Category: Main Show

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The Discussion: A cloudy but fun-filled AstroCamp dominates the discussions this month with glimpses of the planets and a hurried Messier Marathon in between gaps between the clouds. Nick Howes’ talk inspires reflections on the threat of asteroids and comets and how amateur astrophotographers can contribute to science.

The News: This month we take a look at NASA’s new draft 2015 Technologies Roadmap and discuss the advances in robotics, space propulsion, power transfer and nanotechnology that NASA hope to seed. Next up is some research from NASA’s Jet Propulsion Laboratory that suggests the discolouration on Europa’s surface might be irradiated salt from the moon’s subsurface ocean. Finally, we take a look at the discovery, using ESO’s VLT, that globular clusters in the Centaurus A galaxy are far heavier than they should be – perhaps harbouring vast amounts of dark matter.

The 5 Minute Concept: Just a hundred years after Newton’s notion of Universal Gravitation, John Mitchell proposed an idea so futuristic that it was barely even noticed until Einstein showed the universe has space-time geometry. Then, in 1972, the predictions of Newton, Einstein and Mitchell were revealed as the mind-bending reality of black holes.

The Interview: This month we welcome back Dr Joe Liske from the European Southern Observatory to talk about the New Technologies Telescope that tested new ways to build ever larger telescopes and paved the way for the monster observatories we see today.

Q&A: Listeners’ questions via email, Facebook & Twitter take us on a journey into the astronomy issues that have always plagued our understanding or stretched our credulity. This month Ralph & Paul answer:

• If there is life elsewhere in the solar system, where do you think it is most likely to be?Louisa Martin, Brisbane Australia, via email.

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The Discussion: Paul savours a quiet month of teaching astronomy and enjoys sketching Markarian’s Chain of galaxies, while Ralph gets into a few debates following an article publication and gets back to imaging the planet Venus. All in a month when the Project Helium Tears balloon took listeners’ names to the edge of space!

The News: This month we take a look at the discovery of complex organics in a new star system 455 light years away, a new study of the movement of dark matter during galactic collisions, a gas cloud passing the Milky Way’s supermassive black hole turns out to be a star – lucky not to get destroyed, SpaceX suffer another setback, Russia announce bold moon ambitions, Dwarf Planet Ceres gives us a few more answers but also some questions and we take a look at the new Star Wars movie trailer.

The 5 Minute Concept: Returning to our sceptical roots, Paul digs out the tin foil hat and takes leave of his senses as he delves into the barking world of the moon hoaxer and dispels the myths.

The Interview: This month we relive the Project Helium Tears space launch as slave John tagged along with Matt Kingsnorth and Phil St Pier – mission controllers to the edge of space for £1,200. The we bring them into the studio to talk about the mission, lighting up social media, appearing on TV and going viral with ‘Objective 2’.

Q&A: Listeners’ questions via email, Facebook & Twitter take us on a journey into the astronomy issues that have always plagued our understanding or stretched our credulity. This month Ralph & Paul answer:

• Constellations are based on arbitrary positions relative to Earth. So how far would you have to travel before they appear to move?Alex Speed, Bedfordshire UK, via Twitter.
• When I die, if I was to get fired from a cannon into outer space, would my body decompose? Darren Knight, Cambridgeshire UK via Twitter.

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The Discussion: Paul’s been busy with Sirius Astronomy, promoting space and astronomy education at The Big Bang event and schools across the UK, meeting NASA astronaut Michael Fowle and ESA astronaut Jean Francois Clervoy. Ralph’s been arranging astronomy events for London’s Baker Street Irregular Astronomers. Both are excited about the upcoming CosmicCon event in July and they speak with Phil St Pier from the Project Helium Tears team to reveal the winners of their space competition.

The News: This month we take a look at what’s in store for NASA’s Dawn spacecraft now that it’s made it safely into orbit around dwarf planet Ceres, a quick few thoughts on NASA’s New Horizon’s craft as it approaches the Pluto system, Saturn’s moon Enceladus and Jupiter’s moon Ganymede throw us some tantalising clues about their watery interiors and further potential for life, and we round off with news about a huge ocean that covered 20% of Mars’ entire surface.

The 5 Minute Concept: As we enter the Hubble Space Telescope’s 25th anniversary in space, Paul takes a look at this astronomy wonder that nearly didn’t even make it to the launch pad.

The Interview: Paul catches up with Richard Garner, the organiser of CosmicCon, to find out about the astronauts, TV presenters and astronomers we can expect to meet when we get there.

Q&A: Listeners’ questions via email, Facebook & Twitter take us on a journey into the astronomy issues that have always plagued our understanding or stretched our credulity. This month Ralph & Paul answer:

• Are there any colourful celestial objects that can be seen through a small scope?Matt Kingsnorth Essex UK, via Facebook.

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The Discussion: A final check-in with the Helium Tears team before they release their camera laden balloon to the edge of space and a free Awesome Astronomy competition to let you get involved in this adventure.

