Black Hole Grows Massive After Snacking On A Star For A Decade
A super massive black hole has been discovered and it's so hungry that it has been eating star for more than 10 years. Astronomers say that it has been feasting on the star ten times longer than any stellar meal detected before. The feast has been going on so long that scientists are puzzled how it's been sustained without defying the laws of physics.
With NASA’s Chandra X-ray Observatory and Swift satellite as well as ESA’s XMM-Newton, researchers were able to spot the gigantic empty space. This record-breaking discovery is nicknamed XJ1500+0154, located at the core of a galaxy about 1.8 billion light-years away. The satellites stumbled across the incredibly bright flare emitted by XJ1500+0154 back in 2005.
According to NASA, when objects like stars get too close to black holes, the intense gravity of it can rip the star apart in what’s called a tidal disruption event (TDE). While some of the remains from the star is catapulted through space, parts of it are pulled back and ingested by the black hole, where it increases in temperature and emits an X-ray flare, the USA Today reports.
However, most TDEs last very short, which is why the new interstellar observation is so unique and surprising. Lead researcher Dachen Lin comments on the spectacular and unusually prolonged death of the star. "Dozens of tidal disruption events have been detected since the 1990s, but none that remained bright for nearly as long as this one," Lin says.
In fact, the star has been fed on for so long that it's pushing the limits of physics, consistently surpassing something called the Eddinton Limit which is the maximum brightness a star can achieve, the Science Alert reports. If a star is pushing out enough radiation to get this bright, then gravity should have a problem holding it together. It is for that reason that it's difficult to understand how supermassive black holes at the center of many galaxies, including our Milky Way, grew as big as they are.
Alien Lights Appear Over Canada, Striking Phenomenon Stuns Residents
Pillars of alien lights appear over a Canadian neighborhood in the wee hours of the morning, causing a father to run outside and take pictures of the rare light occurrence. NASA explains that this phenomena have commonly made people to make reports of UFO sightings.
Google Lunar X Prize: Five Finalists Race To The Moon By Year's End
A total prize of $30 million is set to be awarded by Google Lunar X Prize to the team that launches a space craft to the moon and send high-definition images back to earth. The deadline for the luanch is set by the end of the year.
Space Travel Changes Shape Of Brain
A NASA-funded study shows that space travel can significantly affect the shape of the brain. Astronauts' gray matter volume fluctuates in different parts of the brain after spaceflight.
2 NASA Astronauts Are Home from ISS, Proving SpaceX Can Safely Bring People to and from Space
After a two-month mission, SpaceX brings back home 2 astronauts, proving that it could transport people to and from space safely.
NASA Astronauts To Conduct 2 More Spacewalks This Month
In an effort to finish upgrading the power system of the International Space Station (ISS), NASA astronauts Chris Cassidy and Robert Behnken will conduct a pair of spacewalks Thursday, July 16, and Tuesday, July 21.
MORE IN ITECHPOST
At-Risk Mental Health for Students: Developing Resilience Among Students amid the Coronavirus Pandemic
At-Risk Mental Health for Students to help students struggling with their mental health, especially now amid the pandemic. It focuses more on developing students' resilience.
Tech Leaders and Health Authorities Join Forces, Launch New Initiative to Help Fight Pandemic and Future Epidemics
Two contact tracing apps have been successfully launched recently in Canada and Ireland. The open-source code underlying these apps has been contributed to a newly launched initiative to help other countries and U.S. states in the fight against the pandemic.
Fairy Tail Game Releases a Season Pass, a Week After It Was Launched
The anime RPG Fairy Tail from Koei Tecmo has just released a season pass that will release additional characters and content into the game, just a week after it was launched.