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Weekly Space Hangout - Bringing Exoplanets Into Focus, Bit By Bit, With Alex Madurowicz

The 365 Days of Astronomy

Release Date: 05/20/2022

Observing With Webb - July Episode show art Observing With Webb - July Episode

The 365 Days of Astronomy

Welcome to Observing With Webb, where a high school astronomy teacher tells you what you’re looking at, why it’s so cool, and what you should check out later this month…at night. 2022 is the summer of morning planets!  Jupiter, Saturn, Mars, and Venus are all quite prominent, with Mercury stopping by in June.  Throughout the summer, get up early to see the weeks where the Moon drives by the planets, and maybe catch a few meteors in August, as some of the planets return to the evening skies.    We've added a new way to donate to 365 Days of Astronomy to support...

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Weekly Space Hangout - Focusing JWST with Lee Feinberg, Optical Telescope Manager show art Weekly Space Hangout - Focusing JWST with Lee Feinberg, Optical Telescope Manager

The 365 Days of Astronomy

Host: Fraser Cain ( )Special Guest: Since JWST launched in December, 2021, we have been holding our collective breath as it made its way to its final home at the L2 Lagrange point. Throughout its approximate month-long journey, JWST systematically worked through a complicated series of deployment and commissioning procedures, including the all-critical focusing and alignment of the telescope's 18 primary mirror segments using 132 different actuator motors. On April 29, 2022, it was announced that focusing and alignment had completed successfully. Tonight, we are joined by Lee Feinberg,...

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Actual Astronomy - What to Observe in July 2022 show art Actual Astronomy - What to Observe in July 2022

The 365 Days of Astronomy

Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. - Paper star charts or cell phone software? - Arcturus in the daytime sky! - July 7th, 1st qtr Moon, Rupus Recta, the Lunar Straight Wall visible. - July 13th, Full Moon. - Jul 14th, Saturn 4° from the Moon. - Jul 18th, Neptune is 3° from the Moon. - Jul 19th, Jupiter is 2° from the Moon. - Jul 21st, Mars 3° from the Moon. - Jul 22nd, the Lunar “Curtis X” is visible. - Jul 26th, Venus is 3.5° from the Moon. - Jul 28th, New Moon. - Jul 29th, Delta Aquariad meteor shower! - Comet C/2017 K2 (PanSTARRS)....

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Guide To Space - How Are We Searching For Dark Matter? show art Guide To Space - How Are We Searching For Dark Matter?

The 365 Days of Astronomy

Whenever I mention dark matter in anyway in the Guide to Space, or in a questions show, I get a bunch of responses that have essentially the same point. Astronomers are just speculating, why do they even think dark matter is a thing?   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.  Just visit: and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too!  Every bit helps! Thank you! ------------------------------------ Do go visit for cool Astronomy Cast and CosmoQuest...

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The Daily Space - A New Method Finds Four Brown Dwarfs show art The Daily Space - A New Method Finds Four Brown Dwarfs

The 365 Days of Astronomy

Using data from the fabulous Gaia mission, researchers have detected four new brown dwarfs as well as several other unusual companions to 25 stars in the Milky Way. Plus, Yellowstone, Earth’s magnetic field, hot Jupiters, and a review of the first episode of The Orville: New Horizons.   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.  Just visit: and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too!  Every bit helps! Thank you! ------------------------------------...

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Astronomy Cast Ep. 647: Best Sci Fi Beach Reading show art Astronomy Cast Ep. 647: Best Sci Fi Beach Reading

The 365 Days of Astronomy

— Part 1… — Part 2 Summer’s here! And that means finally tackling that huge list of books piled up on your bedside table and filling up your Kindle. What books do we recommend for some fun reads this summer?   - The Kaiju Preservation Society by John Scsalzi - Space Opera by Katherine Valente - The Culture series by Iain M. Banks (The Player of Games) - Six Wakes by Mur Lafferty - Marco and the Red Granny by Mur Lafferty - Reamde and The Fall by Neil Stephenson - Bobiverse series by Dennis E. Taylor - Project Hail Mary by Andy Weir - Childhood’s End by Arthur C. Clark - Lagoon...

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Travelers in the Night Eps. 611 & 612: Aurora Mysteries & Day and Night show art Travelers in the Night Eps. 611 & 612: Aurora Mysteries & Day and Night

The 365 Days of Astronomy

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. Today's 2 topics: - Auroral displays contain a continuous pattern of shifting colors and shapes in the night sky following a geomagnetic storm. - Ongoing  research is revealing how changes in very low levels of light at night have positive and negative influences on chronic conditions like mood disorders, obesity, and cardiovascular problems.   We've added a new way to donate to 365 Days of Astronomy to...

