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Home > News > Tags > supernovae
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Stories about: supernovae |
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A little less than a millennium ago, a lonely star exploded about 7,000 light-years away. The event was so bright that people were able to read by its light at midnight. A study of the debris the explosion left behind revealed that the star's death was quick and lonely.
At this point, the supernova remnant cal... |
27 September 2012
10:52 GMT |
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Unlike other cosmic formations, which astronomers name after things that only they can make out, the Pencil Nebula, colloquially known as the witch's broom, actually looks the way its name suggests.
Researchers at the European Southern Observatory (ESO) used La Silla Observatory in Chile to image the nebula, w... |
12 September 2012
10:01 GMT |
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The famous Kepler supernova remnant, left behind by a huge blast that occurred in 1604, is apparently more distant than originally estimated. The conclusion belongs to a new study carried out using the NASA Chandra X-Ray Observatory.
When the distant star exploded, it became visible in Earth's night sky, and ca... |
12 September 2012
04:19 GMT |
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Dr. Charles Wang, an astrophysicist at the University of Aberdeen, proposes a new theory on why stars explode. Other than providing the potential key to one of the most mysterious events in the Universe, the theory could also shed more light on the link between supernova events and climate change.
According to a pre... |
5 September 2012
08:29 GMT |
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While scanning the spiral galaxy NGC 5806, which is located in the constellation Virgo, astronomers using the NASA/ESA Hubble Space Telescope were able to detect the supernova explosion SN 2004dg.
The light this extreme event produced is visible as a faint yellow dot, at the bottom of the galaxy. This Hubble image w... |
1 September 2012
03:28 GMT |
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Astronomers at the Harvard-Smithsonian Center for Astrophysics (CfA) recently led an international collaboration of researchers that analyzed the light released by a massive supernova blast. What is so intriguing about this particular object is that its host galaxy is 9.5 billion light-years away.
There are many re... |
31 August 2012
08:53 GMT |
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A special class of neutron stars called pulsars could feature radiation belts around them, the results of a new study published in the August 24 issue of the top journal Science indicate. From this perspective, the objects would be similar to Earth, which is surrounded by the two Van Allen radiation belts.
Neutron ... |
29 August 2012
05:55 GMT |
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A team of experts from the multi-institutional Palomar Transient Factory (PTF) survey announces, in the August 24 issue of the top journal Science, the discovery of the first Type Ia supernova progenitor star system. The video above details how the binary structure will eventually blow up. Called PTF 11kx, the syst... |
24 August 2012
03:42 GMT |
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According to the conclusions of a new scientific study conducted in Denmark, it would appear that the development of life here on Earth got a boon from supernova explosions that occurred in the vicinity of the solar system.
Without these events, it is possible that life wouldn't have developed here, or that it... |
30 April 2012
03:38 GMT |
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An unfortunate combination of elements is conspiring to remove most star-forming materials from within the boundaries of a nearby galaxy. Astronomers have termed this process the leaf blower effect. This was discovered in studies conducted using the NASA Galaxy Evolution Explorer (GALEX) spacecraft, which surveys th... |
4 April 2012
03:13 GMT |
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A series of new investigations were recently able to provide a new insight into how a class of dramatic cosmic explosions, called Type Ia supernovae, occurs. Researchers identified three scenarios that might help explain these phenomena. For this study, scientists at the NASA Goddard Space Flight Center (GSFC) used... |
21 March 2012
03:25 GMT |
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A group of scientists was finally able to figure out why galaxies appear capable to form new stars even if they no longer have the necessary supplies of hydrogen gas. The team found a galaxy that is currently recycling already-used materials, putting it to work again. This discovery explains how galaxies seemingly d... |
14 March 2012
16:31 GMT |
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During an interview Time magazine conducted with American astrophysicist Neil deGrasse Tyson, a reader asked the scientist about what he finds to be the most astounding fact about the Universe. The video above was created to showcase his answer.
Right now, Tyson is the Frederick P. Rose Director of the Rose Center ... |
7 March 2012
02:29 GMT |
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Violent cosmic collisions between carbon particles and shock waves produced by supernova explosions may be responsible for the creation of DNA-sized diamonds in outer space. Experts first found these structures inside meteorites that survived atmospheric reentry, and crashed to the surface.
This discovery is very i... |
17 February 2012
10:14 GMT |
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A group of investigators with an international scientific collaboration announces the discovery of the rare-Earth element tellurium in three ancient stars. The objects are about 12 billion years old, meaning that they formed when the Universe was only a portion of its current age.
This investigation suggests that t... |
17 February 2012
09:42 GMT |
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About 174 years ago, one of the largest stars in the Milky Way, called Eta Carinae, underwent something called the Great Eruption. This was a huge explosion that made it the second-brightest star in the sky for about a decade, and which researchers are now finding was colder than first calculated.
