homehome Home chatchat Notifications


Black hole in Dragon's belly swallows star and everything goes nutty from here

  The Draco constellation (which is Latin for Dragon) is located at about 3.8 billion light years from Earth; just like every dragon that has at least some common sense, it breathes fire, especially after carelessly eating a nearby star. Rewind. A mysterious cosmic blast in the Draco constellation is causing waves that continue to […]

Mihai Andrei
April 9, 2011 @ 11:09 am

share Share

Plot shows brightness changes recorded by telescopes. Credit: NASA/Swift/Penn State/J. Kennea

 

The Draco constellation (which is Latin for Dragon) is located at about 3.8 billion light years from Earth; just like every dragon that has at least some common sense, it breathes fire, especially after carelessly eating a nearby star.

Rewind. A mysterious cosmic blast in the Draco constellation is causing waves that continue to be observed long after researchers believe they should have stopped. Astronomers are scrambling, trying to find an answer to this puzzling question, but they haven’t been really successful, and nothing seems to explain this unusual situation; instead of the short lived gamma ray explosions that are typically associated with the death of a massive star that last only a few hours, the explosion continues to emit rays more than a week after the event.

This is a visible-light image of GRB 110328A's host galaxy (arrow) taken on April 4 by the Hubble Space Telescope's Wide Field Camera 3. The galaxy is 3.8 billion light-years away. (Credit: NASA/ESA/A. Fruchter - STScI)

 

“We know of objects in our own galaxy that can produce repeated bursts, but they are thousands to millions of times less powerful than the bursts we are seeing now,” said Andrew Fruchter, an astronomer at the Space Telescope Science Institute in Baltimore. “This is truly extraordinary.”

Images from Swift's Ultraviolet/Optical (white, purple) and X-ray telescopes (yellow and red) were combined in this view of GRB 110328A. The blast was detected only in X-rays, which were collected over a 3.4-hour period on March 28. (Credit: NASA/Swift/Stefan Immler)

 

Most galaxies, including our own, have supermassive black holes at their centers, with the mass more than a million times the Sun. But in a big galaxy, like the one we’re talking about, they can be even a thousand times bigger.

“Every spiral galaxy has a black hole at the center of it,” Paul Czysz, professor emeritus of aerospace engineering at St. Louis University, told TechNewsWorld. “At the center of our galaxy, there’s a lot of stars circulating around the black hole at the center of the Milky Way.”

Just like the Sun keeps the planets in our solar system spinning around it, a supermassive black hole does the same for a galaxy, but sometimes, it “chews” on one of the stars closest to it, thus generating the short lived gamma ray bursts I was telling you about earlier. However, this phenomenon could revolutionize researchers’ understanding of how supermassive black holes, which is quite important, considering we have one of them in the very center of the Milky Way.

share Share

The Universe’s First “Little Red Dots” May Be a New Kind of Star With a Black Hole Inside

Mysterious red dots may be a peculiar cosmic hybrid between a star and a black hole.

Quakes on Mars Could Support Microbes Deep Beneath Its Surface

A new study finds that marsquakes may have doubled as grocery deliveries.

Pregnancy in Space Sounds Cool Until You Learn What Could Go Wrong

Growing a baby in space sounds like science fiction. Here’s why it might stay that way.

Astronomers Spotted a Ghostly Star Orbiting Betelgeuse and Its Days Are Already Numbered

A faint partner explains the red giant's mysterious heartbeat.

Our Radar Systems Have Accidentally Turned Earth into a Giant Space Beacon for the Last 75 Years and Scientists Say Aliens Could Be Listening

If aliens have a radio telescope, they already know we exist.

For the First Time Ever We Can See Planets Starting to Form Around a Star

JWST and ALMA peered through a natural opening in the star’s surrounding cloud to catch the action up close.

Scientists just figured out how to turn moon dirt into water and oxygen just using sunlight

Scientists find a way to turn moon regolith into water, air, and fuel…and that could change space travel.

NASA finally figures out what's up with those "Mars spiders"

They're not actual spiders, of course, but rather strange geological features.

Scientists Discover 9,000 Miles of Ancient Riverbeds on Mars. The Red Planet May Have Been Wet for Millions of Years

A new look at Mars makes you wonder just how wet it really was.

Scientists Are Racing to Reach a Mysterious World Before It Disappears for 11,000 Years

In 2076, Sedna will make a once-in-11,400-year close pass near the Sun.