Space Stories: Dragonfly Issues, NASA Under a Government Shutdown, and Threats from Venus

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Image (Credit): Artist’s rendering of the Dragonfly on Titan. (NASA/Johns Hopkins APL)

Here are some recent space-related stories of interest.

—Physics World: “NASA Criticized Over its Management of $3.3bn Dragonfly Mission to Titan“

An internal audit has slammed NASA over its handling of the Dragonfly mission to Saturn’s largest moon, Titan. The drone-like rotorcraft, which is designed to land on and gather samples from Titan, has been hit by a two-year delay, with costs surging by $1bn to $3.3bn. NASA now envisions a launch date of July 2028 with Dragonfly arriving at Titan in 2034.

—USAToday: “Do Rockets Still Launch During a Government Shutdown? How NASA Could Feel the Effects“

NASA is far from immune to the effects of a looming government shutdown if congressional leaders fail to reach an agreement before midnight Oct. 1 to prevent one. At stake for the U.S. space agency if the federal government grinds to a halt? The progress of many of its science missions and access to its public outreach arm. NASA’s contingency plan for a shutdown, outlined in a guide from 2018, emphasizes that only “activities which are necessary to prevent harm to life or property” would be exempt from ceasing operations during a shutdown.

—Earth Sky: “‘Invisible’ Asteroids Near Venus: A New Danger to Earth?“

Astronomers across the globe are dedicated to identifying the near-Earth asteroids that could one day impact our planet. But there might be a group of potentially dangerous nearby asteroids that have remained invisible to astronomers so far. On September 24, 2025, an international team of researchers at the São Paulo State University (UNESP) in Brazil said that a group of asteroids sharing Venus’ orbit could have remained undetected so far due to their location in the sky. And they could pose a threat to Earth within a few thousand years.

Space Stories: NASA Aircraft Assist with Texas Flood, Chinese Satellites Do Something New, and Venus May be Probed by the UK

Posted on by onespaceman2000
Credit: Image by Photorama from Pixabay.

Here are some recent space-related stories of interest.

—NASA “NASA Aircraft, Sensor Technology, Aid in Texas Flood Recovery Efforts“

In response to recent flooding near Kerrville, Texas, NASA deployed two aircraft to assist state and local authorities in ongoing recovery operations. The aircraft are part of the response from NASA’s Disasters Response Coordination System, which is activated to support emergency response for the flooding and is working closely with the Texas Division of Emergency Management, the Federal Emergency Management Agency (FEMA), and the humanitarian groups Save the Children and GiveDirectly.

—Newsweek: “China Appears to Pull Off Satellite Feat That NASA Has Never Achieved“

Two remote-controlled Chinese satellites appear to have docked in high orbit to allow refueling and servicing for the first time. The achievement, which has yet to be matched by the U.S, involved autonomous spacecraft Shijian-21 and Shijian-25, completing the task in geostationary orbit earlier this month. Geostationary orbits occur at 22,236 miles above the surface, and are typically used for communications satellites so that they can move with the rotation of the Earth. However, the high orbit and need for satellites to maintain speeds with the Earth’s rotation makes docking extremely difficult.

—Royal Astronomical Society: “Life on Venus? UK Probe Could Reveal the Answer“

The answer to whether tiny bacterial lifeforms really do exist in the clouds of Venus could be revealed once-and-for-all by a UK-backed mission. Over the past five years researchers have detected the presence of two potential biomarkers – the gases phosphine and ammonia – which on Earth can only be produced by biological activity and industrial processes. Their existence in the Venusian clouds cannot easily be explained by known atmospheric or geological phenomena, so Cardiff University’s Professor Jane Greaves and her team are plotting a way to get to the bottom of it. Revealing a new mission concept at the Royal Astronomical Society’s National Astronomy Meeting 2025 in Durham, they plan to search and map phosphine, ammonia, and other gases rich in hydrogen that shouldn’t be on Venus.

Podcast: Winter is Coming? I Hope Not

Posted on by onespaceman2000

If you missed this podcast three years ago, you will want to catch it now. I listened to it again and enjoyed it just as much as last time.

The Startalk podcast episode it titled “Nuclear Winter with Ann Druyan and Brian Toon” was first broadcast on August 9, 2022, but it was shared again this past July 4th.

Here is a summary of what you will hear:

Are advanced civilizations doomed to destroy themselves? On this episode, Neil deGrasse Tyson and co-host Chuck Nice explore the Cold War, The Drake Equation, and Carl Sagan’s work on the nuclear winter hypothesis with producer of Cosmos and Carl Sagan’s widow Ann Druyan and atmospheric scientist Brian Toon.

