The world’s most powerful radio telescope is now functioning!

One of the best places to put a telescope is in the Atacama Desert, which is on the boarder of Chile and Peru – currently there are around 20 telescopes (both radio and optical) functioning in the area.

The Alma telescope

In the last few days, the world’s largest radio telescope, the Alma telescope, has began to function. Currently the telescope is made up of around 20 massive antenna dishes, which work in harmony to produce amazingly detailed pictures of outer space.

The project has input from all around the world, with Europe, North America, East Asia and the Republic of Chile forming a partnership, all doing their bit to add more antenna dishes and improve the telescope.

The ALMA Telescope

The antenna dishes that currently make up the telescope ALMA Telescope

When the project is completed, (hopefully within the next 20 years if all goes to plan) the telescope will have a whopping 66 dishes at its disposal, all of which it can use to gaze at the stars in fantastic detail!

Why the Atacama Desert?

You are probably wondering why the Atacama Desert is such a hotspot for telescope activity. Well there are a number of reasons, but the main ones are that it has clear skies almost all the time, in addition to very dry air – meaning that its hard for humans to breath there due to low oxygen levels, but for the telescopes, that means very little interference from anything in the space above.

Furthermore, the desert has many high flat areas, meaning that telescopes can be closer to the atmosphere, meaning even less interference. In addition to this, because the Atacama is a desert, it has virtually no light pollution. Basically it is an astronomer’s dream location!

Is it working?

The project has only been live for less than a week now, but already some stunning high detailed pictures of space area already beginning to emerge. Below is one of these great pictures:

ALMA Telescope deep space picture

A picture of deep space made possible by the ALMA Telescope

Because the light we can see here on earth is often millions, if not billions of years old, we are able to see into the past when looking up at the sky, using super powerful telescopes like the Alma one.

Scientists believe that we will be able to see events that happened just 400 million years after the big bang, due to the light delay, hence enabling us to understand better than ever before the formation of the early universe.

The Alma telescope is just one small cog in our planets fascinating scientific road of discovery, however one thing’s for sure: this ‘small cog’ should be able to help us understand a lot more about the universe than ever before!

Get ready to rewrite the laws of physics!

At the end of last week the news broke that scientists at Cern believed they had managed to send subatomic particles faster than the speed of light! This was big science news, and potentially big technology news in the future, however I choose not to write about the discovery straight away, as I wanted to find out as much as I could before reporting back to you.

What happened?

So what basically happened last week was that scientists in Cern (Switzerland) who have been blasting neutrinos (subatomic particles) 732km all the way to Gran Sasso (Italy) for a good few years now, collated all their data, and found that it would actually appear that the neutrinos arrived at Gran Sasso when light was still 18m away Basically the neutrinos raced light 732km and won by 0.00000006 seconds –  or as you could also say, 60 nanoseconds.

Is this true?

Scientists at Cern would tell you that their research has been checked and double checked, therefore what they have found out is true as they can’t seem to find a flaw in the research. However at the same time, almost any good physicist, and no doubt scientist working on the project would tell you that it can’t be true and that a variable must have been overlooked, as the results are impossible!


To verify the findings, two similar projects one in Hida (Japan) and the other in Chicago (USA) are attempting to recreate the experiment, and should have reliable enough results, hopefully, by some time next year.

Why is this important that the neutrinos travelled faster than the speed of light?

Einstein said that it was impossible to travel faster than the speed of light. If you like, light was the universal speed limit, no faster could anything ever go than light, you could go as fast, but not faster. This would mean that to get to the sun, (not that you would want to) the quickest you could ever do it would be in 8 minutes and 12 seconds.

The Sun

It takes around 8 minutes and 12 seconds for the light from the sun to reach earth

If the results from this experiment are correct, with some extra thrust, it would be possible for the neutrinos to get there even faster than light could.

How have they ‘broken the speed limit’?

You may be wondering how the neutrinos managed to get to Gran Sasso faster than light, and as are many scientists! There are two main theories of how they did it at the moment.

The first theory is that the speed of the neutrinos was so great they were simply able to travel faster than light.

The second, much more interesting theory is that the neutrinos didn’t exceed the speed of light, but instead dimension jumped! This means that they probably didn’t travel faster than the speed of light, just used another dimension to get from Cern to Gran Sasso.

The Doctor's TARDIS

The Doctor’s TARDIS (from Doctor Who) travels in time and space, this is only possible if you can either go faster then the speed of light, or jump dimensions

Physicist Brian Cox has an excellent explanation of how this could potentially work. When talking about extra dimensions he has said that:

“…if they are right, then things can take short cuts through the extra dimensions. It’s just like saying there is a speed limit that stops you going, lets say you go from London to Sidney, so you fly around the earth from London to Sidney, but the other way to do it, is go through digging a big tunnel, straight through the earth and that’s a shortcut. So in some ways, extra dimensions can behave like that, so what could be happening is the neutrinos could be taking a shortcut thorough another dimension.”

If this were right, then Einstein’s theory of special relativity wouldn’t be violated, just only valid in three dimensions.

What next?

The data is now out there on the net, for all scientists to analyse. Also, there are many places that are going to try and replicate the stud, to prove or disprove the results.

Hopefully we will have some more news soon, as to whether we actually can get things to travel faster than the speed of light, and as to whether there are are more than three (four including time) dimensions!

Anyone else slightly excited by this? 😀

The existence of dark energy is confirmed

The universe is too light. What?! Well, scientists have worked out how much the universe should weigh and how much substance it should contain, given the weight of matter, the size (height, length and breadth) of the universe and the time of it’s existence.

But, there is a problem. It is too light, and doesn’t have nearly enough substance. It is thought that ordinary matter such as stars, planets and gases only make up around 4% of the total weight of the universe. So where is the rest of it coming from?


That’s what scientists very recently think they have discovered. For a long time now there have been theories about so called ‘dark matter’ and ‘dark energy’ making up the difference, but until now, no actual proof.

However, the results from a major astronomical survey, which used the latest in hi-tech scientific technology and research methods to observe over 200,000 galaxies, appear to have confirmed the existence of dark energy.

The existence of dark energy appears to explain why the universe is expanding at an increasing rate. From what I understand, this is because the energy to some extent almost defies gravity, so if you were to throw a tennis ball, instead of eventually slowing down to a stop, dark energy would continue to increase the speed of the ball.

Scientists now believe that normal matter makes up around 4% of the universes weight, dark matter makes up around 22% and dark energy makes up the other 74%.

The matter that makes up the universe

A pie chart showing the percentages of the substances that make up the universe

We now have some proof of the existence of dark matter and dark energy, however there is still a very long way to go yet, before we discover the true secrets of our universe…

That is if we ever do!