Astronomers Find Rare 5-Star System


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An illustration of two contacting stars — part of the newly discovered bizarre five-star system.

Scientists have discovered an absolutely bizarre star system about 250 light years away, in the constellation Ursa Major.

The system (officially known as 1SWASP J093010.78+533859.5) features five stars that are all gravitationally bound together. Two orbit each other in what’s called a contact eclipsing binary, meaning they’re so close together that they actually share an atmosphere, with gases flowing between them.

Another two stars also orbit each other, but at a much greater distance — about 1.8 million miles, which is more than twice the diameter of the sun. Another star hangs out near that pair, but doesn’t appear to orbit them.

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Systems that include five stars gravitationally bound together are rare, though not unprecedented (astronomers have actually found systems that include as many as six stars). But this is the first one ever found that includes multiple pairs of stars orbiting each other.

The discoverers of the strange system — a team of astronomers from Open University in the UK and elsewhere — presented all these discoveries in a new paper published in the journal Astronomy & Astrophysics. Thanks to George Dvorsky at io9 for bringing it to our attention.

Source: vox.com

Hubble Space Telescope turns 25 and Here are some of the Most Amazing Pictures Taken by it


Hubble Space Telescope marks 25th anniversary in orbit this week. So, There are some  best images taken by Hubble Space Telescope during its 25 years journey. These Images are 100% real and contains no CGI

Hubble has traveled 3.4 billion miles, circling Earth nearly 137,000 times and making more than 1.2 million observations of more than 38,000 celestial objects, according to the Space Telescope Science Institute in Baltimore. The most distant objects spotted by Hubble — primitive galaxies — are some 13 billion light-years away and date to within 400 million or so years of the universe’s origin, known as the Big Bang.

Hubble provides an average of 829 gigabytes of archival data every month, according to the institute. Altogether, Hubble has produced more than 100 terabytes of data.

Some of the images have description about it. if anyone wants to read image description just click that image. and  Enjoy……

Image Credit : hubblesite.org

Source:Fox news

Our star is five billion years younger than most in the Milky Way


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Our sun is nearly 4.5 billion years — which means it missed the charming initial years of the Milky Way galaxy. If you were standing on a planet nearly about 10 billion years ago, when the Milky Way was pretty young, the night sky would have appeared very different. The image below is an artist’s impression of the night sky on a planet in a relatively young Milky Way-type galaxy, the way our galaxy was 10 billion years ago. You can see “the sky are ablaze with star birth. Pink clouds of gas harbor newborn stars, and bluish-white, young star clusters litter the landscape,” as NASA explains.

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Image Credit: NASA/ESA/Z. Levay (STScI)

A recent study of young galaxies like our own demonstrates that as these galaxies slow down creating stars, they also stop developing as quickly in general. Which is quite logical. NASA explains:

“Astronomers don’t have baby pictures of our Milky Way’s formative years to trace the history of stellar growth so they studied galaxies similar in mass to our Milky Way, found in deep surveys of the universe. The farther into the universe astronomers look, the further back in time they are seeing, because starlight from long ago is just arriving at Earth now. From those surveys, stretching back in time more than 10 billion years, researchers assembled an album of images containing nearly 2,000 snapshots of Milky Way-like galaxies. The new census provides the most complete picture yet of how galaxies like the Milky Way grew over the past 10 billion years into today’s majestic spiral galaxies. The multi-wavelength study spans ultraviolet to far-infrared light, combining observations from NASA’s Hubble and Spitzer space telescopes, the European Space Agency’s Herschel Space Observatory, and ground-based telescopes, including the Magellan Baade Telescope at the Las Campanas Observatory in Chile.”

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Above is a selection of Hubble Space Telescope photos, displaying how galaxies similar to our own developed over time.

Source : Physics-astronomy

[Video] Space’s 10 Most Gigantic Disasters


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Here are the 10 Most Biggest Explosions and Impacts Ever Known in Space.

Enjoy the video…

Source : Hybrid Librarian (Video Uploader)

Hubble Space Telescope Views Globular Cluster Messier 22


The crammed centre of Messier 22

This newly released Hubble image shows Messier 22, the brightest globular cluster visible from the northern hemisphere.

A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite. Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers.

Messier 22 is located in the constellation Sagittarius, approximately 10,400 light-years away.

It was the first globular cluster to be discovered. German astronomer Johann Abraham Ihle found it on August 26, 1665, while observing Saturn.

The cluster, also known as M22 or NGC 6656, has a diameter of about 70 light-years and half a million solar masses.

According to astronomers, Messier 22 orbits the galactic center once every 200 million years.

The cluster is an easy object for the naked eye to see. Despite its relative proximity to us, the light from the cluster’s stars is not as bright as it should be as it is dimmed by dust and gas located between us and Messier 22.

As they are leftovers from the early Universe, globular clusters are popular study objects for astronomers.

Messier 22 has fascinating additional features: six planet-sized objects that are not orbiting a star have been detected in the cluster; it seems to host two black holes.

The cluster is one of only three ever found to host a planetary nebula – a short-lived gaseous shells ejected by massive stars at the ends of their lives.

Source : Sci-news

Massive Exoplanet Evolved in Extreme 4-Star System


According to a team of astronomers headed by Dr Lewis Roberts from NASA’s Jet Propulsion Laboratory in Pasadena, an extrasolar gas giant called 30 Arietis Bb (30 Ari Bb) is the second known example of a planet residing in a system with four stars.

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Artists conception of the 30 Ari star system. In the foreground is the primary star about which the massive exoplanet orbits. The primary’s newly-found binary partner, a red dwarf, can be seen in the upper left and the secondary binary system can be seen to the upper right.

