A Trip to Space

著者： Ryan Morrison
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  • An exploration of space, the orbital economy and the people involved. A weekly podcast presented by science and technology journalist Ryan Morrison featuring a range of guests and features including Exoplanet of the Week.

    Hosted on Acast. See acast.com/privacy for more information.
    Ryan Morrison
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An exploration of space, the orbital economy and the people involved. A weekly podcast presented by science and technology journalist Ryan Morrison featuring a range of guests and features including Exoplanet of the Week.

Hosted on Acast. See acast.com/privacy for more information.
Ryan Morrison
地球科学 天文学
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  • Episode 10: A Trip into the Deep Past

    Episode 10: A Trip into the Deep Past
    2021/06/29
    Space newsHubble still down: NASA is trying to fix the HUBBLE SPACE TELESCOPE after a memory module failure forced the agency to shut down the iconic orbiting observatory. The problem is with the payload computer, which halted o June 13, stopping hte spacecraft from collecting science data. The telescope andother instruments are all working as expected, but they rely on the payload computer to operate.Over the next week, the team will continue to assess hardware to identify if something else may be causing the problem. Thousand sign up to fly to space: The European Space Agency (ESA) is looking for six astronauts to join its core, as well and 20 reservists from academia.They will travel to the International Space Station (ISS) and one day on to the NASA Lunar Gateway that will be in orbit around the Moon.A total of 22,589 people have applied, and submitted a valid medical certificate, in the hope of going into the next round. The six will be confirmed late in 2022.  Are they watching us? There could be as many as 29 potentially habitable worlds ‘perfectly positioned' to observe the Earth if they hold an intelligence civilisation, according to a new study.Exploring ways in which we find exoplanets, that is worlds outside the solar system, the team from Cornell University reversed the process to see which could spot us. While exoplanets haven't been detected around all of the stars that can observe the Earth, the team estimate 29 will have a rocky world in the habitable zone that are well positioned to also detect radio waves emitted by humans over 100 years ago. A Virgin licence: Space tourism firm Virgin Galactic has been given the go ahead by the FAA to take paying customers to the edge of space, in a first for the aviation industry. The firm said there were still three test flights to go before it takes the first commercial astronauts next year, but this is an important step in that journey.The new licence from the Federal Aviation Authority (FAA) gives the firm the right to send paying customers into space, and not just as part of a test flight.Upcoming launchesThis week: SpaceX Falcon 9 • Transporter 2 from Cape Canaveral Space Force Station, Florida. A SpaceX Falcon 9 rocket will launch the Transporter 2 mission, a rideshare flight to a sun-synchronous orbit with numerous small microsatellites and nanosatellites for commercial and government customers. June 29: Soyuz • Progress 78P from Baikonur Cosmodrome, Kazakhstan. A Russian government Soyuz rocket will launch the 78th Progress cargo delivery ship to the International Space Station. The rocket will fly in the Soyuz-2.1a configuration. Delayed from March 19.July 1: Soyuz • OneWeb 8 from Vostochny Cosmodrome, Russia. A Russian Soyuz rocket will launch 36 satellites into orbit for OneWeb, which is developing a constellation of hundreds of satellites in low Earth orbit for low-latency broadband communications. The Soyuz-2.1b rocket will use a Fregat upper stage.July: Falcon 9 • Starlink from Vandenberg Space Force Base, California. A SpaceX Falcon 9 rocket will launch on the first dedicated mission with Starlink internet satellites from Vandenberg Space Force Base. This mission will deploy an unspecified number of Starlink satellites into a high-inclination orbit.Exoplanet of the week: TYC 8998-760-1 cThis hot, very large planet is the second to be directly imaged – that is, pixels of light captured by telescope from the planet itself – as it orbits a Sun-like star some 300 light-years away. An international team of scientists published its discovery of the star's first directly imaged companion in February 2020.Key facts: These two planets – TYC 8998-760-1 b and now, c – are considered the first multi-planet system to be directly imaged around a Sun-like star. The star is a baby version of our Sun, only 17 million years old. The extreme youth of this system is a big part of why astronomers were able to capture direct images: The planets are so hot from their recent formation that they still glow brightly enough to be seen from our vantage point, even though they're hundreds of light-years away.This image, captured by the SPHERE instrument on ESO’s Very Large Telescope, shows the star TYC 8998-760-1 accompanied by two giant exoplanets. This is the first time astronomers have directly observed more than one planet orbiting a star similar to the Sun. The image was captured by blocking the light from the young, Sun-like star (on the top left corner) using a coronagraph, which allows for the fainter planets to be detected. The bright and dark rings we see on the star’s image are optical artefacts. The two planets are visible as two bright dots in the centre and bottom right of the frame.Details: Planets b and c are much farther away from their star than, say, Jupiter and Saturn are from the Sun. Planet b is 160 times the Earth-Sun distance, planet c is about 320 times. Just for comparison, Jupiter is 5 times the ...
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    29 分
  • Episode 9: A Trip to Strange Stars

