Planetary Nebula Abell 39

Let's look at a planetary nebula nearly perfect spherical shape, whose name Abell 39 (Abell 39).

Today in our galaxy "Milky Way" is known more than 1500 planetary nebulae that are astronomical substance consisting of ionized gas shell and the central star - a white dwarf. Planetary nebulae are fast in astronomical terms the phenomenon, which lasts only a few tens of thousands of years. For comparison, the life of the parent star is a few billion years.

Clarification of the Milky Way's mass found more dark matter

A team of scientists from Japan initiate new, more accurate measurements of the distance from the solar system to the center of our galaxy, the Milky Way, which was found to be 26,100 light-years, and the rate of rotation of our galaxy near our solar system, which was found to be 240 km / s. Previous data on the speed of our galaxy is 220 km / s, which means that the mass of our galaxy - and especially the contribution, made ​​by dark matter - about 20% higher than previously thought.

Find the nearest star to the central black hole in the galaxy

An international team of researchers, with Spanish contribution, has found the closest star to Sagittarius A *, the black hole four million times the mass of the Sun located in the center of the Milky Way. It is the star S0-102; it takes 11.5 years to complete one orbit around the black hole. The work will know how to operate the law of gravity in extreme environments, according to the journal Science.

Star cluster for the first time found a pair of black holes

M22 star cluster in our galaxy is located at a distance of 10,000 light-years from Earth. Administer to make a discovery by observing a super-large array radio telescopes located in New Mexico.

U.S. astronomers have detected about two separate black holes in the same star cluster M22, located in the constellation Sagittarius. The paper was published in the journal Nature, a summary of its results ScienceNow.

New Galaxy opens a window into the early universe

A team of astronomers from the "Johns Hopkins University (Johns Hopkins University) stated that this galaxy may well be the most distant ever discovered, according to known as MACS 1149-JD, it gives an idea of the most distant epoch in cosmic history, as the light coming from the faint galaxies shine on, when the universe was only 500 million years - or 3.6% of its current age.

NASA showed massive halo of hot gas surrounding our galaxy

In the U.S., NASA scientists have once again reminded people how big the universe - to show how small our Milky Way galaxy, if it is placed in the newly discovered halo - a cloud of hot gas that extends for hundreds of thousands of light years.

Hubble Telescope detected the farthest galaxy and never before seen

The Hubble Space Telescope has photographed what is considered the most distant galaxy ever observed a time travel of 13,700 million light years, when our universe was only 500 million years, said Wednesday the space agency NASA.

The image of the galaxy, a red spot in the middle of a huge group of young galaxies, represents the first time the Hubble scrutinizes the border known as the cosmic Dark Age, when the expanding universe went from being a big void to cluster galaxies, stars and gas giant clusters.

The Odd Couple of galaxies in space travel

Two very different galaxies drift through space at the same time in this image taken by the Hubble Space Telescope. The curious pair of galaxies Arp 116 is called. Arp 116 is composed of a giant elliptical galaxy known as Messier 60 (or M60) and a much smaller spiral galaxy, NGC 4647. The spiral galaxy NGC 4647 light blue is about two-thirds of M60 in size and much lower mass - about the size of our galaxy, the Milky Way.

A Family Portrait of Galaxies

Two very different galaxies attribute in this family portrait taken by the NASA / ESA Hubble Space Telescope, together forming a exclusive galaxy pair called Arp 116. The image shows the dramatic differences in size, structure and color spiral and elliptical galaxies between.

Arp 116 is composed of a giant elliptical galaxy Messier known as 60, and a much smaller spiral galaxy, NGC 4647.

Seeing the Birth of the Universe in an Atom of Hydrogen

Stars can unveil the history of our universe, Currently Estimated to be 14 billion years old. The beyond away the star, the older it is - and the oldest stars are the most difficult to detect. Current telescopes can only see galaxies About 700 million years old, and Only When the galaxy is unusually large or as the result of a big event like a stellar explosion.

Now, an international team of scientists led by researchers at Tel Aviv University have developed a method for detecting galaxies of stars That Formed When the universe was in its infancy,

Multi-tasking Supernova: stellar explosion galaxy far-off

Nature hath no fury like a dying star - and astronomers could not be happier...

An international research team, led by Edo Berger of Harvard University, made the most of a dying star's passion to probe a distant galaxy some 9.5 billion light-years distant. The dying star, which lit the galactic scene, is the MOST distant stellar explosion of its kind ever Studied. According To Berger, "It's like someone turned on a flashlight in a dark room and allowed us to see suddenly, for a short time, what this far-off galaxy looks like, what it is composed of."

