Showing posts with label Earth. Show all posts
Showing posts with label Earth. Show all posts

Tuesday, January 24, 2012

Biggest solar storm in years bombards Earth

The largest solar radiation outburst in six years has reached Earth, having hit our planet with high-energy atomic particles at around 2 pm GMT, scientists say, threatening possible malfunction of communication satellites and power grids.


This August 1, 2010 handout image courtesy of NASA's
Solar and Heliospheric Observatory (SOHO) shows a view
of the Sun. (AFP Photo / HO / NASA)
The major impact occured in the North Pole area.

The polar zones have very little protection against outbursts of solar radiation due to the structure of Earth’s magnetic field. Many airliners have been avoiding northern polar routes as the proton storm may disrupt high frequency radio communications, NOAA's Space Weather Prediction Center physicist Doug Biesecker told Gizmodo in an interview.

High precision GPS equipment can also be affected by solar radiation. Civilians however will hardly notice any positioning errors.

The functioning of the ISS has not be affected. Taking into consideration the prognosis for the solar storm, the ISS crew has not even had to take additional radiation security measures.

Meanwhile, the Northern Lights have lit up the skies above Scotland, northern England, and Ireland, which is a rarity for the relatively southern region. The light may be visible for a few more days according to the director of the Aurora section of the British Astronomical Association, Ken Kennedy.

Massive ejections of plasma, or coronal mass, from the Sun have often resulted in communication and other satellites, as well as ground communications facilities failing. They can cause magnetic storms but bring no evident harm to the health of the planet’s population.

The first solar storm this year was registered on January 19 by NASA’s extra-magnetospheric satellites at the Solar and Heliospheric Observatory SOHO, Solar Terrestrial Relations Observatory STEREO, and Advanced Composition Explorer ACE. Occurring after two storm-free months, that storm was ranked a relatively weak grade 5.

The solar tempest of today is very different. The last time a storm of such force happened was five years ago, in May 2005.

“For 24-25 January, we expect a magnetic storm that with a high probability can be attributed to a powerful class,” says the head of Russia’s Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation Sergey Gaydash.

Gaydash says the new solar outburst was accompanied by a so-called ‘protonic event’ – a sharp increase in a high-energy proton stream with speeds of up to 4 million kilometers per hour. Dangerous levels of 10-50 MeV (megaelectronvolt) protons have already been exceeded, while the levels of 100 MeV protons – the most dangerous for satellites and electronic equipment – has not passed the critical threshold so far.


Source: RT

Saturday, June 11, 2011

Armchair astronaut discovers Mars 'space station' using Google earth

We have all heard of little green men from Mars.
But now an American 'armchair astronaut' claims to have discovered a mysterious structure on the surface of the red planet - by looking on Google earth.
David Martines, whose YouTube video of the 'station' has racked up over 200,000 hits so far, claims to have randomly uncovered the picture while scanning the surface of the planet one day.
Uncovered: David Martines believes he has found a structure on the surface of Mars - by looking at Google Mars
The white dot in the centre of the screen has set the blogosphere alight with rumours of a secret base

Describing the 'structure' as a living quarters with red and blue stripes on it, to the untrained eye it looks nothing more than a white splodge on an otherwise unblemished red landscape.
He even lists the co-ordinates 49'19.73"N 29 33'06.53"W so others can go see the anomaly for themselves.

In a pre recorded 'fly by' video of the object, Mr Martines describes what he thinks the station might be.
He said: 'This is a video of something I discovered on Google Mars quite by accident.

'I call it Bio-station Alpha, because I'm just assuming that something lives in it or has lived in it.

NASA and Google have both yet to respond to the 'finding', circled here

'It's very unusual in that it's quite large, it's over 700 feet long and 150 feet wide, it looks like it's a cylinder or made up of cylinders.
The infamous 'Face on Mars' image from 1976 caused a huge stir when it was released
The infamous 'Face on Mars' image from 1976 caused a huge stir when it was released


'It could be a power station or it could be a biological containment or it could be a glorified garage - hope it's not a weapon.
'Whoever put it up there had a purpose I'm sure. I couldn't imagine what the purpose was. I couldn't imagine why anybody would want to live on Mars.
'It could be a way station for weary space travellers. It could also belong to NASA, I don't know that they would admit that.
'I don't know if they could pull off such a project without all the people seeing all the material going up there. I sort of doubt NASA has anything to do with this.
'I don't know if NASA even knows about this.'
The 'discovery' is similar to that of the infamous 'face on Mars'
Uncovered by the Viking 1 probe in 1976, a quirk of geography threw shadows over a small hill on the Cydonia region of Mars, making the inanimate rock look like a carved face.
The picture was heralded as proof of an alien civilisation by some but was dismissed as a mere trick of the light by scientists at NASA.
MailOnline has tried to contact both NASA and Goggle for a response to the image, but neither has replied.

Watch this Video:



Source: Daily Mail

Thursday, February 17, 2011

Solar flare eruptions set to reach Earth

Time lapse image of the solar flare as seen by Nasa's Solar Dynamics Observatory

Scientists around the world will be watching closely as three eruptions from the Sun reach the Earth over Thursday and Friday.

These "coronal mass ejections" will slam into the Earth's magnetic shield.

The waves of charged solar particles are the result of three solar flares directed at Earth in recent days, including the most powerful since 2006.

The biggest flares can disrupt technology, including power grids, communications systems and satellites.