The News: This month we take a look at a star that zipped through our solar system during human history, get excited about the Dawn spacecraft’s close up views of dwarf planet Ceres, bid a sad farewell to Leonard Nimoy and look forward to this month’s solar eclipse.

The 5 Minute Concept: This month Paul takes a look at the most recognisable and unmissable object in the night sky: the moon. But how much do we actually know about our nearest celestial neighbour? Until the 1950s, actually, barely anything.

The Interview: Dr Joe Liske from the European Southern Observatory returns to the show for this series of interviews telling us about ESO’s groundbreaking telescopes. This time it’s the turn of the revolutionary Very Large Telescope.

Q&A: Listeners’ questions via email, Facebook & Twitter take us on a journey into the astronomy issues that have always plagued our understanding or stretched our credulity. This month Ralph & Paul answer:

• What’s the closest solar system to ours and could we ever explore it? Hedley Johnson in Des Moine, Iowa via email.
• What’s the oldest surviving space probe still transmitting data to Earth?David Blanchflower in Newcastle Upon Tyne via Twitter (@DavidBFlower).

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The Discussion: Enjoying views of Comet Lovejoy, engaging in astronomy outreach at schools, looking forward to the Spring AstroCamp in the Welsh Brecon Beacons dark sky reserve and catching up with the Project Helium Tears high altitude balloon team.

The Competition

Thanks to the Project Helium Tears team, we’re offering you the opportunity to see your name in space! Just tweet or email us and we’ll pick a winner (or winners) to have their name on the side of the spacecraft and have it photographed with the curvature of the Earth and the blackness of space in the background! Use the hashtag #TakeMeToSpace

The News: A full-to-bursting round up of the news over the last month, starting with the phoenix-like Kepler Space Telescope and the latest ‘Earth-like’ exoplanet and the possibility of life on Mars getting more likely following Curiosity’s detection of methane on the Red Planet. Next up is NASA’s options for an asteroid redirect mission, SpaceX’s attempt to land spent rocket stages and we finish with the Mars Reconnaissance Orbiter finding a Beagle on Mars.

The 5 Minute Concept: This month Paul puts a few myths to rest as he explores the facts about the asteroid belt between Mars & Jupiter.

The Interview: Ralph catches up with the European Space Agency’s Project Scientist for the Rosetta mission, Dr Matt Taylor, to get the latest on Rosetta and Philae results and find out what we can expect next from these intrepid comet explorers

Q&A: Listeners’ questions via email, Facebook & Twitter take us on a journey into the astronomy issues that have always plagued our understanding or stretched our credulity. This month Ralph & Paul answer:

• How many active satellites are there in orbit? Elizabeth Chamberlain in Worcester via email.
• What’s the difference between a comet, asteroid and a meteor? Christine L in Derbyshire via Twitter (@ChrispyDoDa) .

The Discussion: Christmas in Cydonia and teaching science to children through astronomy education.

The News: Kicking off 2015 we round off the events that concluded 2014: the successful test flight of NASA’s Orion capsule; NASA’s Mars Science Laboratory pieces together the clues that tell us how Mount Sharp (the mountain Mars Curiosity is exploring) was formed; and science findings from ESA’s Rosetta and Philae spacecraft that suggest water was not delivered to Earth by comets like 67P Churyumov Gerasimenko.

The 5 Minute Concept: This month Paul delves into the fundamental nature of our universe. We take a look at the Cosmological Principle, which tells us that the universe and the forces within it are the same wherever we look, and explore huge structures that put strain on this accepted model of cosmology.

The Interview: Ralph & Paul speak with the creators of the ‘Essex Space Agency’, Matt Kingsnorth and Phil St Pier who are building a high altitude balloon with cameras to photograph the Earth’s curved horizon from the edge of space in their Helium Tears project.

Q&A: Listeners’ questions via email, Facebook & Twitter take us on a journey into the astronomy issues that have always plagued our understanding or stretched our credulity. This month Ralph & Paul answer:

• Are there Van Allen Belts & Aurora on other planets? Any photos from satellites orbiting other planets in our solar system? Mariecor Agravante in San Diego via twitter.
• Why was the moon so large the other night?Ian Cheale in Cambridgeshire via the Facebook Group.

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The Discussion: The historical landing of the Philae probe on Comet 67P, lunar imaging and astronomy outreach in the UK.

The News: In the news we relive the events around the comet landing and the latest science findings from Churyumov Gerasimenko, the upcoming first test flight of America’s new manned space capsule Orion and the tragic accident aboard Virgin Galactic’s Spaceship Two, resulting in the death of one of the crewmembers

The 5 Minute Concept: Fresh on the heels of the European Space Agency’s latest successful mission, Paul turns his attentions this months to the beacon of knowledge, space exploration and engineering that rose from the ashes of Europe’s darkest days: ESA.

The Interview: Ralph speaks with NASA’s Orion Project Manager, Paul Marshall, about the upcoming test flight and the future of manned American space exploration.