This is a very in... |
16 February 2012
03:23 GMT |
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A composite image of the oldest known supernova, called RCW 86, has just been released by NASA. The photograph contains X-ray data from the NASA Chandra X-ray Observatory and the European Space Agency's XMM-Newton Observatory, as well as infrared data from the NASA Spitzer Space Telescope and the Wide-Field Infr... |
14 February 2012
02:17 GMT |
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When a massive star in the Milky Way's Ophiuchus constellation blew up, it spread rays of light so bright, that they exceeded the brilliance of Mars when they reached Earth, in 1604. Within a few days of the first sighting, the light source was even brighter than Jupiter.
This amazing image was collected using... |
30 December 2011
05:52 GMT |
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On August 24, astronomers managed to catch a supernova in the act of blowing up. What was so remarkable about this event is that it was the first one ever to be imaged as it started happening, providing the earliest known detection of such a blast.
The nearby event was a Type Ia event, meaning that it was produced ... |
15 December 2011
05:02 GMT |
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NASA's latest Image of the Day is indeed an interesting sight. It is a snapshot from a computer model showing a binary system, made up of a blue stars (right) and a massive, red super-giant companion. The left star is caught here in the process of going supernova.
According to the model, the massive explosion ... |
2 December 2011
10:53 GMT |
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In the near future, astronomers may no longer have to wait constantly for stars to explode in order to observe supernova events. Researchers are now very close to developing a method of predicting which stars in a certain area are most likely to blow up.
Stellar brightness and dimness variations represent one of th... |
2 December 2011
10:42 GMT |
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A group of astronomers were recently able to discover an agglomeration of very old stars on the outer fringes of the galaxy, which turned out to have a very unique and unexpected chemical composition. Analysis revealed the objects to contain a lot of heavy chemical elements.
According to established theories on ste... |
1 December 2011
06:25 GMT |
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In two papers published in the December 1 issue of the top scientific journal Nature, investigators describe two possible explanations for an extremely-weird gamma-ray burst astronomers detected on Christmas Day 2010.
The event was first detected by the NASA Swift spacecraft, and cataloged as GRB 101225A. The main r... |
1 December 2011
02:59 GMT |
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This 9-year-old image collected by the NASA/ESA Hubble Space Telescope reveals a patch containing the oldest burnt-out star in our entire galaxy. These white dwarfs individually provide a means of assessing the age of the Universe that goes beyond studying ever-accelerating cosmic expansion.
White dwarfs are the hel... |
3 November 2011
03:40 GMT |
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Astronomers using two NASA telescopes were recently able to produce a new image of a supernova remnant that is believed to have been caused by a stellar explosion which was first seen by Chinese astronomers around 185 AD.
The Spitzer Space Telescope and the Wide-field Infrared Survey Explorer (WISE), both of which ... |
27 October 2011
02:50 GMT |
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Using the NASA Spitzer Space Telescope, astronomers were recently able to answer some of the most difficult questions related to the supernova RCW 86. Chinese astronomers were the first to detect it in 185 AD, and the object is widely accepted as the oldest documented supernova event.
In the new investigation, expe... |
25 October 2011
03:32 GMT |
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Astronomers operating the NASA Chandra X-Ray Observatory (CXC) have just released a new image of the beautiful Carina Nebula, a cosmic formation located about 7,500 light-years away. The object lies within the Sagittarius-Carina arm of our galaxy, the Milky Way.
According to the latest X-ray measurements, the nebu... |
15 October 2011
04:39 GMT |
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This distant spiral galaxy, called NGC 300, has recently been shown to contain an impressive binary system at its core. Unlike other such systems, this one is made up of a relatively large star, which orbits around a black hole.
Such setups are very rare, because they are very difficult to form. The presence of a ... |
7 October 2011
07:01 GMT |
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Astronomers operating the NASA Hubble Space Telescope were surprised to look at a photo of a normal dwarf galaxy, and see that it was actually spewing out numerous gas bubbles in its surroundings. This is the first time experts see such an event taking place.
The huge bubbles of gas can be seen glowing in the new... |
4 October 2011
10:43 GMT |
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At a symposium that took place yesterday, July 25, in Tenerife, Spain, astronomers announce the discovery of a new planetary nebula, which is shaped like a soccer ball. The object was found by, and named after, Austrian amateur astronomer Matthias Kronberger.
He was browsing data in the Digital Sky Survey when he ... |
26 July 2011
02:46 GMT |
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Experts working with the Panoramic Survey Telescope & Rapid Response System (Pan-STARR) announce the discovery of two new supernovae. These are massive explosions that occur when a star reaches the end of its burning cycle, and gets violently destroyed.