The northern lights (Aurora Borealis) may also be visible further south than is normally the case - including from northern parts of the UK.

"Our current view is that the effect of the solar flare is likely to reach Earth later today (Thursday GMT), possibly tomorrow morning," said Alan Thomson, head of geomagnetism at the British Geological Survey (BGS).

He told BBC News: "In the scientific community, there's a feeling that it's not as intense as we first thought it might be. But it's possible still that it could be a large enough event for us to see the northern lights in the UK."

However, weather forecasts suggested cloudy conditions could mar views of any aurorae.

Technological impact

The US National Oceanographic and Atmospheric Administration (Noaa) said that three coronal mass ejections (CMEs) were en route as the result of solar flares on the 13, 14 and 15 February (GMT).

"The last of the three seems to be the fastest and may catch both of the forerunners about mid-to-late day tomorrow, February 17," read a statement from Noaa's Space Weather Prediction Center.

The flare recorded at 0156 GMT on 15 February was the strongest such event in four years, according to the US space agency (Nasa), which has been monitoring activity on the Sun. The event was classified as a so-called X-flare, the most intense type.

The source of all three events, sunspot 1158, has expanded rapidly in recent days.

Solar flares are caused by the sudden release of magnetic energy stored in the Sun's atmosphere.

Their effects can interfere with modern technology on Earth, such as electrical power grids, communications systems and satellites - including satellite navigation (or sat-nav) signals.

Although scientists are expecting most geomagnetic activity to occur on Thursday, Chinese state media has already reported some disruption to shortwave radio communications in the south of the country.

Awakening Sun

In 1972, a geomagnetic storm provoked by a solar flare knocked out long-distance telephone communication across the US state of Illinois. And in 1989, another storm plunged six million people into darkness across the Canadian province of Quebec.

The northern lights could be seen further south than is normal

Dr Thomson said it was possible infrastructure could be affected this time, but stressed: "The X-flare that was observed the other day was lower in magnitude than similar flares that have been associated with technological damage such as the loss of the Quebec power grid... and even the large magnetic storm in 2003, which caused some damage to satellites in orbit."

Scientists will have around half an hour's notice that the wave of charged particles is about to hit the Earth's magnetic shield.

This is taken from the point at which a Nasa satellite called Ace (the Advanced Composition Explorer) registers the solar radiation on its instruments: "We're sitting waiting for that event to happen," said Dr Thomson.

Researchers say the Sun has been awakening after a period of several years of low activity.

Source: BBC

Thursday, January 27, 2011

Earth ‘to get second sun’ as supernova turns night into day


The Earth could soon have a second sun, at least for a week or two.
The cosmic phenomenon will happen when one of the brightest stars in the night sky explodes into a supernova.
And, according to a report yesterday, the most stunning light show in the planet’s history could happen as soon as this year.

Cosmic phenomenon: The earth could soon have two suns when one of the brightest stars in the night sky explodes into a supernova
Cosmic phenomenon: The Earth could soon see two suns –
just like Luke Skywalker saw on Tatooine in the Star Wars film (pictured)



Earth will undoubtedly have a front row seat when the dying red supergiant star Betelgeuse finally blows itself into oblivion.
The explosion will be so bright that even though the star in the Orion constellation is 640 light-years away, it will still turn night into day and appear like there are two suns in the sky for a few weeks.
The only real debate is over exactly when it will happen.
In stellar terms, Betelgeuse is predicted to crash and burn in the very near future. But that doesn’t necessarily mean you have to rush out and buy sunglasses.
Brad Carter, Senior Lecturer of Physics at the University of Southern Queensland in Australia, claimed yesterday that the galactic blast could happen before 2012 – or any time over the next million years.
‘This old star is running out of fuel in its centre,’ Dr Carter told te Austalian website news.com.au.
‘This fuel keeps Betelgeuse shining and supported. When this fuel runs out the star will literally collapse in upon itself and it will do so very quickly.
‘This is the final hurrah for the star. It goes bang, it explodes, it lights up – we’ll have incredible brightness for a brief period of time for a couple of weeks and then over the coming months it begins to fade and then eventually it will be very hard to see at all,’ he added.

Look out: Betelgeuse, which is in the Orion constellation, is set to blow itself into oblivion - which will give the effect of two suns in the sky for us on Earth
Look out: Betelgeuse, which is in the Orion constellation,
is set to blow itself into oblivion –
which will give the effect of two suns in the sky for us on Earth


The Internet is abuzz with doomsday theories linking the supernova to the Mayan calendar’s prediction of an Armageddon in 2012, fuelled by the association of the word ‘Betelgeuse’ with the devil.
But experts claimed that even if the big bang is looming, it will still happen way too far from Earth to do us any harm.
‘When a star goes bang, the first we will observe of it is a rain of tiny particles called nuetrinos,’ said Dr Carter.
‘They will flood through the Earth and bizarrely enough, even though the supernova we see visually will light up the night sky, 99% of the energy in the supernova is released in these particles that will come through our bodies and through the Earth with absolutely no harm whatsoever.’
When it happens, the Betelgeuse supernova will almost certainly be the most dramatic ever seen.
It is the ninth brightest star in the night sky and the second brightest in the constellation of Orion, outshining its neighbour Rigel – or Beta Orionis – only very rarely.
It’s distinct orange-red colour makes it easy to spot in the night sky.
If it was at the centre of our solar system, its surface would extend past the asteroid belt, wholly engulfing Mercury, Venus, Mars and the Earth.