Routine Spaceflight?

Pythagorean Astronomy

#Science #Chris North #Edward Gomez #Space #Astronomy #News #Research #Natural Sciences

57:50

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3年之前 21:37

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It's not often that a new astronomical phenomenon is named, but this month we have a new one. The name might not be that original, but there have been the first observations of something known as a "micronova". Lasting just a few hours, a micronova is much fainter than a typical "nova", making them much harder to detect, and much less likely to be picked up. Chris North and Edward Gomez discuss what causes these events. Coming closer to home, spaceflight has been busy, with two missions to the Space Station in April - one part of the normal rotation of astronauts, and the other a privately-funded mission from SpaceX. Does this mean that space travel is becoming routine? And is that even a good thing? Most of our exploration of space is, of course, done by robotic spacecraft, and NASA have just announced extensions to a number of their ongoing missions. Some of which have already been going for over 20 years - take a bow, Mars Odyssey! From rovers on Mars to lunar mappers, and from asteroid encounters to voyagers into the unknown, there's still more exciting science to come from these missions.

118集单集

Routine Spaceflight?

Pythagorean Astronomy

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published 3年之前

MP3•单集首页

118集单集

#Science #Chris North #Edward Gomez #Space #Astronomy #News #Research #Natural Sciences

Kaikki jaksot

1
Northern Lights, New Camera, Cosmological Action 53:57

48 weeks之前53:57

53:57

Edward and Chris discuss the recent Northern Lights show seen across the UK, the discovery of new free-floating planets, massive black holes and the completion of the largest camera ever built. Ian Harrison joins us to report on the latest tensions in cosmology, and the potential solutions to a problem that has been concerning cosmologists for the last few years.…

1
Dust to dust 42:25

1 year之前42:25

42:25

Edward Gomez and Chris North discuss names going to Jupiter on the Europa Clipper mission, which is currently being assembled. Then there is a new cannibal star, suspected of eating its own planets, and the detection of new "Galactic Streams" of stars that all formed together but have since spread out through the Galaxy. Finally, we move onto planet formation and the detection of ices in forming planetary systems. But where does all that planet-forming material come from originally? Haley Gomez and Cosimo Inserra tell us about a new object that's changing our view of where all the dust in the Universe originates.…

1
XRISM and Matter's Final Screams 49:15

1 year之前49:15

49:15

This month Edward and Chris talk the recent lunar missions - Astrobotic's Peregrine and Japan's SLIM. There's also the Ingenuity helicopter on Mars on what turned out post-recording to be it's final flight! Further afield we talk mega-structures on a galactic scale and asteroids crashing to Earth. January also saw the first light from the XRISM satellite, the latest X-ray satellite. We hear from Prof Chris Done (University of Durham and University of Tokyo) about the mission and the future of x-ray astronomy.…

1
2023 Review and 2024 look-ahead 23:41

1 year之前23:41

23:41

Chris North and Edward Gomez review some stories from 2023, with asteroid missions, lunar rovers and aurora sightings. Plus a look forward to 2024, including launches of missions to asteroids and Jupiter's moons, and more commercial missions to the moon.

1
The "What the Heck" Particle 21:41

1 year之前21:41

21:41

Chris and Edward discuss the announcement of the detection of a highly energetic cosmic ray, dubbed "Amerterasu" or the "What the Heck" particle. Elsewhere, there is a new study of star formation in "pristine" dwarf galaxies, and the first every discovery of a disc around a star in another galaxy!

