December 6, 2008 |
More than 400 years after Danish astronomer Tycho Brahe challenged established wisdom about the heavens by analyzing a strange new light in the sky, scientists say they've nailed down just what he saw. They knew the light came from a supernova, a huge star explosion. But what kind? A new study confirms that it was the common kind that involves the thermonuclear explosion of a white dwarf star with a nearby companion.
May 22, 2008 |
A pair of young astronomers have captured for the first time the earliest death throes of a supernova, verifying a decades-old theory about how the giant stars commit stellar suicide. While scanning a galaxy 90 million light-years away, the soon-to-be-married couple noticed a sudden eruption of X-rays from a spot in the constellation Lynx.
May 17, 2008 |
Astronomers have discovered the youngest known supernova in the Milky Way galaxy, still just a baby at 140 years old. The scientists, who announced their findings Wednesday, used a radio observatory in New Mexico and NASA's Chandra X-ray Observatory in space to determine when the supernova occurred. They dated the event to around 1868. Before this, the youngest supernova in the Milky Way was thought to have occurred around 1680. A supernova is the catastrophic explosion of a star that releases an extraordinary amount of energy, enough to outshine an entire galaxy.
May 8, 2007 |
Shining like a hay fire across a wide prairie, the brightest supernova ever recorded has been found in a galaxy 240 million light-years from Earth. Astronomers said Monday that the supernova might represent a new way for giant stars to die. "Of all the exploding stars ever observed, this was the king," said UC Berkeley astronomer Alex Filippenko. "We were astonished to see how bright it got, and how long it lasted."
September 23, 2006 |
There's enough Supernova for everyone. At least according to the settlement reached by an Orange County punk band called Supernova and the CBS reality show "Rock Star: Supernova." Under an agreement announced this week, the punk band will keep its name and the TV band will be known as "Rock Star Supernova."
September 14, 2006 |
IN the end, goth as much as rock won out in the finale of "Rock Star: Supernova," as Lukas Rossi -- the androgynous, spiky-haired Canadian wailer who favors charcoaled eyes, black nail polish and fingerless fishnet gloves -- beat all comers.
September 2, 2006 |
Astronomers have for the first time caught a supernova in the act of exploding, according to four papers this week in the journal Nature. NASA's Swift satellite first observed a gamma-ray burst Feb. 18 about 400 million light-years away toward the constellation Aries, and researchers began monitoring from observatories around the world. An initial burst of high-energy X-rays pierced the doomed star from its core before the massive star blew apart.
August 15, 2006 |
In astronomy, one supernova doesn't normally compete with another because, after all, the universe is big enough for both of them. But not so in show business, according to a lawsuit filed by Supernova, an obscure Orange County rock band, against "Rock Star: Supernova," the CBS reality television show featuring famed rock drummer Tommy Lee.
September 24, 2005 |
A nearby supernova 41,000 years ago may have led to the extinction of the mammoth and other large creatures on Earth, researchers from the Lawrence Berkeley National Laboratory will report today at an international conference in South Dakota. The team believes that debris from the explosion, about 250 light-years from Earth, coalesced into low-density comet-like objects that rained onto our planet 13,000 years ago.
October 30, 2004
Star dust found deep beneath the Pacific Ocean has led German scientists to speculate that a supernova 3 million years ago might have helped bring about human evolution. The supernova might have caused an increase in cosmic rays for about 300,000 years that could have heated up the Earth, they wrote in Physical Review Letters. The timing coincides with a change in Africa's climate. It is believed this change brought hominids out of the trees, forcing them to walk upright.