Q&A: Listeners’ questions via email, Facebook & Twitter take us on a journey into the astronomy issues that have always plagued our understanding or stretched our credulity. This month Ralph & Paul answer:

• How far away is Voyager from the Oort Cloud and how many years will it be before it gets there? Lee Garner via Twitter.
• I’m bored of reading sniffy comments about the cost of Rosetta. Can u do a piece next podcast about the benefits vs low budget?Alex Speed via Twitter.

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The Discussion: Enjoying light pollution-free skies in the Ionian Sea and soaking up the atmosphere at the North West Astronomy Festival.

The News: In the news we have more findings about the interior and evolution of our moon from the GRAIL and Lunar Reconnaissance Orbiter missions; Russian and Chinese lunar ambitions ratchet up a notch; the ExoMars mission narrows down its possible 2018 landing sites; sampling the atmospheres of Neptune-sized exoplanets; Comet Siding Spring brushes past Mars; Lockheed Martin claim to have made a breakthrough in fusion reactors; more doubt on the gravitational waves detection by the BICEP2 team and dark matter particles streaming from the sun.

The 5 Minute Concept: In a solar maximum year when we have tons of solar activity that we can enjoy in the form of visible details on the sun and auroral activity that’s even reached as far south as central latitudes recently, this month Paul explains sunspots.

The Interview: Live interviews recorded from the North West Astronomy Festival from Jodrell Bank’s Professor Philippa Browning, Astrophotographer of the Year 2011’s Damian Peach, BBC Sky at Night presenter Professor Chris Lintott, writer and comedian Helen Keen and the host of the NWAF Andrew Davies.

Q&A: Listeners’ questions via email, Facebook & Twitter take us on a journey into the astronomy issues that have always plagued our understanding or stretched our credulity. This month Ralph & Paul answer:

• I know the moon doesn’t spin and that we cannot see the rear of it from Earth, but I wondered if we can ever see a little more of the right or left side (like at different times of the day or year or location on earth)? Ollie Broad from Thailand via Twitter.
• In your opinions should we send manned mission back to the moon or should we head straight to Mars? Lee Garner from the UK via Twitter .

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The Discussion: Enjoying dark skies at the National Trust, Paul’s astronomy outreach endeavours with Sirius Astronomy and predictions for the upcoming AstroCamp.

The Tour: In this special episode, Ralph and Paul bring record from the Surrey Space Centre at the University of Surrey in Guildford. We tour this world leading centre of excellence for low cost satellite design and innovation and explain the sights and work being conducted in the Ground Station and laboratories from where 30 satellites have already been launched and many more are currently in design.

The News: In the news we have the latest on the European Space Agency’s ambitious Rosetta spacecraft as it circularises its orbit around Comet Churyumov Gerasimenko; Japan’s Hayabusa2 mission to return pristine asteroid samples; watching asteroids colliding 1,000 light years away and yet another reminder of the asteroid lottery we’re playing.

The 5 Minute Concept: Recording from the UK centre of satellite design and construction, what else should Paul be talking about this month, but the physics and history of satellites.

The Interview: This month the seat is filled by the Surrey Space Centre’s Head of the Planetary Environments Group, Professor Craig Underwood as we discuss satellite innovation, the UK space industry and the future of space exploration.

Q&A: Listeners’ questions via email, Facebook & Twitter take us on a journey into the astronomy issues that have always plagued our understanding or stretched our credulity. This month Ralph & Paul answer:

• I understand Jupiter has no solid mass inside, so how come it’s classed as a planet and stays planet shaped? Mike Joy from Wales via Facebook
• Can you guys successfully explain the proton-proton chain in under 20 seconds?? Vicky Dews, @Woozydewsy via Twitter

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The Discussion: Sirius Astronomy and The Knowledge Observatory’s educational outreach and preparation for our dark sky observing weekend in Wales: AstroCamp.

The News: In the news we have the latest on the European Space Agency’s ambitious Rosetta spacecraft as it settles into it’s science program at Comet Churyumov Gerasimenko; details of the science payload for NASA’s ‘Curiosity 2’ Mars rover; revealing images of the Pluto system from the New Horizons spacecraft; China’s lunar orbit & spacecraft return mission and turbulent happenings on Uranus (sorry).

The 5 Minute Concept: Distant radio sources that reveal unknown monsters from the past, unleashing hell from afar. In this month’s 5MC, Paul takes us billions of light years away from home to explain one of the brightest and most energetic objects in the universe. Quasars.

The Interview: This month we return to the most exciting current space mission. In an attempt to understand the life of comets and unlock the secrets of the birth of the solar system, Ralph speaks to the European Space Agency’s Rosetta mission Project Scientist, Matt Taylor.

Q&A: Listeners’ questions via email, Facebook & Twitter take us on a journey into the astronomy issues that have always plagued our understanding or stretched our credulity. This month Ralph & Paul answer:

• Why does Venus rotate retrograde? Dave Bood from Scarborough, UK & Beatriz Caicedo, Guatemala .
• With the idea that all that is the universe originated in a speck with the big bang, and that the universe is expanding, how is it that things such as galaxies collide? Kurt Green, Chicago Illinois via email.
• How much would my 20 stone (280lbs) wife weigh on each of the planets in the solar system? Darren Knight .