Search on for Death Star that throws out deadly comets
By Richard Alleyne | telegraph.co.uk
Nasa scientists are searching for an invisible ‘Death Star’ that circles the Sun, which catapults potentially catastrophic comets at the Earth.
The star, also known as Nemesis, is five times the size of Jupiter and could be to blame for the impact that wiped out the dinosaurs 65 million years ago.
The bombardment of icy missiles is being blamed by some scientists for mass extinctions of life that they say happen every 26 million years.
Nemesis is predicted to lie at a distance equal to 25,000 times that of the Earth from the Sun, or a third of a light-year.
Astronomers believe it is of a type called a red or brown dwarf – a "failed star" that has not managed to generate enough energy to burn like the Sun.
But it should be detectable by a heat-sensitive space telescope called WISE, the Wide-Field Infrared Survey Explorer.
Launched last year, WISE began surveying the skies in January. It is expected to discover a 1000 brown dwarfs within 25 light-years of the Sun – right on our cosmic doorstep – before its coolant runs out in October.
The nearest normal star to us is around 4.5 light-year away.
Our solar system is thought to be surrounded by a vast sphere of icy bodies, twice as far away as Nemesis, called the Oort Cloud.
Some get kicked in towards the planets as comets – giant snowballs of ice, dust and rock – and the suggestion is that the Death Star’s gravitational influence is to blame.
The paleontologists David Raup and Jack Sepkoski discovered that, over the last 250 million years, life on Earth has been devastated on a 26-million-year cycle. Comet impacts are suggested as a likely cause for these catastrophes.
A similar impact by an asteroid wiped out the dinosaurs 65 million years ago, a major inquest by scientists concluded last week, though that is not being blamed on Nemesis.
Most stars have one or more companion stars orbiting around each other, which would make the sun’s single status unusual.
A major clue to Nemesis’s existence is a mysterious dwarf planet called Sedna that was spotted on an elongated 12,000-year-long orbit around the sun.
Mike Brown, who discovered Sedna in 2003, said: "Sedna is a very odd object – it shouldn’t be there! It never comes anywhere close to any of the giant planets or the sun. It’s way, way out there on this incredibly eccentric orbit.
The only way to get on an eccentric orbit is to have some giant body kick you – so what is out there?"
Professor John Matese, of the University of Louisiana at Lafayette, says most comets in the inner solar system seem to come from the same region of the Oort Cloud – launched by the pull of a companion star to the sun that scatters comets in its wake.
He suggests it is up to five times the size of Jupiter or 7,000 times the size of Earth.
He said: "There is statistically significant evidence that this concentration of comets could be caused by a companion to the Sun."
Red Ice Radio
Wallace Thornhill - The Electric Universe
Wallace Thornhill - Proto-Saturn, The Purple Dawn of Creation & Our Strange Solar System
Andy Lloyd - Dark Star, Evidence for Planet X
Don´t miss our upcoming program with Marshall Masters for more on Planet-X and solar system anomalies.
Dark Star Myths and Symbols
Russians order Flight Changes, after Massive Magnetic Shift downs Airliners
The Annunaki and the Myth of a 12th Planet
Stardust evidence points to planet collision
Massive Impact in the Kuiper Belt 4.5 Billion Years Ago
Giant impact added to Earth´s core
Mammoths and Other Great Beasts Peppered with Material from Space
Diamonds tell tale of comet that killed off the cavemen
The Comet Venus
Latest News from our Front Page
â€śUsâ€ť and â€śThemâ€ť
Iâ€™ve decided to translate yet another one of Julia Caesarâ€™s popular Sunday chronicles available in Swedish on the website Snaphanen. This one is named â€śUs and Themâ€ť and concerns a scandal of epic proportions, the Swedish governments â€śsociety coachâ€ť program. The plan was for the coaches to assist newly arrived immigrants with getting jobs and becoming integrated into society.
The Expulsion and Extermination of Eastern European Germans: An Overview
"Since the end of the war about 3,000,000 people, mostly women and children and overaged men, have been killed in eastern Germany and south-eastern Europe; about 15,000,000 people have been deported or had to flee from their homesteads and are on the road. About 25 per cent of these people, over 3,000,000 have died. About 4,000,000 men and women have ...
Your Smartphone Could be Tracking You Every 3 Minutes, Study Says
Your apps want to know where you are
Smartphone apps regularly collect large amounts of data on usersâ€™ locations, sometimes as often as every three minutes, new research suggests.
Researchers at Carnegie Mellon University conducted a study where they asked 23 people to use their Android smartphones normally, and tracked location data requests from each device with specially designed software, the Wall ...
Facebook accused of tracking all users even if they delete accounts, ask never to be followed
A new report claims that Facebook secretly installs tracking cookies on usersâ€™ computers, allowing them to follow users around the internet even after theyâ€™ve left the website, deleted their account and requested to be no longer followed.
Academic researchers said that the report showed that the company was breaking European law with its tracking policies. The law requires that users are ...
'Gay cake' bakery discriminated against client over sexual orientation, court told
David Scoffield QC, acting for the bakery, said if Leeâ€™s argument was right, a Muslim printer could not turn down a contract to print leaflets about the prophet Muhammad, an atheist could not turn down an order saying God made the world and a Roman Catholic printer could not decline making leaflets calling for the legalisation of abortion on demand.
|More News » |