When a massive precursor star is involved, this usually lead... |
22 July 2011
02:46 GMT |
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Astronomers with the Harvard-Smithsonian Center for Astrophysics (CfA) announce the discovery of a pair of white dwarf stars locked in a binary system. The two objects are moving closer and closer to each other, and are expected to merge together in the future. White dwarfs are the remnants of Sun-like stars. They ar... |
14 July 2011
05:55 GMT |
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Astronomers using the European Space Agency's (ESA) Herschel Space Observatory announce the discovery of massive volumes of dust in supernova remnants. The finding confirms the theory which holds that the violent death of massive stars is responsible for seeding heavy elements in the Cosmos.Determining which mec... |
8 July 2011
03:22 GMT |
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Recently, astronomers were surprised to detect a blast of highly-energetic light, originating in a peculiar portion of the Universe. After initial analysis, experts concluded that the explosion may have been produced by the most distant object ever detected in the Cosmos. The impressive gamma-ray burst (GRB) was sho... |
26 May 2011
02:28 GMT |
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A group of scientists proposes that the origin of a hybrid gamma-ray burst they observed some time ago may have been a white hole. There is no other way to explain why the event unfolded with the intensity and duration it did, they add.In order to understand why the team made this proposition, we must first look at G... |
23 May 2011
03:34 GMT |
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About six years ago, astronomers identified a supernova that apparently defies classification, and would be better off in a class of its own. Dubbed SN 2005E, the object was found spewing out the chemical elements titanium and calcium, something that has never been observed before. Current theories and existing obser... |
19 May 2011
10:12 GMT |
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A group of investigators using the Chandra X-ray Observatory recently managed to get more insight into the factors that cause the appearance of type Ia supernovae. These are some of the most powerful blasts in the entire Universe, but their origins have never been clearly established. The team found traces of stellar... |
27 April 2011
03:30 GMT |
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Since astronomers first discovered supernova events and dwarf galaxies, they were surprised to learn that a very large portion of these tremendously energetic explosions were occurring in the smallest galaxies around. Scientists behind a new study believe they are close to figuring out why this is.They are using the ... |
22 April 2011
10:49 GMT |
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Discoveries recently made with an advanced telescope indicate that filaments developing inside clouds of cosmic gas have about the same width. The measure holds true regardless of the length or density inside these clouds. The finding holds some interesting implications for astronomy.Experts were surveying nearby int... |
14 April 2011
07:32 GMT |
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According to astronomers, our solar system is traveling through space inside a structure known as the Local Bubble. In fact, this is but one in many cavity-like structure that appear to exist in the interstellar medium at our location in the Milky Way. The interstellar medium (ISM) is a term experts use to refer to a... |
5 April 2011
18:01 GMT |
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An amazing new image collected by the NASA Chandra X-ray Observatory has determined the existence of an interesting pattern of X-ray stripes inside the Tycho supernova remnant. This is the first time such structures are found in these cosmic leftovers. Remnants are produced after massive stars reach the end of their ... |
25 March 2011
09:55 GMT |
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A group of investigators in the United States is currently taking on the difficult task of understanding how core-collapse supernovae (CCSN) take place, and how the resulting pulsars come to be.This has been an elusive mystery in astrophysics for many years, and a large numbers of research teams have tried to crack t... |
7 March 2011
04:50 GMT |
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For many years, astronomers have observed the fireballs left behind by supernova explosions, and they only saw symmetric remnants. But now the case is getting stronger that a particular type of supernova is capable of creating asymmetrical nebulae after the original explosion subdues. There are several possible ways ... |
1 March 2011
05:03 GMT |
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According to the latest investigations of young neutron stars, it would appear that the only way to account for the significant temperature changes they are undergoing is to accept that they have liquid cores. Experts believe that the objects' interior may be made up of a state of matter called superfluid.These ... |
5 February 2011
05:42 GMT |
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For all their tremendous uses in the fields of astronomy and astrophysics, Type Ia supernova events are still surrounded in mystery, especially when it comes to figuring out its origins. They are being used as reference points everyday, yet researchers have no idea what produces them.One of the things that make Type ... |
1 February 2011
09:04 GMT |
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Determining the distance various objects are from Earth is a critical component of astronomical studies, and one of the key traits of space studies. However, establishing these distances is not easy, and now experts are working on developing a new method that will aid them in this regard. Astronomers are working on c... |
31 January 2011
08:30 GMT |
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Determining when and how life first developed in the Universe is one of the key questions in science, and three European experts now propose a new method for establishing how the earliest life-enabling chemicals formed. The team says that understanding the time onset and conditions that prevailed in the Cosmos at the... |
31 January 2011
04:51 GMT |
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Over the past few days, a large number of online, science-related news sites have reported that the massive star Betelgeuse will explode in 2012, in a large supernova event that will be visible from Earth. In fact, reports say that the explosion will appear as a second Sun. This is all false, experts say.A supernova ... |
22 January 2011
05:21 GMT |
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Astronomer say that the supernova closest to our planet is called SN 1987A. They say that the precursor star in which the event originated blew up millennia ago, and add that the object is located very close in astronomical terms, in a neighboring galaxy.
As its name implies, SN 1987A was first seen in 1987, the ... |
14 January 2011
02:27 GMT |
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The most recent scientific findings appear to paint a new portrait of how life appeared and developed in our galaxy. The data indicate that it originated inside massive molecular clouds spread throughout the Milky Way, more than 10 billion years ago. This means that life began developing when the Universe was just a... |
14 January 2011
01:49 GMT |
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