While 30 Ari Bb was known before, it was thought to reside in a system of three stars, not four.

The system, called 30 Ari, is located in the constellation Aries, approximately 136 light-years away.

“Star systems come in myriad forms. There can be single stars, binary stars, triple stars, even quintuple star systems. It’s amazing the way nature puts these things together,” Dr Roberts said.

The planet itself is enormous, with 9.88 times the mass of Jupiter. It orbits its primary star, 30 Ari B, every 335 days. This star has a relatively close partner star, which the planet does not orbit.

The pair, in turn, is locked in a long-distance orbit with another pair of stars about 1,670 AU away.

“It’s highly unlikely that this planet, or any moons that might circle it, could sustain life,” Dr Roberts and his colleagues said.

The first four-star planet, Ph1b, was discovered in the star system Kepler-64 (KIC 4862625) in 2013 by astronomers using data from NASA’s Kepler mission.

The latest discovery, reported in the Astronomical Journal (arXiv.org preprint), suggests that exoplanets in quadruple star systems might be less rare than once thought.

The similarity between Kepler-64 and 30 Ari is that both systems are quadruples consisting of two relatively close pairs that are widely separated.

In fact, recent studies have shown that this type of star systems is itself more common than previously believed.

“About 4% of Sun-like stars are in quadruple systems, which is up from previous estimates because observational techniques are steadily improving,” said team member Dr Andrei Tokovinin of the Cerro Tololo Inter-American Observatory in Chile.

The scientists also reported on a triple-star planetary system, HD 2638, which hosts a so-called hot-Jupiter.

This giant planet, named HD 2638b, orbits its primary star tightly, completing one lap every 3 days.

Source : sci-news.com

New 3D Map of Supernova Cassiopeia A Reveals Bubbly Interior


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Scientists have taken a closer look at one of the most well studied supernova remnants in our galaxy, Cassiopeia A. They’ve created a new 3D map of its interior that reveals surprising, never-before-seen details about the supernova. A photograph of Cas A from NASA’s Chandra X-ray Observatory reveals the supernova remnant’s complex structure. (Photo : NASA/CXC/SAO)

Scientists have taken a closer look at one of the most well studied supernova remnants in our galaxy, Cassiopeia A. They’ve created a new 3D map of its interior that reveals surprising, never-before-seen details about the supernova.

Cassiopeia A, or Cas A, was first created about 340 years ago. That’s when a massive star exploded in the constellation Cassiopeia. The extremely hot and radioactive material that streamed outward from the stars core mixed and churned outer debris, creating a supernova remnant.

That said, examining the complex physics behind these explosions is difficult to model. That’s why researchers have carefully studied relatively young supernova remnants like Cas A to investigate key processes that drive these stellar explosions.

To create the new 3D map, the researchers examined Cas A in near-infrared wavelengths of light using the Mayall 4-meter telescope in Arizone. Then, spectroscopy gave them the expansion velocities of extremely faint material in Cas A’s interior, which provided them with the third dimension.

“We’re sort of like bomb squad investigators,” said Dan Milisavljevic, one of the researchers, in a news release. “We examine the debris to learn what blew up and how it blew up. Our study represents a major step forward in our understanding of how stars actually explode.”

The new 3D map reveals bubble-like cavities within the exploded star. These cavities were likely created by plumes of radioactive nickel generated during the stellar explosion. Since the nickel will decay to form iron, it’s likely that Cas A’s interior bubbles will be enriched with as much as a tenth of a solar mass of iron.

The findings reveal a bit more about the interiors of supernovae. This, in turn, may help inform future studies of these exploded stars.

The findings are published in the journal Science.

Source : Scienceworldreport

[Video] A Must Watch Video of Black Hole which can Blow your Mind !!!!!


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A Black Hole is a location in space that possesses so much gravity, nothing can escape its pull, even light. We Can’t even see them but they are the Most Powerful and Dangerous things in the Universe. They Governs the whole Structure of Galaxies and Universe.

See this Incredible Video of Black Hole Comparison :-

Source : morn1415 (Youtube Video Uploader)

Forget dark matter, STRANGE matter could be lurking somewhere in the universe


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  • Scientists at the National Institute for Space Research in Brazil say an undiscovered type of matter could be found in neutron stars
  • Here matter is so dense that it could be ‘squashed’ into strange matter
  • This would create an entire ‘strange star’ – unlike anything we have seen
  • However, the exact properties of strange matter are unknown
  • If it exists, though, it could help scientists discover ripples in space-time known as gravitational waves

Neutron stars are among the densest objects in the universe – just a spoonful of matter from one of them would weigh more than the moon.

But inside these remarkable stellar objects, which are no bigger than a city on Earth, a remarkable process might be taking place.

Scientists have revealed their matter might become so squashed that it turns into ‘strange matter’ – and observing so-called strange stars could unlock some of the secrets of the universe.

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Scientists at the National Institute for Space Research in Brazil say an undiscovered type of matter could be found in neutron stars (illustration shown). Here matter is so dense that it could be ‘squashed’ into strange matter. This would create an entire ‘strange star’ – unlike anything we have seen

The latest theory was proposed by Dr Pedro Moraes and Dr Oswaldo Miranda, both of the National Institute for Space Research in Brazil.

They say that some types of neutron stars might be made of a new type of matter called strange matter.

What the properties of this matter would be, though, are unknown – but it would likely be a ‘liquid’ of several types of sub-atomic particles.

Source: daily mail

[VIDEO] 209 Seconds That Will Make You Question Your Entire Existence


Source :BuzzFeedBlue