Posts Tagged ‘Extra-Solar Planets’

Radio Programmes Next Week on Homelessness, Conspiracy Theories and Aliens

February 6, 2019

Looking through next week’s Radio Times for 9th-15th February 2019 I found a number of programmes which might be of interest to some people following this blog.

On Monday, 11th February at 8.00 pm on Radio 4 there’s Beyond Tara and George, about rough sleepers. The blurb for this programme reads

Last year there were nearly 600 deaths on the streets of the UK. In this follow-up to last summer’s Radio 4 series on east London rough sleepers Tara and George, presenter Audrey Gilan catches up with the pair to ask what it would take to prevent the unnecessary deaths of homeless people. (p. 137).

Then a half hour later at 8.30 on the same channel, Analysis covers conspiracy theories. The Radio Times says of this

Professor James Tilley explores the current spate of political conspiracy theories, and examines what belief in them tells us about voters and politicians.

The next day, Tuesday 12th February, at 1.30 pm on the Beeb’s World Service there’s Documentary: So Where Are the Aliens?, which the Radio Times describes thus

Space, to quote the late, great Douglas Adams, is mindboggling big. So huge, in fact, that the probability of there being civilized life elsewhere in the universe is almost a mathematical certainty. This begs an obvious question, to which Seth Shostak – chief astronomer of the Seti institute (Search for Extraterrestrial Intelligence) has devoted his career. He speaks with fellow scientists Frank Drake and Jill Tarter about their pioneering work chasing extraterrestrial radio signals as well as the new listening and light-based techniques designed to open up the sky like never before. Last year’s tantalizing fly-by of the mysterious cigar-shaped Oumuamua has revived interest in this topic, although in 2019 ET could be forgiven for giving Earth a wide berth. (p. 138).

Regarding the programme on preventing the homeless dying, one way to stop it would be to fix the welfare state so that poor and vulnerable people didn’t become homeless in the first place. Giving more funding and expanding the number of homeless shelters so that they were safe and able to provide accommodation for rough sleepers would also be very good. As would support schemes for those with drug, alcohol or mental health problems. And as Mike’s pointed out in his reports on attacks on the homeless, it would also be very good idea for the right-wing media to stop portraying the homeless, as well as the disabled, the unemployed and those on benefits generally all as scroungers committing welfare fraud and generally demonizing them. But as the Tory party, the Scum, Express and Fail all depend on this for votes and sales, it isn’t going to happen.

The prgramme on conspiracy theories could be interesting, but I doubt it will actually face up to the fact that some conspiracies are real. Not the malign and bogus myths about a Jewish plot to destroy the White race, or that the business and political elite are really evil Reptoid aliens, a la David Icke, or have made a demonic pact with grey aliens from Zeti Reticuli to allow them to abduct us for experimentation while giving them the benefits of alien technology. Or similar myths about the Illuminati, Freemasons or Satanists.

The real conspiracies that exist are about the manipulation of politics by the world’s secret services, and secret big business think tanks and right-wing pressure groups. Such as the various front organisations set up by the CIA during the Cold War, the smears concocted by MI5 during the 1970s presenting Harold Wilson as a KGB agent, and the contemporary smears by the Integrity Initiative, funded by the Tory government, claiming that Corbyn and other left-wing figures across Europe and America were agents of Putin. And, of course, the real conspiracy by Shai Masot at the Israeli embassy to have Tory cabinet ministers, who didn’t support Israel, removed from government. As well as the embassy’s role in making fake accusations of anti-Semitism against entirely decent people in the Labour party.

But I’ve no doubt that the Beeb will shy well away from these real conspiracies, not least because of Britain’s sordid role in the West’s history of regime change in Developing nations that dared to defy the Americans and ourselves. The Beeb has put on similar programmes before, and the person being interviewed or presenting the argument was former Independent journo David Aaronovitch. And his line has always been to ignore these real conspiracies, and concentrate on all the mythical rubbish, which he presents as typical of the conspiracy milieu as a whole. Which you’d expect from an establishment broadcaster, that now seems to see itself very much as the propaganda arm of the Conservative British state.

Moving on to the programme on SETI, Shostak, Tarter and Drake are veterans not only of the search for intelligent alien life, but also of programmes and documentaries on the search. Drake was the creator of the now famous equation which bears his name, which is supposed to tell you how many alien civilisations we can expect to exist in the galaxy. He was one of the brains behind Project Ozma, alias ‘Project Little Green Men’ in the 1960s to listen for alien signals from two nearby, roughly sun-like stars, Tau Ceti and Epsilon Eridani. Which found zilch, unfortunately. Shostak and Tarter were two of the leaders of the new wave of SETI researchers in the 1990s, and Shostak wrote a book about the possibility of alien life and what they would possibly be like. This concluded that they wouldn’t be anything like us, ruling out aliens like Mr Spock in Star Trek. In size they would probably be the same as Labradors.