‘Cry' of a ragged Star messenger New Era for Testing Relativity

Last year, astronomers discovered an inactive black hole in a distant galaxy that explodes after grate and consuming a passing star. Identified Researchers now have a distinctive X-ray signal in the days Observed Following The explosion that comes from matter on the edge of falling into the black hole.

This tell-tale signal, called a quasi-periodic oscillation or QPO,

Two planets very close to each other

Two exoplanets, a rocky like Earth and other gaseous like Neptune, evolve to a very small distance from each other, a discovery that intrigues astronomers who had never observed a similar phenomenon.

It is like imagining that instead of a full moon rising on the horizon, lifted a giant gas planet appears to be three times bigger than this, say the researchers, whose work was published Thursday in the U.S., in the online edition of the journal Science.

From the center of the galaxy Ghost beams of gamma rays rising

The center of the Milky Way shows little activity in contrast. It was not always so peaceful. New evidence of ghost beams of gamma rays suggests that the central black hole of our galaxy was much more active in the past.

"These jets are faint ghost or just a sequel to what existed for millions of years," said Meng Su, an astronomer at the Harvard-Smithsonian Center for Astrophysics (CfA), and author of a new article in the Astrophysical Journal. "But it reinforces the evidence that there was an active galactic nucleus in the relatively recent past of the Milky Way," he added.

The discovery of an exoplanet

A reacharger group of European astronomers has announced the discovery of an exoplanet particular. Is larger than Jupiter and may be gaseous, so it does not look like Earth. But what is its origin awareness. In fact, that distant world was not formed in our galaxy, but entered it, along with its star, about 9,000 million years. The finding is published this week in Science.

"The discovery is very exciting, says Rainer Klement, one of the authors of the study, for the first time, astronomers have detected a planetary system in a stellar group of extragalactic origin.

A galaxy settled by traveling planets

The endurance of planets lonely worlds turn around a star, but float alone traveling in space. Far from being an exception, these planets, which may have been expelled from their systems, are very numerous. Researchers from the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), an independent laboratory of Stanford University in Palo Alto, California, believe that, in fact, there are 100,000 for every star that exists in our galaxy. The Milky Way is full.

Our solar system is not protected from the rest of the galaxy. Why?

Fresh explanation of the solar system's borders have unwavering that the Sun moves through space at a speed lower than estimated so far, prevent form the bend over shock that evidently marked the border between our solar system and interstellar medium. The discovery suggests that the protective boundary that separates our solar system from the rest of the galaxy that has no bend over shock, which could have implications for how much radiation (in the form of galactic cosmic rays) coming into our solar system.

Every galaxy has a black hole

Every galaxy has black holes at their center. While the black hole is active, traps and swallows all matter around it, like a whirlpool. When he is not able to swallow again, the matter continues to revolve around him, but not within. The galaxies whose black hole is still active called active galaxies.

Active galaxies are famous by their shape and the large whole of radiation they emanate. The black hole core is surrounded by a bright disc of matter, dust and hot gas. It is called the accretion disk, and spirals while emitting high energy radiation. Since the poles, the black hole space launches huge jets of particles, which can measure thousands of light years in length. The Milky Way galaxy was also active in the past.

An elliptical spiral galaxy changed

The U.S. space agency NASA captured the evolution from an elliptical spiral galaxy, a finding that will help to understand galaxy evolution. With help of the Galaxy Evolution Explorer from NASA, the researchers found how the galaxy NGC 3801 is losing some of the cold gas inside symptom of this change. It has long been known that gas-rich spiral galaxies like our Milky Way are contracted to create elliptical galaxies as observed in the study, with a small population of stars.The process that guides the great transformation of young galaxies spiral to elliptical galaxies is the rapid loss of cold gas, which serves as fuel for the formation of new stars. Experts believe they have found that feature in the NGC 3801.

A dwarf galaxy that is about 70 million light years from Earth

Most galaxies in the universe are classified into three forms: elliptical, disc-and usually flattened, and irregular spiral arms. That is so strange Leda 074886, a dwarf galaxy that is about 70 million light years from Earth is rectangular or, as astronomers have discovered, like a bright emerald. 

"It's one of those things that just make you smile because it should not exist or, rather, did not expect to exist," says Alsiter Graham (Swinburne University of Technology in Melbourne, Australia), lead researcher.