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Displaying items by tag: Star

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Wednesday, 21 July 2010 22:44

Largest star discovered, but not in Hollywood

Edited: Discovering a big Hollywood star these days is easy to do, but astronomers have a more difficult time when they try to locate really massive or really large stars. However, astronomers recently succeeded at finding the most massive star so far discovered in the Universe. Called R136a1, it is about 265 times more massive than our Sun.

 

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Friday, 09 April 2010 01:07

Star epsilon Aurigae mystery looks to be solved

Once every 27 years astronomers see a mysterious object passing in front of the star epsilon Aurigae. Based on new images taken in January 2010 when the star was fully eclipsed by this mysterious object, astronomers now think the object is another star with a dusty disk around it.

 

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Sunday, 24 January 2010 21:08

New star class theorized but Electroweak Stars are hard to find

U.S. stronomers have proposed a new class of stars that haven’t even been detected yet. They are called electroweak stars—and they emit mostly neutrinos instead of light (electromagnetic radiation) like most stars--making them very difficult to locate.

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Sunday, 13 December 2009 21:45

Big Dipper adds to its population of stars

The seven main stars of the Big Dipper actually consisted of ten stars and, now, based on new astronomical observations by U.S. astronomers, a eleventh star has been found near Alcor, at the bend of the ladle’s handle.

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Wednesday, 09 December 2009 22:57

WISE satellite to look for darkest objects in universe

The U.S. space agency NASA is expecting to launch its Wide-field Infrared Survey Explorer satellite on Friday, December 11, 2009. The WISE satellite will explore the ultraviolet portions of the universe from some of the coolest stars ever produced to some of the darkest of the dwarf stars and asteroids.

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Thursday, 29 October 2009 21:05

Star explodes 13 billion years ago; we just see it now

NASA’s Swift satellite first observed a star explosion in April 2009. It turns out that this gamma-ray burst came from a star that exploded about 13 billion years ago, the furthest that astronomers have looked back at the early beginnings of our universe.

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Tuesday, 25 August 2009 18:52

Theory wrong: Star-mass ratio isn't same in all galaxies

A theory was found to be wrong by a group of astronomers after their research shows that there isn’t a particular ratio of high-mass newborn stars to low-mass newborn stars in all types of galaxies. Instead, stars come in a random mix of masses.

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Friday, 22 May 2009 18:35

Astronomers see star turn into pulsar

An international team of astronomers has observed for the first time a star being turned into a very fast rotating neutron star, what is called a millisecond pulsar. This discovery helps to find answers to how such massive stars evolve later in their lives.
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Tuesday, 07 April 2009 19:15

Chandra hands us unusual image of pulsar B1509

An interesting image taken by NASA’s Chandra X-ray Observatory shows a hand-shaped nebula coming out of a young, tiny but powerfully rotating pulsar called PSR B1509-58, or B1509 for short.

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Friday, 06 March 2009 23:13

NASA Kepler mission to answer age-old question

The Kepler spacecraft and its Delta II rocket are ready to lift off from Launch Complex 17-B at the Cape Canaveral Air Force Station. Scheduled lift off is 10:49 p.m. EST on Friday, March 9, 2009. Its mission is to answer the question: Are planets out there like Earth?

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Saturday, 21 February 2009 00:14

NASA's Fermi sees largest gamma-ray burst

NASA reported on February 19, 2009 that its Fermi Gamma-ray Space Telescope saw the first gamma-ray burst ever seen in high resolution. But, the big news is that the GRB is the largest ever recorded, having the "greatest total energy, the fastest motions and the highest energy initial emissions ever seen."

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Thursday, 29 January 2009 01:56

It's up to YOU: Pick the next Hubble space discovery

NASA is inviting everyone to choose the next astronomical object that will be discovered by the Hubble Space Telescope. As part of 2009, the "International Year of Astronomy," the competition is between various nebulae, star clusters, and galaxies. May the voting begin!

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Saturday, 17 January 2009 21:05

Orion easy to hunt down in winter night sky

Orion (“The Hunter”) is a prominent constellation that is easily visible throughout the world. As one of the largest and most recognizable constellations in the winter night sky, the three stars that make up Orion’s Belt are easily conspicuous in the southeastern night sky.


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Wednesday, 10 December 2008 21:38

Three Wise Men saw Jesus in June

According to Australian astronomer David Reneke, the bright Christmas Star (or, the Star of Bethlehem), which has been written about as appearing over the little manger in the town of Bethlehem some 2,000 years ago, did not occur in December but in June. Maybe Bing Crosby should be singing about a "Green Christmas," not a White one?

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Thursday, 04 December 2008 21:41

Brahe's 1572 supernova changed astronomy: Now it's explained!

Danish astronomer Tycho Brahe saw a "new and unusual star" in the November 1572 sky. He called it a new star, or "stella nova". This astronomical event changed the way the scientific world viewed the ancient beliefs of the heavens. Now, in 2008, Brahe’s supernova has been explained!

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Wednesday, 26 November 2008 02:59

Hubble homes in on huge stars

The Hubble Space Telescope has provided a detailed image of two of our galaxy's most massive stars.
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Friday, 17 October 2008 19:16

First pulsar discovered to 'œpulse' only in gamma-rays

NASA announces the first-of-its-kind discovery on October 16, 2008 through its media release “NASA’s Fermi Telescope discovers first gamma-ray-only pulsar.”
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Monday, 29 September 2008 23:07

Calling all space aliens on the new Cepheid phone

Hawaii-California astronomers propose that an advanced civilization could have used Cepheid variable stars as a way to communicate to (what they call “tickling”) other neighbors in the galaxy.
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Wednesday, 24 September 2008 19:34

Earth-like and Venus-like planets collide. Could it happen to us?

A planet similar to the size of Earth and a planet like Venus recently collided and were destroyed as they orbited around the star BD+20°307 in a mature solar system like our own. It is being called “the ultimate extinction event.”

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Tuesday, 16 September 2008 18:54

Astronomers (probably) take 1st direct pix of planet orbiting star

Canadian astronomers have discovered and photographed for the first time what they think is a normal sized exosolar planet (exoplanet) orbiting a star other than the Sun. However, if true it could change our theories of planet formation.
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