system-in-natural-color/.