مرحبا راما

لاشك ان في هذه الاية اعجازا يخص العلاقات الانسانية..وفيها درس لضبط النفس واستخدام العقل...

واتصور ان كل الايات التي تعالج قضايا النفس البشرية نجدها مذهلة عندما نتأملها.

Tens of billions of planets out there are like Earth, study finds
By Brad Lendon, CNN
November 5, 2013 -- Updated 1739 GMT (0139 HKT) | Filed under: Innovations

Could be billions of Earth-like planets
STORY HIGHLIGHTS
Astronomers used Kepler telescope data to extrapolate number of planets in Milky Way
22% of sun-like stars have possibly habitable planets, research shows
Kepler has found 3,538 planet candidates to date
(CNN) -- Ever have one of those days where you just wanna be alone, maybe have the planet to yourself?
Well, based on sheer numbers, there may be a planet just for you.
Astronomers at the University of California-Berkeley and the University of Hawaii, using data from NASA's Kepler space telescope, estimate there are tens of billions of Earth-size, possibly habitable planets in our Milky Way galaxy.
Given that there just more than 7 billion of us on this planet, that means a planet for each of us with some spares for your picky neighbors. Or a vacation planet or two for you, maybe.

آيات مذهلة من مملكة النحل :

في الواقع من خلال معرفتي في مملكة النحل وقربي منها كوني من اسرة امتهنت تربية النحل وجدت ان فيها من الآيات الإعجازية ما يذهل العقل وسوف أحاول هنا ذكر لبعض هذه الآيات المذهلة تباعا :

تخيلوا معي بان ملكة النحل هي من الناحية التشريحية نحلة عادية ولا تختلف في تركيبتها البيولوجية عن النحلة الشغالة في شيء الا في حجمها حيث تكون الملكة اكبر في الحجم والعجيب ان النحلة الشغالة تعيش لمدة اربعين يوم فقط بينما تعيش. ملكة النحل عشر سنوات تظل فيها نشيطة تحكم وتسيطر و تبيض بضعة ملايين من النحلات كل عام وهناك من يعتقد بان السر في طول عمر الملكة يكمن في الغذاء الملكي حيث لا تأكل الملكة طول عمرها أي شيء سوى الغذاء الملكي الذي تفرزه الغدد الصماء في راس النحلة الشغالة ضئيلة الحجم .

Astronomers may have found most powerful supernova
By Ralph Ellis, CNN
Updated 0407 GMT (1207 HKT) January 15, 2016


http://i2.cdn.turner.com/cnnnext/dam...xlarge-169.jpg

(CNN)An international team of astronomers may have discovered the biggest and brightest supernova ever.

The explosion was 570 billion times brighter than the sun and 20 times brighter than all the stars in the Milky Way galaxy combined, according to a statement from The Ohio State University, which is leading the study. Scientists are straining to define its strength.
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"This may be the most powerful supernova ever seen by anybody ... it's really pushing the envelope on what is possible," study co-author Krzysztof Stanek, an astronomer at Ohio State, was quoted as saying in The Los Angeles Times.


The team of astronomers released their findings this week in the journal Science. The explosion and a gas cloud that resulted are called ASASSN-15lh after the team of astronomers, All Sky Automated Survey for Supernovae, that discovered it last June.

A supernova is a rare and often dramatic phenomenon that involves the explosion of most of the material within a star. Supernovas can be very bright for a short time and usually release huge amounts of energy.

Searching for the power source
This blast created a massive ball of hot. gas that the astronomers are studying through telescopes around the world, Ohio State said. It cannot be seen with the naked eye because it is 3.8 billion light years from Earth.

There's an object about 10 miles across in the middle of the ball of gas that astronomers are trying to define.

"The honest answer is at this point that we do not know what could be the power source for ASASSN-15lh," said Subo Dong, lead author of the Science paper, according to Ohio State. He is a Youth Qianren Research Professor of astronomy at the Kavli Institute for Astronomy and Astrophysics at Peking University.

Todd Thompson, professor of astronomy at Ohio State, said the object in the center may be a rare type of star called a millisecond magnetar. Spawned by a supernova, it's a rapidly spinning, dense star with a powerful magnetic field.

