Sagittarius A* keeps flashing randomly on a daily basis. Astronomers mapped 15 years of radiation bursts to try to figure out why.
The supermassive black hole at the center of the Milky Way, Sagittarius A*, keeps releasing random bursts of radiation on a daily basis and no one can figure out what is causing it. Now, an international team of researchers compiled 15 years of data to try and solve the mystery.
The team, led by a postgraduate student named Alexis Andrés, mapped a decade and a half’s worth of gamma-ray bursts from Sagittarius A* using NASA’s Neil Gehrels Swift Observatory.
These bursts ranged from tens to hundreds of times brighter than the normal signals sent out by the supermassive black hole at the heart of our galaxy, but they don’t appear to follow a discernable pattern.
The data from 2006 to 2008 show high levels of gamma-ray activity, followed by a rapid four-year-long drop, after which activity shot back up, starting in 2012.
Sagittarius A*, the supermassive black hole in the heart of our galaxy releases powerful bursts of radiation on a daily basis and we don’t know why.
The sun was once surrounded by rings of gas and dust similar to those orbiting Saturn, a new study published in the journal Nature Astronomy reveals.
These rings played a vital role in the formation of our solar system and in the size and habitability of Earth.
The early sun’s dust and gas rings may have stopped our planet from becoming a “super-Earth,” according to the Rice University astrophysicists behind the new paper. “In the solar system, something happened to prevent the Earth from growing to become a much larger type of terrestrial planet called a super-Earth,” Rice University astrophysicist André Izidoro, said in a press statement.
In our solar system, Saturn is the farthest planet from Earth that can be seen with the naked eye. And if it is destroyed by an asteroid while you are watching it (with or without a telescope), the ringed planet would still be visible to you for around 80 minutes, on average, even after it’s in bits and pieces. This happens because the average distance between Saturn and Earth is 0.00015 light-years, which means that the light from Saturn takes approximately 80 minutes to rea… See more.
A lightyear is a unit that denotes the distance of objects from Earth in space. But how did it come to be and how does it help us in space travels?
The more the enterprise transitions from a mere digital organization to a fully intelligent one, the more data executives will come to realize that traditional monitoring and management of complex systems and processes is not enough.
What’s needed is a new, more expansive form of oversight – which lately has come to be known as “data observability.”
The distinction between observability and monitoring is subtle but significant. As VentureBeat writer John Paul Titlow explained in a recent piece, monitoring allows technicians to view past and current data environments according to predefined metrics or logs. Observability, on the other hand, provides insight into why systems are changing over time, and may detect conditions that have not previously been considered. In short, monitoring tells you what is happening, while observability tells you why it’s happening.
Personalized smart guns, which can be fired only by verified users, may finally become available to U.S. consumers after two decades of questions about reliability and concerns they will usher in a new wave of government regulation.
Four-year-old LodeStar Works on Friday unveiled its 9mm smart handgun for shareholders and investors in Boise, Idaho. And a Kansas company, SmartGunz LLC, says law enforcement agents are beta testing its product, a similar but simpler model.
Both companies hope to have a product commercially available this year.
How about this as an incentive to relocate: $10K in crypto and a bike.
Northwest Arkansas hopes to lure remote tech workers and entrepreneurs to the region by offering them $10,000 worth of Bitcoin (BTC-USD) and a bicycle.
“Northwest Arkansas is one of the fastest-growing regions in the country, and we’re now seeing more explosive growth in our tech sector,” said Nelson Peacock, president and CEO of the Northwest Arkansas Council.
Hypersonic speeds, 3D-printed components, and emissions-free propulsion systems are three major trends in the aerospace industry. Add reusability for increased cost-effectiveness, and you’ve got the recipe for a new-generation spaceplane that’s gearing up to make waves in just a couple of years. And it’s coming from Australia.