    Episode 9: A Trip to Strange Stars
    2021/06/21
    This week in space newsChina in space: The Chinese Space Agency has sent a trio of astronauts to spend the next three months of the Tiangong space station. This is a brand new modular space station built and operated by China and they arrived on a Chinese spaceship sent up on a Chinese-made rocket.The Chinese and Russian space agencies will also work together to begin construction of a base on the surface of the moon in 2026, due for completion by 2036 – but they won't be sending astronauts until after it is fully operation and the robots have had a chance to explore.Boeing boeing … going? NASA is working with Boeing on sending the Starliner crew capsule into space for another test this July. Starliner was originally due to be operational, ferrying crew to the ISS last year, working alongside the SpaceX Crew Dragon, but it has been hit by problems. For the new test Starliner will launch atop a United Launch Alliance Atlas 5 rocket without a crew on board. IF it goes to plan the first crewed mission could be towards the end of this year with astronauts Barry Wilmore, Nicole Mann and Mike Fincke on board.Betelgeuse had gas! The red supergiant star betelgeuse, found on the shoulder of the hunter in Orion's Belt, which began mysteriously dimming last year was just being blocked by a cloud of gas and dust, according to a new study.Astronomers from France created a computer simulation based on images from the Very Large Telescope in Chile to determine the Great Dimming was caused by the star ejecting a bubble of gas and giant blobs of plasma moving on its surface. The temperature drop from the giant blobs led to the creation of an opaque dust which dimmed its appearance when viewed from Earth.Making space sustainable: The World Economic Forum has launched a new Space Sustainability Rating, designed to shed light ont he problem of space junk and the impact it is having on our orbital evnironment. The argument is that it is a problem one single government can't solve, with rules and enforcement from multile nations required to solve the problem.It will work like nutrition and energy efficiency labels, making it clear what companies and organisations are doing to improve the near-Earthenvironment.In other news: NASA has a new deputy administrator, after former astronaut Pam Pelroy was confirmed by the senate, and the opportunity to apply to be a European Space Agency astronaut has passed. The deadline for entries closed on Friday June 18th.Launches this weekJune 24: Launch site: SLC-40, Cape Canaveral Space Force Station, Florida – A SpaceX Falcon 9 rocket will launch the Transporter 2 mission, a rideshare flight to a sun-synchronous orbit with numerous small microsatellites and nanosatellites for commercial and government customers. Moved up from July.June 25: Launch site: Plesetsk Cosmodrome, Oblast, Russia – A Roscosmos Soyuz 21.b will send a Russian military intelligence ELINT satellite into heliosynchronous orbit.Exoplanet of the weekHD 209458 b (nickname “Osiris”)The first planet to be seen in transit (crossing its star) and the first planet to have it light directly detected. The HD 209458 b transit discovery showed that transit observations were feasible and opened up an entire new realm of exoplanet characterization.The planet is 1.3 times larger than Jupiter, or about 220 times the size of the Earth in terms of mass. It orbits very very close to its star – just one eight that of Mercury around the Sun – going around its star every 3.5 days.That means a year on Osiris is just 3.5 Earth days – meaning you'd have over 100 birthdays per Earth year if you somehow managed to live on the strange hot world.Although given it is a gas giant, based on both the high mass and volume, there wouldn't be much of a surface to stand on if you did visit.It belongs to a type of extrasolar planet known as ‘hot Jupiters' – Giant, gaseous planets in low orbits – with a surface temperature more than twice that of Venus – at a whopping 1,000 degrees Celsius.It's about 150 light years from Earth and the parent star is a 8th magnitude G-type main sequence star slightly larger than the Sun found in the constellation of Pegasus and visible with a good small telescope.If you want to try and find it: Right ascension22h 03m 10.7728sDeclination+18° 53′ 03.550″The planet was first discovered in 1999 and shot to fame in 2009 after astronomers announced ‘water vapour' in the atmosphere – with follow up studies suggesting it is an example of a ‘carbon planet'.On 23 June 2010, astronomers announced they have measured a superstorm (with windspeeds of up to 7000 km/h) for the first time in the atmosphere of Osiris, which has extremely hot day side and a cooler night side.It was the first planeetary atmosphere outside the solar system ot be measured, and by 2004 astronomers found an enourmous envelope of hydrogen, carbon and oxygen around the planet reaching temperatures of 10,000 Kelvin. The ...
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    36 分
  • Episode 8: A Trip Beyond the Edge