1
Planet Bashing and Dipsticks of the Universe 46:20

1 year之前46:20

46:20

Recorded in late October, Chris and Edward discuss recent proposals for an all-British mission to space, the launch of Psyche to...erm...Psyche, and Edward's involvement with the detection of something called a Synestia - planets bashing together. Cardiff University also hosted Prof Duncan Lorimer, who was jointly awarded the 2023 Shaw Prize for the detection of "Fast Radio Bursts". These mysterious cosmic events seemingly come form nowhere, but provide an intersting way of investigating energetic processes in the Universe. They also make a nice "dipstick of the Universe". Prof Lorimer spoke to Chris about their detection, what we're learning about them, and his career to date Contents: 00:00 British space mission 05:20 Psyche mission 10:15 Synestia and planet bashing 16:50 Prof Duncan Lorimer and Fast Radio Bursts…

1
Life, but not as we know it? 20:01

2 years之前20:01

20:01

Chris and Edward discuss some recent stories, such as tantalising possible (emphasis on the possible) detections by JWST of interesting molecules on an exoplanet which coul (emphasis on the could) indicate signs of life. There's also new data on Europa, also from JWST, showing carbon dioxide on its surface - what does this mean? And further afield, astronomers have used ALMA to measure magnetic fields in incredibly distant galaxies, opening a potential new way to study the early Universe.…

1
National Astronomy Meeting - part 2 30:10

2 years之前30:10

30:10

Dr Ian Harrisonreports from the National Astronomy meeting, which we held in Cardiff back in July. You can hear a couple of interviews we conducted on the previous episode, but in this episode we have a bit of a deep dive into machine learning with Ashley Spindler, what we mean by a modelling in astrophysics with Niall Jeffrey, and what we're learning from the cosmic microwave background with Dr Susanna Azzoni.…

1
NAM 2023 1:00:40

2 years之前1:00:40

1:00:40

July marked the UK's annual National Astronomy Meeting, which this year took place in Cardiff. Chris North, Edward Gomez and Ian Harrison discuss a few recent stories from this month and at the conference, including the Euclid space telescope launch, India's Chandrayaan 3 moon mission, gravitational waves from supermassive black holes, feeding black holes and exoplanets with metal rain. We also have interviews with University of Manchester's Dr Emma Alexander and University of Bristol's Dr Hannah Wakeford.…

1
Tidal Transients 44:37

2 years之前44:37

44:37

In 2020 astronomers spotted an object slowly getting brighter, but it wasn't until 2021 tha they quite understood how unusual it was. In 2021, they studied it in more detail, and found that it was something we don't think has ever been seen before. It was also the most energetic single event ever witnessed. Going by the catchy name of AT2021lwx, or simply "lwx" to its friends, this month we learn more about it. Dr Phil Wiseman, from University of Southampton, and Dr Cosimo Inserra, from Cardiff University, explain more. Elsewhere in the news, Chris North and Edward Gomez discuss how the JUICE mission has been jolting one of its antennas, the retirement of NASA's long-serving astronaut Peggy Whitson, and of course more from JWST.…

1
From exploding rockets to burping galaxies 30:44

2 years之前30:44

30:44

A news roundup of the last couple of months with Chris North and Edward Gomez. With a few failures - the SpaceX Starship launch, iSpace's moon landing and Virgin Galactic's bankruptcy, it might seem things are going wrong. But it's not all bad news - ESA's JUICE spacecraft has successfully launched on its way to Jupiter! Elsewhere in the Solar System, archives of data from the Magellan mission to Venus have revealed further evidence of a volcanic activity on the hard-to-reach surface of Earth's evil twin planet. And there's Phaethon, the unusual asteroid that is the source of the Geminid meteor shower, and about which the mystery has deepened. Much further afield, there's new research on what leads to quasars, the energetic "burps" of galaxies as their central black holes gorge themselves on infalling gas. And finally, there's the mystery of the "impossible galaxies" seen in one of JWST's first ever images, which turn out to be, well, less impossible!…

1
Black Holes: Saviours of the Universe? 56:59

2 years之前56:59

56:59

In terms of what might be called “pure science”, there’s one topic that tends to get people excited, and that's black holes. A few weeks ago, in February 2023, a pair of papers came out that linked theories about black holes to dark energy – something we really don’t understand. If correct, this could mean that black holes, by their very nature, could explain the accelerating expansion of the Universe. Black holes, of course, are often mis-understood. To find out a little more about them, Chris spoke to Dr Becky Smethurst, from University of Oxford. We also get into a few of the details about what the research suggests might be is going on, with lead author Dr Duncan Farrah from the University of Hawaii. Finally, it's back to Becky, who is sceptical about these new results.…