Could it be a 'supermassive black hole'?
To achieve the brightness recorded, the magnetar would have to spin 1,000 times a second and "convert all that rotational energy to light with nearly 100% efficiency," Thompson said, according to the Ohio State press release. "It would be the most extreme example of a magnetar that scientists believe to be physically possible."

The question of whether a suprnova truly caused the space explosion may be settled later this year with help from the Hubble Space Telescope, which will allow astronomers to see the host galaxy surrounding the object in center of the ball of gas, Ohio State said.

If it's not a magnetar, it may be unusual nuclear activity around "a supermassive black hole," Ohio State said.

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Hubble image: Dormant black hole, in a word, is gargantuan
اكتشاف ثقب اسود عملاق

By Carma Hassan, CNN
Updated 2304 GMT (0704 HKT) February 18, 2016
(CNN)The Hubble Space Telescope has given scientists their sharpest-ever look at a known galaxy containing an enormous black hole.
التلسكوب هابل الفضائي يوفر للعلماء افضل فرصة لدراسة ثقب اسود موجود في قلب مجرة معروفة

The supermassive black hole is in a galaxy called NGC 4889, one of several in the Coma Cluster, officials said Thursday.
والثقب الاسود المذكور يقع في مجرة اسمها ngc4889 وهي واحدة من عدة مجرات تقع في مركز coma cluster كما صرح بذلك بغض المسؤولين

According to NASA, every galaxy has a supermassive black hole with "masses greater than than 1 million suns combined" at the center. It is believed that the black holes were created at the same time as the galaxy they are in.
وحسب ناسا فانه يوجد في كل مجرة ثقب اسود عملاق بكتلة تعادل كتلة مليون شمس مجتمعه تقع في مركزها . ويعتقد ان الثقوب السوداء خلقت في نفس الوقت التي خلقت فيها المجرة الموجود فيها

Even though NGC 4889's black hole measures 130 billion kilometers in diameter, you can't see it in the picture. Black holes are invisible because light can't escape their gravitational pull, according to NASA and the European Space Agency (ESA). But scientists were able to measure NGC 4889's black hole by using the velocity of the stars moving around it and found it to be one of the largest known black holes.
وعلى الرغم ان الثقب الاسود في المجرة ngc4889 بطول 130مليار كيلومتر لكنه لا يظهر على الصورة لان الثقوب السوداء خفية لا ترى لان الضوء لا يمكنه ان يتخلص من جاذبية الثقب الاسود ولذلك لا ينبعث حسب ما تقوله وكالات الفضاء الاوروبية والأمريكية لكن العلماء تمكنوا من قياس هذا الثقب الاسود من خلال استخدام سرعة دوران الكواكب التي تتحرك حول الثقب الاسود وتبين انه واحد من اكبر الثقوب السوداء المعروفة .

While this black hole used to "feast" on stars and gas, it has been dormant for billions of years and is "now so peaceful that stars are forming from its remaining gas and orbiting undisturbed around the black hole," according to a statement issued by NASA and ESA.

"Certainly, a collision with another galaxy can reactivate the black hole," said Roeland van der Marel, a WFIRST mission head at the Space Telescope Science Institute in Baltimore, where researchers work on the Hubble Space Telescope, among other missions.

WFIRST stands for Wide-Field Infrared Survey Telescope, which is NASA's new astrophysics mission with the Space Telescope Science Institute to study large regions of the sky in order to learn about planets beyond our solar system.

Are we in danger of colliding with this black hole? The answer is no -- at least not anytime soon.

"Black holes don't suck," van der Marel said. "That's a common misconception. Material that happens to be moving in the direction of the black hole falls in because gas has friction that gets eaten [by the black hole]. Once the black hole has eaten all the gas there it can just move on and it will be dormant until it gets another dose of material that it can consume."

Black holes "follow the laws of gravity," according to NASA research, meaning that unless the black hole's orbit is very close to our solar system, it would not likely impact Earth.

"If a black hole with the same mass as the sun were to replace the sun, Earth would not fall in. The black hole with the same mass as the sun would keep the same gravity as the sun. The planets would still orbit the black hole as they orbit the sun now," according to NASA.

As long as the Milky Way stays out of NGC 4889's way, we have no fear of falling into the supermassive black hole. That shouldn't be hard to do since NGC 4889 is 300 million light years away -- that's 150 times the distance that the Andromeda Galaxy (our closest galaxy) is from Earth.