    Episode 8: A Trip Beyond the Edge
    2021/06/14
    This week on the show we look at the European Space Agency's planned trip to Venus, new competition for SpaceX in the launch market and what is a solar eclipse?We also launch a new feature – exoplanet of the week – where I trawl through NASAs vast exoplanet archive, pick one that looks interesting and go on a virtual vacation.Envision is the name of the new ESA mission to Earth's ‘evil twin,' as the agency puts it. The probe will study the atmosphere nature and explore down to the core of the inhospitable world.It will launch in the early 2030s and include NASA instruments, making it compatible with the DAVINCI+ and VERITAS missions being sent to the world by the US agency.Sticking with the European Space Agency, ESA has announced its science themes as part of its Voyage 2050 planning, outlining projects and missions that will happen from the 2030s onward.‘The selection of the Voyage 2050 themes is a pivotal moment for ESA’s science programme, and for the future generation of space scientists and engineers,' says Günther Hasinger, ESA Director of Science.Themes include habitability of the moons of the outer planets in the solar system, a search for temperate exoplanets and the less accessible regions of the Milky Way galaxy and probes of the early Universe.SpaceX has more competition, this time in the form of the Relativity Space, 3D printed and fully reusable Terran R rocket, that will take on the Falcon 9.It is a few years away from launch but a new $650 million funding round could bring that closer to reality sooner than previously expected, making them the latest, after Rocket Labs, to enter this heavier lift market.Speaking of rocket firms, Jeff Bezos, the founder of Amazon and Blue Origin, announced he'd be heading to space on the New Shepherd rocket on July 22. This flight will go up to about 100km, have 10 minutes weightless and return.This could make Bezos the first of the three billionaire space firm founders to make it up into space on their own launch vehicle – beating out Sir Richard Branson, who is due to go up on VSS Unity later this year. View this post on Instagram A post shared by Jeff Bezos (@jeffbezos)However, Branson confirmed that he was looking to go up on an earlier test flight – possibly the very next trip – potentially allowing him to beat Bezos into space by a few days or weeks.This week also saw a partial solar eclipse across the UK and US, as well as a full ‘ring of fire' eclipse in Canada, Greenland and Russia – but what is an eclipse and when is the next one?I explore these questions and more, as I take a slightly more detailed look at our star and the unique relationship between the Earth, Moon and Sun.Finally, Perseverance is heading south on Mars to explore the ancient lakebed of Jezero Crater in a bid to find traces of ancient microbial life. This marks the end of system testing, and the start of the true purpose for the rover on the Red Planet. Driving to a low-lying scenic overlook to survey some of the oldest geologic features within the crater.Exoplanet of the week: Kepler-452b (Earth's Cousin)Classic SciFi read: HG Well's A Modern Utopia – Chapter 5The post Episode 8: A Trip Beyond the Edge first appeared on Ryan Morrison. Hosted on Acast. See acast.com/privacy for more information.
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    1 時間 5 分

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