1
Staring at the Dawn of Time - part 2 30:00

2 years之前30:00

30:00

In the last month there was a show of the Northern Lights - or aurora - visible from the UK. If you didn't get to see it (spoiler: neither did we!), then you might get a chance in the future if there's another outburst. Edward Gomez and Chris North discuss how to increase your chances of seeing them next time there's an alert. In science news, some new thoughts on how the Moon could have formed, and an intriguing (and controversial) story about how balck holes might - possibly - be the answer to the mystery of dark energy. Chris also continues the conversation started in the last episode with Dr Ian Harrison and Dr Bob Watson about observing the cosmic microwave background. This time we discuss the advantages and challenges of launching in to space, and the problems caused by increasing numbers of satellites. There's also a new observatory being built in Chile - the Simons Observatory - which will present a huge leap forward in ground-based observations of the early Universe.…

1
Staring at the Dawn of Time - part 1 41:38

2 years之前41:38

41:38

Chris North and Edward Gomez discuss the first attempt to launch a rocket from UK soil, albeit via a piggyback on (or under) a plane. There's also an interesting supernova, the first exoplanet confirmation from JWST. Meanwhile, on Mars, does no news mean bad news for China's Zhurong rover? We also speak to Dr Ian Harrison, from Cardiff University, and Dr Bob Watson, from the University of Manchester, about the telescopes that are trying to unpick what happened at the dawn of time, by looking at the Universe's oldest light, and how a telescope in Tenerife is helping.…

1
Happy Birthday JWST 42:54

2 years之前42:54

42:54

The 25th December marks an anniversary in the world of astronomy (as well as Sir Isaac Newton's birthday, of course) - the launch of JWST, the infrared space telescope launched to explore the Universe in unprecedented detail. One year on from launch, Chris North and Edward Gomez look at a few of the results that have come in, on top of those we've covered previously. From our own solar system, to the birth of stars, and out towards the first galaxies, the results have covered a huge range of scales in both space and time. That's thanks to the remarkable scientific instruments onboard JWST, including cameras and spectrometers. But it's not just the formation of objects that it's looked at - JWST can give unique insights into the deaths of stars as well. Dr Mikako Matsuura and Dr Roger Wesson, both at Cardiff University, explain what they've been discovering about "planetary nebulae".…

1
The Future of Space Exploration 22:11

2 years之前22:11

22:11

With the Artemis I mission mid-mission (at the time of recording), Chris North and Edward Gomez look at what this means for the future of human space exploration, and more ambitious missions to the Moon (and beyond). Meanwhile, back here on Earth, the European Space Agency have announced their next crop of astronauts. The list includes three British astronauts, and in particular John McFall, the first para-astronaut. What does that mean for the diversity of people who can travel into space. In terms of science, we highlight the analysis of the atmosphere of an exoplanet, and studies of the structure of dust storms on Mars.…

1
On board with DART 27:44

2 years之前27:44

27:44

At the end of September, NASA's DART mission was deliberately crashed into the asteroid Dimorphos. Not carelessness, but a deliberate act with a view to testing planetary defense. After all, if we discover something large heading towards Earth, we might want to be able to nudge it off course. Here in Wales, the Comet Chasers team took a diversion from observing comets to looking at Dimorphos with the Las Combres Observatory global network of telescopes. But they weren't the ones doing the observing - that work is done by school children and members of the public at festivals and the like. Team members Cai Stoddard-Jones, Helen Usher and Prof Paul Roche explain the purpose of the mission, what it's taught us, and what contribution the school students have been making to "help NASA".…

1
Gravitational Field Trip - part 2 37:36

3 years之前37:36

37:36

This is the second part of a gravitational field trip to the LIGO Hanford Observatory in Washington State, in the US. Last month we talked about how the detectors work, and the scientists and engineers who operate them. This time, we take a longer-term look, not just into the future but also into the past, and ask what it took to get here, and what the future holds. Dr Mike Landry, Head of LIGO Hanford Observatory, and Dr Fred Raab, Associate Director of Operations at LIGO explains what it takes to run an observatory. We hear about some of the technical details from Dr Georgia Mansell. And Corey Gray explains his route to becoming a Senior Operatory at LIGO Hanford, and the impact of his Native American heritage.…

