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A Free and Open Exchange of Ideas and Opinions on All Things Space. If it's above the Kármán Line, it's on our radar. Now at https://talkingspaceonline.com!
Episodes

Sep 13, 2026
Sep 13, 2026
57 min
It’s all hands on deck for the Talking Space Team as we examine the Nancy Grace Roman Telescope which began its three month journey to its permanent station-keeping point at Lagrange Point 2. Once there and fully commissioned, Roman will begin it’s initial 5 year mission, surveying billions galaxies to track how galactic structures change over time, hunting super novae to measure how the universe is expanding, and measuring weak gravitational lensing which tracks how the gravity of invisible dark matter warps the light of distant galaxies.
Roman is expected to locate up to 100,000 new exoplanets or more by monitoring millons of stars, using a process called gravitational microlensing which enables Roman to find even the smallest of planets around an observable star and will watch for any star tranists or dimming of stars which occurs when a planet blocks a fraction of light a star emits.
And as with all NASA missions, there is a tech demo planned. A new instrument, the Chronograph will act as a deep space “umbrella” of sorts, blocking the light of a star so that a planet that might be on orbit can be observed and recorded.
Our Kennedy Space Center chief correspondent Mark Ratterman was on site to document the launch day minus one activity and launch day itself that brought us the sound of five million pounds of thrust from the 27 Merlin engines of the SpaceX Falcon Heavy launch vehicle. Mark also interviewed Jeff Hanke, President of Space Systems and Mission Systems and Wendy Minotti, Program Manager, Exquisite Imaging, Space and Imaging Systems at L3-Harris, a critical member of the Roman Telescope team about their role in preparing the telescope’s mirror.
Roman carries the names of 1,350,144 people on a commemorative placard on board the spacecraft. If you missed your opportunity to get your name on the Nancy Grace Roman Telescope, you still have an opportunity to put your mark on the mission by adopting a pixel on Roman’s “First Light” image. Click here to go to the NASA page to reserve your pixel.
Use the following links to learn more about the Roman Telescope, Nancy Grace Roman the mother of the Hubble Space telescope and her legacy or current Roman Mission status.
Links to other resources and recorded events:
ROMAN L-1 Science Briefing (Video)
ROMAN L-1 Prelaunch News Conference (Video)
Roman Postlaunch News Conference (Video)
NASA's ROMAN Blog
https://science.nasa.gov/blogs/roman/
NASA ROMAN Instrument Details
https://science.nasa.gov/mission/roman-space-telescope/roman-observatory/
Adopt a Pixel on the Roman First Light Image
https://science.nasa.gov/mission/roman-space-telescope/adopt-a-pixel/
About Nancy Grace Roman ( Via American Association of University Women )
https://www.aauw.org/resources/faces-of-aauw/nancy-grace-roman-the-life-and-legacy-of-a-nasa-star/
Team Members This Week:
Gene Mikulka, Mark Ratterman, Dr. Kat Robison, Heather Smith.

Feb 21, 2024
Feb 21, 2024
51 min
It’ll do your heart good to have a listen to the IM-1 launch audio snippet at the opening of this episode. This episode finds us still focusing on the Intuitive Machines IM-1 lunar lander launch and lunar landing attempt to come later this week. Chantelle Baier from 4Space joins us once again to talk about the launch and the lunar landing, scheduled for February 22, 2024. Both Larry and Mark witnessed the LM-1 launch from Kennedy Space Center’s Banana Creek Launch Viewing Area at 1:05 a.m. on February 15th courtesy of 4Space.
But first, we have plenty of news in the roundup:
- Mark explains how NASA is looking for a new crew for a simulated year-long Mars mission ;
- Gene details the fallout from the recently announced Jet Propulsion Laboratory (JPL) layoffs due to the Federal budget impasse;
- Uruguay and Greece sign the Artemis Accords.
Next, the team and Chantelle discuss our impressions from the IM-1 launch, and hints at what may come next for 4Space. These lunar deliveries are part of NASA’s CLPS (Commercial Lunar Payload Services) initiative in support of the Artemis program. We’ll keep you informed as events unfold. We also discuss some details relating to the innovative EagleCam experiment aboard the lander. Some interesting video of the IM-1 after separation from the tumbling Falcon 9 upper stage can be found here.
Finally, Mark eagerly shares a bit of background on a couple of engineers at Boeing who are diligently working on getting the Starliner’s re-entry parachutes sorted and ready for flight. This is the kind of folks you want packing your parachutes.
Please be sure to let us know your thoughts on the topics we discuss. You can always reach us at mailbag@TalkingSpaceOnline.com . Our website now has a way to easily send us a voice message that we may use on the show: just click on the blue microphone icon at the bottom right of any page at TalkingSpaceOnline.com.
Show recorded 02-17-2024.
Host: Larry Herrin
Panelist(s): Gene Mikulka, Mark Ratterman and special guest Chantelle Baier (Dr. Kat Robison and Sawyer Rosenstein will return)
Podcast Editor: Larry Herrin
IM-1 Falcon 9 launch photo credit: SpaceX