Learn about the Future of Life award (details here) and how scientists came up with the nuclear winter hypothesis. How close to annihilation were we? Ann tells us about working with Carl Sagan on Cosmos and his research on this world and others. Find out how Carl Sagan’s research on the climate of Venus inspired work on the runaway greenhouse effect in our own atmosphere. Are scientists always supposed to be dispassionate?

What are the long-term consequences of nuclear war? How did they discover nuclear winter? Find out about volcanic eruptions and how the asteroid that killed the dinosaurs helped spark the idea of a nuclear winter. What happened after the US dropped atomic bombs on Hiroshima and Nagasaki? We learn about what smoke does to the atmosphere and what a post-nuclear world would look like. Why haven’t we seen any other advanced civilizations in the universe? Where are they? We talk about the Drake Equation, the fate of the Earth, and the current state of weapons of mass destruction. How much food would be needed to save up to survive a nuclear winter? Is there anywhere that would be safe?

What was the public’s reaction to nuclear winter? How did it impact geopolitics? Discover how Carl Sagan publicized the hypothesis to US and Russian politicians. Has the global amount of nuclear weapons gone down? We discuss the role of science communication and the concerning instability in the world today. Finally, are we safe?

I don’t want to repeat myself here, so you can read my comments in my earlier post.

Given the continued nasty war between Ukraine and Russia, as well as the recent bombing of nuclear sites in Iran, this episode is still sadly relevant. The discussion about the Reagan administration trying to block scientific inquiry also seems all too familiar today as the Trump administration guts our science programs, including NASA.

I just hope we are in a better place three years from now, both domestically and overseas.

Space Stories: New Bacterial Species at NASA, Geologic Life on Venus, and Water Found in Distant Solar System

Posted on by onespaceman2000
Image (Credit): Venus captured by NASA’s Mariner 10 spacecraft. (NASA/JPL-Caltech)

Here are some recent space-related stories of interest.

—SciTechDaily: “NASA Just Found New Signs of Life Inside Venus – Geologic Life, That Is“

Vast, circular features on the surface of Venus may be signs that the planet is still geologically active. That’s according to new research based on data collected over 30 years ago by NASA’s Magellan spacecraft. Unlike Earth, where giant plates of crust shift and recycle through a process called plate tectonics, Venus doesn’t have these moving plates. But its surface is still being reshaped—likely by molten rock rising from deep within the planet.

—USAToday: “NASA ‘Cleanrooms’ Found Crawling with 26 New Bacterial Species“

 A new study reports 26 new bacterial species were found growing inside cleanrooms associated with NASA space missions. Specifically, scientists looked in the cleanrooms used to prepare the Phoenix Mars lander for its launch in August 2007. In the study, scientists analyzed microorganisms growing in the NASA cleanrooms and discovered many of the new species had genes that made them resilient to decontamination and radiation.

—NASA: “Another First: NASA Webb Identifies Frozen Water in Young Star System“

Is frozen water scattered in systems around other stars? Astronomers have long expected it is, partially based on previous detections of its gaseous form, water vapor, and its presence in our own solar system. Now there is definitive evidence: Researchers confirmed the presence of crystalline water ice in a dusty debris disk that orbits a Sun-like star 155 light-years away using detailed data known as spectra from NASA’s James Webb Space Telescope. (The term water ice specifies its makeup, since many other frozen molecules are also observed in space, such as carbon dioxide ice, or “dry ice.”)

NASA Advisory Groups Share Concerns About Budget Cuts

Posted on by onespaceman2000

NASA Watch published a letter from representatives of the agency’s advisory groups, including:

The letter highlights the importance of science initiatives at NASA at a time when drastic budget cuts are being considered, and quotes Carl Sagan:

Cutting off fundamental, curiosity-driven science is like eating the seed corn. We may have a little more to eat next winter but what will we plant so we and our children will have enough to get through the winters to come?

It’s a much needed yet bold approach at this time when the White House is eliminating all opposition to its wild cuts and erratic attack on diversity. The White House is actively shutting down advisory committees through the federal government, including NASA.

We can only hope the public listens to the wiser voices from these advisory committees. Someday all of this will need to be rebuilt, including our space program, but for now we need to save as much as we can from random cuts from parties that do not seem to understand the important role of science in our economy and our future.