1
Gravitational Field Trip - part 1 48:09

3 years之前48:09

48:09

This month, we go on a field trip to the LIGO Hanford Observatory, one of a number of detectors that are searching for gravitational waves. In part one of this trip, we hear from a number of people working at the detector. Dr Mike Landry, Head of the LIGO Hanford Observatory, explains how, and crucially why, the experiment exists. Dr Fred Raab, Associate Director for Operations for LIGO, looks back to why the desolate landscape of Hanford was selected in the first place. Looking at the technical details, Drs Georgia Mansell and Craig Cahillane give some insights into commissioning and upgrading the detectors, while Corey Gray tells us about operating such a complex machine, and learning to fabricate one of the critical components - glass fibres that suspend the mirrors.…

1
Amateur Advances 33:29

3 years之前33:29

33:29

Amateur astronomers regularly make important contributions to astronomy research. That can be through observations of meteor showers, or images of solar system objects. But it's not always about pretty pictures, and some amateurs also make measurements that feed into our understanding of a broad range of astronomical phenomena, providing a network of telescopes that far outnumbers the professional astronomers. Ian Sharp is a member of a group of astronomers who have been making observations of something called "Post Common Binary Evolution" stars, two stars which have gone through an interesting phase of their evolution. The team carefully measure` the times at which one star appears to partially eclipse the other. By establishing when those eclipse vary differ from predictions the team can provide evidence to prove, or disprove, the existence of planets orbiting the stars. This requires careful observation and analysis, which the team of astronomers have been undertaking for a number of years. Their research is published in the Monthly Notices of the Royal Astronomical Society, a scientific journal used and respected by professional astronomers. Ian also discusses what got him into amateur astronomy, and how that has changed over the decades.…

1
Space Environmentalism 52:19

3 years之前52:19

52:19

In the 65 years since Sputnik 1 was launched in 1957, the number of artificial satellites in orbit has been increasing. In the last two years, the number of satellites has doubled, largely thanks to the huge "constellations" launched by companies such as SpaceX. The number of satellites has a detrimental impact on astronomical observations, both with professional telescopes and by amateur astronomers. Dr Meredith Rawls, from University of Washington, is planning observations with the Vera Rubin Observatory, while Professor Andy Lawrence is a Regius Professor at the Royal Observatory Edinburgh. With forecasts indicating up to 100,000 satellites in a matter of years, a 20-fold increase on today's numbers, there could be serious implications for astronomers around the world. But what has led to this increase in satellites? Dr Moribah Jah, co-founder and Chief Scientist at Privateer Space, explains why there are so many satellites being launched, and what the risks are both for satellites and down here on Earth. There are proposed solutions, but they require geopolitical collaboration. Further afield, this month saw the first images of Sagittarius A*, the supermassive black hole at the centre of our galaxy. Edward Gomez discusses the implications of the detection, and what it might tell us about the evolution of galaxies.…

1
Routine Spaceflight? 21:37

3 years之前21:37

21:37

1
Shadow of War 28:07

3 years之前28:07

28:07

With the invasion of Ukraine casting a shadow over the world, Chris North and Edward Gomez look at the impact of the war on astronomy and space science, mindful that these pale in importance when compared with the death and destruction taking place on the ground. From the international collaboration taking place on board the International Space Station, to the use of Russian rockets. Also at stake is the future of the Rosalind Franklin Rover, a European-Russian collaborative mission that was due to launch later this year. Elsewhere in the world, NASA have shown off their newest rocket - the Space Launch System, or SLS. The missions it allows should be impressive, but how does the huge price tag compare to other options? And finally, how does one de-detect a black hole? Sometimes in science, you have to take one step back to take two steps forward!…