For even more context, the sun is eight light minutes from Earth.

Even though the Earth is not at risk of falling into the center, the photo is important to scientists for what is not shown. Since this image is the clearest look yet of NCG 4889, scientists are able to use scientific instruments that measure high-energy light given off by stars orbiting near a black hole.

"The black hole only influences the material very close to it, so to find evidence of black holes you need very sharp images to take measurements," van der Marel says.

Hubble finds 'monster stars'
ٍتلسكوب هابل يكتشف نجوم ضخمة
By Todd Leopold, CNN
Updated 1740 GMT (0140 HKT) March 18, 2016
Story highlights
Hubble reveals stars 100 times the mass of the sun
تلسكوب هابل يكتشف نجوم اكبر ظ،ظ*ظ* من كتلة الشمس

One in the R136 star cluster is the biggest known star in the universe
احد هذه النجوم ضمن مجموعة النجوم والتي رقمها أر ظ،ظ£ظ¦ يعتبر اكبر نجم في الكون
(CNN)There are monsters in the universe.
هناك نجوم ضخمة في الكون
That's the description of stars photographed by the Hubble Space Telescope, which took a
هذا هو الوصف للنجوم التي تمكن تلسكوب هابل من تصويرها
shot of the R136 star cluster and revealed nine stars more than 100 times the mass of the
والذي تمكن من تصوير النجوم ضمن مجموعة أر ظ،ظ£ظ¦ وقد تمكن من تصوير ظ© نجوم الواحد فيها أضخم ظ،ظ*ظ* من الشمس
sun, according to a statement from spacetelescope.org.
وذلك حسب تصريح صدر من قبل منظمة تلسكوب الفضاء
Hubble is operated by the European Space Agency and NASA.
علما بان تلسكوب هابل يتم تشغيله من قبل وكالة الفضاء الاوروبية وناسا
One of the stars is R136a1, the most massive star known in the universe. Even the lesser
ويقع ضمن هذه المجموعة نجم ورقمه أر ظ،ظ£ظ¦ اظ، يعتبر أضخم نجم معروف في الكون
stars in R136 are huge: "Dozens" of them exceed 50 sun masses, said the release.
حتى ان النجم الأصغر في مجموعة أر ظ،ظ£ظ¦ فهي ضخمة وعشرات منها يزيد حجمها عن ظ¥ظ* شمس حسب ما ورد في البيان
They're also incredibly bright, with the nine largest stars together outshining the sun by a factor of 30 million.
كما ان هذه النجوم مشعة بشكل لا يكاد يصدق حتى ان النجوم التسعة مجتمعه منها اكثر إشعاعا من الشمس بعامل يزيد على ظ£ظ* مليون مرة
R136 is about 170,000 light years away, in the Tarantula Nebula within the Large Magellanic Cloud. To give an idea of this distance, Alpha Centauri -- the closest star system to Earth -- is about 4.3 light years away, or about 25 trillion miles.
علما بان مجموعة النجوم ارظ،ظ£ظ¦ يبعد مسافة ظ،ظ§ظ*ظ*ظ*ظ* سنة ضوئية وتقع في مجرة Tarantula Nebula
والتي تقع في غيمة ماجلنك. ولتوضيح مدى بعد هذه النجوم فان اول مجموعة شمسية معروفة للعلماء وأقربها إلينا تبعد ما مقداره ظ¤.ظ£ مليون سنة ضوئية او حوالي ظ¢ظ¥ ترليون ميل
The discovery offers more information on star formation -- and, in terms of the cosmic scale, just in time. Massive stars live for only a few million years before going supernova.
ويلقي هذا الاكتشاف مزيدا من الضوء عن تشكل النجوم ون حجم الكون كمان ان النجوم الضخمة تعيش لعدة ملايين سنوات قبل ان تتحول الى سوبرنوفا
Paul Crowther, a University of Sheffield astrophysicist and lead author of the study, praised Hubble for the revelations.

"Once again, our work demonstrates that, despite being in orbit for over 25 years, there are some areas of science for which Hubble is still uniquely capable," he said.

The results will be published in the Monthly Notices of the Royal Astronomical Society.

تلسكوب ضخم يكتشف مئات من المجرات التي لم تكن معروفة من قبل