Feb 27, 2022
Feb 27, 2022
1 hr 29 min
On a very SpaceX-centric edition of Talking Space to start 2022, The team looks at the SpaceX Polaris Program that hopes to test elements needed for operating the SpaceX Starship, including the first Extra-Vehicular Activity or Spacewalk for a private space mission.
We take a look at the SpaceX Starship update event held at the SpaceX Boca Chica, Texas, on February 11th, which was heavy on theater but light on news. There are also questions on the future status of the SpaceX Boca Chica location (AKA “Starbase”) due to environmental concerns, and the FAA has pushed back the decision on certifying the location for launching orbital flight missions due to the number of petitions filed. We explore the reasons for the controversy.
There has been a delay in the rollout of the Space Launch System rocket for the Artemis 1 mission, and we explore the reasons for the delay.
We wrap up with some good news on the International Space Station mission receiving an extension into the year 2030 and the progress being made on the commissioning of the James Webb Space Telescope.
All this on this first edition of Talking Space for 2022!
Show recorded: 2-14-2022
Host: Sawyer Rosenstein
Panelists: Gene Mikulka, Mark Ratterman

Oct 6, 2021
Oct 6, 2021
1 hr 21 min
If it seemed like average people flying into space was something from the future, this episode is proof that the future is now...or is it?
In this episode of Talking Space, we start with the launch of the first all-civilian orbital mission, Inspiration 4. We report what it was like from the grounds of the press site (including some fantastic Falcon 9 launch audio) and the reception it received from the public. However it's not all cheers to a new era of spaceflight as some of our team members and the public say space isn't for everyone just yet.
We also discuss the upcoming private Axios mission to the International Space Station getting a launch date, and how the launch of a Russian actress is delaying important work to the newly-installed Nauka modules, which has had some issues from the moment it arrived at the station.
We then dive into the delays for the Human Landing System because of a lawsuit. The question remains, even without the lawsuit, is 2024 still viable to land on the moon?
We then also discuss the reorganization of NASA's Human Exploration and Operations Mission Directorate. It left a lot of questions about what that means for the agency, especially this far along with Artemis, which we hope to answer.
Finally, we've heard about unruly passengers on commercial flights, but our FAA expert Mark Ratterman looks into what might happen if you get an unruly passenger on a spaceflight.
Host: Sawyer Rosenstein
Panelists: Gene Mikulka, Mark Ratterman, Dr. Kat Robison

Apr 12, 2021
Apr 12, 2021
1 hr 27 min
This episode is full of plenty of rockets and missions going up....and one that went down explosively.
On this episode, we begin with two crew launches. First the Soyuz MS-18 mission and why an American astronaut was added only a few months before launch. Plus a quick look ahead to Crew-2 aboard a Crew Dragon, and a possible new tradition started by the crew.
Next it's on to Mars, where the Ingenuity helicopter is set to take off. This isn't just significant for future Mars exploration. We go into the potential historical impact of a mini helicopter flying on another world.
Then it's onto the nominee for NASA's next administrator, former Senator Bill Nelson (D) Florida. Former administrator Jim Bridenstine thinks it's a good pick, but what does the panel think?
Then it's onto SpaceX. First, the farewell to Ms. Tree and Ms. Chief, the fairing recovery ships. What does this mean for reusability.
Last but no least, it's all about SN-11, the Starship test flight from Boca Chica (or Starbase depending on your preference) Texas. The mission went up under heavy fog before exploding before landing. What does this mean for the program? Can you still get enough data from just telemetry as opposed to visuals? What led to the decision to fly on that day and how is the FAA somehow involved? Also, is SpaceX learning from these test flights or is it just for show? We look at all these questions and more.
Show recorded 4-7-2021
Host: Sawyer Rosenstein
Panelists: Gene Mikulka, Mark Ratterman,

Mar 22, 2021
Mar 22, 2021
1 hr 23 min
One week, three crafts, one planet. On this first episode of Season 13 we're aiming for Mars.
We discuss three successful missions arriving at the red planet within one week of each other, the "Hope" mission from the United Arab Emirates, China's Tianwen-1 Mission, and the most discussed mission of the three, NASA's Perseverance Rover. We go into all of the amazing firsts so far, and what the mission should accomplish during its time on the red planet. Also, find out why Mark doesn't like calling the rover "Percy".
Next, we discuss the future for RocketLab, including their CEO literally eating their hat as they announce the design of a new rocket.
Finally we discuss the Inspiration 4 mission, which will send ordinary people to space along with helping a good cause...but is it really giving anybody a chance to go, or is it favoring certain people more than others?
Show recorded 3-1-2021
Host: Sawyer Rosenstein
Panelists: Gene Mikulka, Mark Ratterman, Dr. Kat Robison