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The Cosmic Savannah - Ep. 33: Mars Rovers & the SANSA show art The Cosmic Savannah - Ep. 33: Mars Rovers & the SANSA

The 365 Days of Astronomy

Hosted by Dr. Jacinta Delhaize & Dr. Daniel Cunnama. February 18, 2021 saw NASA’s latest Mars Rover, Perseverance, land on the red planet. We are joined by Tiaan Strydom, the Business Development Manager at the South African National Space Agency (SANSA) to discuss the landing and SANSA’s role in it, as well as various other contributions SANSA is making to space exploration.   During the landing, the rover will enter the thin Martian atmosphere at over 20,000 km/h. The rover will be slowed firstly by a parachute and then by boosters to slow the rover down to about 3 km/h....

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Weekly Space Hangout - Former NASA Deputy Administrator Lori Garver and Her New Memoir Weekly Space Hangout - Former NASA Deputy Administrator Lori Garver and Her New Memoir "Escaping Gravity"

The 365 Days of Astronomy

Host: Fraser Cain ( )Special Guest: This week we are honored to welcome former NASA Deputy Administrator Lori Garver to the Weekly Space Hangout. Her new memoir, Escaping Gravity (Diversion Books, June 21, 2022), offers a "first-hand account of how a handful of revolutionaries managed to outmaneuver the system of political patronage and bureaucracy that threatened the space agency and the future of human spaceflight. From inside NASA, Garver drove changes to policies and programs that enabled competition that challenged the expensive and ineffective traditional systems at the exact time the...

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UNAWE Space Scoop - Cosmic Duet show art UNAWE Space Scoop - Cosmic Duet

The 365 Days of Astronomy

Astronomers have just captured a new image of a beautiful sort of “dance” between two galaxies: the spiral NGC 1512, it’s the pretty, large, barred spiral in the picture, and its small neighbor NGC 1510.    You’ll find a link to the picture here:   They’re located in the direction of constellation Horologium, or The Clock, some 60 million light-years from us, in Earth’s southern sky. Such galaxy mergers are common. Our own Milky Way is currently merging with several dwarf galaxies, most prominently the large and small Magellanic Clouds.   We've added a...

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More Episodes

https://youtu.be/fFIlz3Z9WIA

Host: Fraser Cain ( @fcain )
Special Guest: Gravitational lensing has been used to discover far-distant galaxies that are obstructed from view thanks to the inconvenient positioning of astronomical interlopers. Recently, researchers have begun asking if this same lensing technique could be adapted to use the gravity of OUR SUN to suss out never-before seen details of the more than 5000 exoplanets discovered to date. It is thought that by aligning the sun in a straight line between a space-based telescope and an exoplanet, exoplanet images could be obtained. But this would require a lot of fuel and time.

 

Tonight's guest is Alexander Madurowicz, PhD candidate at Stanford University. Alex has developed an algorithm that reconstructs an exoplanet's surface using a single, annular image acquired by looking directly at the sun. Light from this ring is then undistorted by reversing its having been bent by the gravitational lens (i.e., our Sun,) which yields the ring of light being turned back into a whole, round planet. This method of imaging exoplanets was presented in a paper published in The Astrophysical Journal on May 2, 2022. [https://iopscience.iop.org/article/10...]

 

Alex Madurowicz is a Physics PhD candidate at Stanford University. His research interests are in astronomical instrumentation, specifically for the direct imaging of extrasolar planets. He works with his advisor Bruce Macintosh and other collaborators from universities around the world on the Gemini Planet Imager project.

 

The Gemini Planet Imager combines adaptive optics and coronagraphy to correct distortions from Earth’s atmosphere and obscure noise from host stars to directly observe planets which millions of times fainter than the stars they orbit. He has also worked on speculative instrument designs such as star shades and the solar gravitational lens which could revolutionize the future of exoplanet imaging.

 

You can read more about this technique here: https://phys.org/news/2022-05-scienti...

Regular Guests:

Dr. Kimberly Cartier ( http://KimberlyCartier.org & @AstroKimCartier )

Beth Johnson - SETI Institute ( @SETIInstitute & @planetarypan )

Ashley Walker ( https://www.blackinastro.com/ @That_Astro_Chic )

This week's stories:

- Voyager 1 glitch!

- Insight powering down. :^(

- The possibility that Ceres moved. Quite a ways into the inner solar system.

- Leaky helmets!

 

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!

Share the podcast with your friends and send the Patreon link to them too! 

Every bit helps! Thank you!

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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].