1
Venus resurfaces 28:19

3 years之前28:19

28:19

Back in September 2020, the new broke that an unexpected gas, phosphine had been discovered in the atmosphere of Venus. While plans for making further measurements are progressing, the theoreticians have been hard at work modelling the atmosphere, and trying to explain how life could possibly exist in such a harsh environment Dr William Bains, of Cardiff University and MIT, is part of a team who have developed a model that helps explain how microbial life might make the atmosphere of Venus more hospitable. On the way, it also solves a few other mysteries about our nearest planetary neighbour's atmosphere. From an excess of water and oxygen to the disappearance of sulphur dioxide, and potentially non-spherical particles, could this be the solution that solves all of the mysteries?…

1
Radio repeater 41:49

3 years之前41:49

41:49

When a mysterious signal was found by an undergraduate student, Dr Natasha Hurley-Walker was perplexed. It was hiding in archival data from the Murchison Widefield Array (MWA), a large network of radio antennas in Western Australia. Based at the International Centre for Radio Astronomy Research, Natasha started to loop deeper. Repeating every 18 minutes, and initially found at only one frequency, the signal showed signs of being something astronomers have been searching for decades - radio transmissions from an intelligent species. It's not a much of a spoiler to say that it wasn't aliens (it's never aliens!), but repeating radio signals with this period hadn't been seen before, and were very hard to explain at first. This month, Natasha explains to Chris how the discovery unfolded, why it might have been aliens, why it wasn't aliens, what else it couldn't be, and what the current favourite theory is - something called a magnetar, but one which was behaving in a very unusual way.…

1
Mysterious travellers bearing gifts 33:58

3 years之前33:58

33:58

The first interstellar object to be discovered was 'Oumuamua, detected in 2017. Joined by Comet 2I/Borisov a couple of years later, astronomers are eagerly awaiting further discoveries of such objects, which were ejected from other solar systems. We explore what the link is between these interstellar objects and the history of star formation around the galaxy, thanks to new research by Prof Chris Lintott, Dr Ted Mackereth and Dr Michele Bannister. Chris and Ted explain how these two seemingly disconnected fields have led to new hypotheses about what we might learn from future observations.…

1
The Cosmic Webb 48:37

3 years之前48:37

48:37

The world of astronomy is eagerly awaiting the launch of the James Webb Space Telescope later in December. The telescope is not without controversy, but is set to revolutionise observations of the cosmos. Prof Pete Hargrave was responsible for building a calibration source for MIRI, the Mid-Infrared Imager, while Dr Tim Davis will be observing nearby galaxies to study the roles of black holes. Meanwhile, Dr Mikako Matsuura is hoping to study the final stages of stars' lives, while Dr Subi Sarkar will be using the full range of wavelengths the telescope's instruments will capture to understand the composition of atmospheres of planets beyond our Solar System.…

1
Lucy in the Sky with Trojans 41:31

3 years之前41:31

41:31

Back in 2015 the New Horizons spacecraft whizzed past Pluto on its way out of the Solar System. A few years later, as it continued on its way through the Kuiper Belt, it passed by a snowman-shaped object called Arrokoth. More recently, it's discovered two objects that are in fact four - binary objects comprised of two smaller objects orbiting each other. As Dr James Robinson, from the University of Edinburgh explains, the discovery of these objects is very useful for understanding the Kuiper Belt, and the different groups of objects within. In turn, that is important for understanding the formation of our Solar System. Closer in, the Lucy spacecraft has recently launched on its way out to the Trojan asteroids, location near Jupiter. The first mission to these unusual objects, Lucy will shed light on a type of object we've never seen before.…

1
Supernova Detective Story 22:31

4 years之前22:31

22:31

Way back in 1181 AD, astronomers in China and Japan recorded a "guest star" - something that we'd now call a supernova. Over 800 years later, astronomers made a connection between this ancient observation and more recent studies of a very unusual object that goes by the name of "Parker's Star". Prof Quentin Parker, from University of Hong Kong, explains how he and his team made the link, displacing a previously favoured object. And it seems that this was no common or garden supernova, but an incredibly rare "Type 1ax" supernova.…

1
It's the Small Things - Exomoons 32:47

4 years之前32:47