It’s been known now that the Galaxy is old enough and big enough, with the right kind of stars and an increasing multitude of known planets, some of them possibly suitable for life, for alien civilisations to have emerged several times. And if they only advanced at the speed of light, they should be here by now. But they’re not. So far we’ve detected no sign of them. Or no absolutely indisputable signs. So where are they? This problem is called the Fermi paradox after the Italian-American physicist, Enrico Fermi. Suggested answers are that life, or perhaps just intelligent life, is extremely rare in the universe. Space travel may be extremely difficult. Aliens may exist, but they may be completely uninterested in talking to us. In this respect, we may even be a ‘protected species’ considered too fragile at our current level of civilization for contact with the rest of the Galaxy. Or perhaps there really are predatory alien intelligences and civilisations out there, who automatically attack any culture na├»ve and trusting enough to announce their presence. In which case, all the alien civilisations out there are paranoid and keeping their heads well down. One of SF writer even wrote a collection of short stories, each of which gave one solution to the Paradox.

Astronomers Discover ‘Super-Earth’ around Barnard’s Star

November 15, 2018

Interesting little snippet in the I today. According to the paper, scientists have discovered a ‘super-Earth’ orbiting Barnard’s Star. The planet’s frozen, but they speculate there may nevertheless be water under its ice cap. The article runs

A frozen “super-Earth” has been discovered orbiting Barnard’s Star, the closest single star to the Sun. Despite temperatures of -150 degrees C, scientists believe there could be pockets of liquid water beneath the i8ce capable of harbouring life. Barnard’s Star is six light years from Earth and three times bigger. (p. 2).

Barnard’s Star is a red dwarf, a small, cool star smaller than the Sun. As a result, the ‘goldilocks’ zone around it, in which the temperatures are right for organic life as we know it, is also smaller and closer to the star. Way back in the 1960s one astronomer also believed he had detected two planets, about the size of Jupiter or bigger, orbiting it, but his findings were not confirmed by other astronomers.

Nevertheless, Barnard’s Star was selected as the destination for an interstellar mission by the BIS in the 1970s. Their Project Daedalus was the design for a two-stage, robotic starship using Helium-3 as fuel, mined from the atmosphere of Jupiter. They considered that the ship would be built in the 15th century, and would be able to make the trip in 50 years. This would mean that scientists, who started work on the programme in their twenties would still be alive when the ship finally reached its destination.

In the realm of Science Fiction, the Russian SF author Valentina Zhuravlyova chose it as the setting for her story, ‘The Astronaut’. This is the tale of Captain Alexei Zarubin, the captain of a doomed mission to a planet orbiting the star. In order to combat the terrible boredom experienced by space crews during long, largely automated voyages, each crewmember is required to have a hobby. Zarubin’s is painting. There’s an accident, so that the ship is unable to return to Earth unless one of them stays behind. Zarubin volunteers. Years later, another mission arrives at the Star in order to investigate what happened to him. They don’t find him, but he has left behind his paintings, showing the red-lit frozen wastes of the planet on which he was marooned. The story was included in the anthology Science Fiction Stories (London: Octopus Books 1979), Tom Boardman Jr., ed., pp. 267-84.

Of course, to fans of The Hitch-Hiker’s Guide to the Galaxy, Barnard’s Star is where the Galactic Hyperspace Development Council but the plans for the construction of a new hyperspace bypass going through the solar system, which would require the demolition of Earth. Just like the terrestrial council put the plans for the demolition of Arthur Dent’s house in a locked filing cabinet in a disused basement marked ‘Beware of the Leopard’.

While future centuries may see the construction of real spaceships heading to Barnard’s Star and its world, fortunately there seems very little likelihood of the Vogon Constructor Fleets appearing in our skies to demolish our world.

7 Earthlike Worlds Discovered Around Star Trappist-1

February 25, 2017

More awesome space news! This week, NASA announced that their Spitzer telescope had discovered a system of seven worlds orbiting the ultra-cool red dwarf star, Trappist-1. The star takes its name from the Belgian operated observatory, which found it. Astronomers from Liege university discovered two of these worlds. Three of these rocky worlds lie in the planet’s habitable zone, which means they could have life, and all of them have temperatures which would permit liquid water to exist. Because of the star’s small size and extremely cool temperature, they are closer to their star than Mercury is to the Sun. This video from the Kepler Telescope Channel also looks forward to the development of spacecraft that will be able to reach something like lightspeed, so that humanity may at some point in the future be able to expand into space. And at just 39 light years away, Trappist-1 and its worlds are a suitable nearby target for exploration. The scientists, who made the discovery, also say that the planets are so close together, that you’d be able to see all of them from the surface of one of the planets. They would loom larger than Earth’s Moon, and it would be possible to see even clouds and geological features on their surface.