Dec 5, 2020
Dec 5, 2020
1 hr 13 min
From the Earth to the Space Station to the Moon, Talking Space is proud to be a part of history!
On this episode of Talking Space, we discuss the successful launch of the Crew-1 mission, sending four astronauts to the International Space Station.
We discuss all of the major historical achievements made during this mission. We also discuss what the atmosphere is like at the press site for a crew launch, in particular during a pandemic, and if the fan fare and unique feeling of a crew launch still exist.
We also end up discussion fashion and whether the public was really interested in this launch.
Next we discuss Rocket Lab's foray into reusability, and discuss the one thing we wish we knew to determine if reusability, especially from a company like SpaceX, is feasible.
We also discuss China's successful landing on the moon and the scientific and cultural significance of this mission.
Finally we say farewell to the Arecibo Radio Telescope, which has collapsed since this was recorded. We look into the main factors that led to the crash, since we believe it wasn't just storms or wear-and-tear behind the damage.
Show recorded 11-25-2020
Host: Sawyer Rosenstein
Panelists: Gene Mikulka, Mark Ratterman, Kat Robison

Nov 2, 2020
Nov 2, 2020
1 hr 1 min
On this episode of Talking Space, we go from the high-highs of space exploration to the low-lows of launch scrubs.
We begin with the announcement of water being found on the light side of the moon. We talk about the unique way it was actually discovered...and what we need to know before we can mine it and use it during future missions.
Then it's onto the continuing story of OSIRIS-REx, which successfully captured its sample from asteroid Bennu. We'll look at the unexpected issue it encountered and why every sample won't be studied when it returns to earth.
Then it's a review of "Scrubtember" and "Scrubtober" which saw an entire month without a U.S. launch, and Talking Space was there for many of them. Hear what it's like to scrub with an engine fire...then scrub again...then scrub another time as the press grows anxious and frustrated, and what it took to finally break the bad luck streak.
Next new crewmembers are now aboard the ISS, including the historic way they got to the station...and why the next crew will also make history.
After that, do you know how many different groups or organizations need to get clearance before a rocket can launch from the U.S.? Mark Ratterman takes us inside licensing for rocket launches and landings.
Finally, we go in-depth into the Artemis Accords, the follow-up to the Outer Space Treaty, and the one article in particular that could cause problems as private companies begin mining the moon, Mars, and asteroids.
Show recorded10-27-2020
Host: Sawyer Rosenstein
Panelists: Mark Ratterman, Kat Robison

Aug 18, 2020
Aug 18, 2020
1 hr 21 min
On this episode of Talking Space, we tackle two major stories, the launch of Mars 2020 and the landing of Crew Dragon Endeavour.
We start with the launch of the Perseverance rover and the Ingenuity helicopter. We look at some of the unique items onboard, as well as listen to the launch audio we recorded from a few miles away. In addition to the mission, we talk about what it's like to cover a launch during a pandemic (with special thanks to the 45th Space Wing) and how a Mars spacecraft sterilizer is helping in the fight against COVID-19.
Then it's onto SpaceX and the successful return of the Crew Dragon capsule from the ISS. We look at the successes and some of the items they found need to be improved, including stray boats and possibly toxic hypergolic fuels.
Finally, we debate a tweet by President Donald Trump about the state of NASA. Mark and Gene get into an interesting debate over the state of the space program and who we can thank for where we are today.
Show recorded 8-10-2020
Host: Sawyer Rosenstein
Panelists: Gene Mikulka, Mark Ratterman

Jun 14, 2020
Jun 14, 2020
1 hr 23 min
On this special episode of Talking Space, we devote the entire episode to the successful launch of Doug Hurley and Bob Behnken to the International Space Station.
The crew successfully launched in their Crew Dragon capsule on Demo-2, marking the first time humans have launched from the US since the end of the shuttle program in 2011.
We go through the differences between Space Shuttle and Crew Dragon all the way from the suit-up room to orbit.
We discuss the origins behind the spacecraft's name, Endeavour, along with a stow-away. We also talk about the small, New Jersey group that played a major role in the design of one of the aspects of the capsule.
Then it's a look at their mission so far and what's to come. Plus, we've heard so many people try and take credit for the commercial crew program, so how did we get to Demo-2?
Finally we reflect on the significance of the launch during a time of civil unrest and amidst a pandemic.
Show recorded 6-7-2020
Host: Sawyer Rosenstein
Panelist: Gene Mikulka
