Space Stories: Earth Gives Extra Juice, Starship’s First Orbit, Starliner Returns, and the Missing Moon

Posted on by onespaceman2000
Image (Credit): Artist’s rendering of the Juice spacecraft with Jupiter in the background. (ESA)

Here are some recent space-related stories of interest.

—European Space Agency: “Successful Earth Flyby Improves Juice’s Course to Jupiter”

The European Space Agency’s Jupiter Icy Moons Explorer (Juice) skimmed the very outer edge of Earth’s atmosphere on 28 September, using the gravity of our home planet to alter its route to Jupiter using very little fuel. The flyby deflected Juice by an angle of 20° compared to its pre-flyby path and increased its velocity by 3.5 km/s. In the four weeks before the flyby, spacecraft operators only had to give Juice one tiny nudge (out of six opportunities set aside) to put it on exactly the right approach trajectory to make the most of Earth’s gravity. They have been tracking the spacecraft extra carefully since 17 August, and will continue to do so until 10 October.

—Fox Business News: “SpaceX Launches Starship Into Orbit for First Time Ever But Cuts Mission Short“

SpaceX’s massive Starship rocket blasted off from Texas Monday morning on its most ambitious test flight yet, aiming for a roughly 10-hour mission that would have sent the spacecraft around Earth six times, though the company ultimately decided to end the flight earlier than planned…The launch marks Starship’s 14th test flight and its first attempt to reach orbit, a major step beyond previous suborbital missions that ended with splashdowns about an hour after liftoff.

—CBS News: “NASA Plans Unpiloted Starliner Test Flight After Astronauts Got Stuck at Space Station in 2024“

NASA is working with Boeing to launch an unpiloted Starliner capsule in the December-to-January time frame to test upgrades and improvements ordered in the wake of a 2024 mission that suffered multiple propulsion system failures, stranding two astronauts on the space station for more than nine months. If the unpiloted test flight goes well, NASA and Boeing hope to launch a piloted Starliner flight in the mid-2028 time frame, officials said Monday, incorporating redesigned propulsion system valves, more robust subsystems and other modifications expected to prevent the sort of failures that occurred in 2024. Veteran astronaut Warren “Woody” Hoburg will command the mission.

—Sky & Telescope: “Did Venus Swallow Its Moon?“

It’s a question that has perplexed planetary astronomers for decades: Why does Venus — so similar in size to Earth and not all that far from Earth’s orbit — have no moon, while our planet has such a relatively large one? Earth’s Moon likely formed after a massive collision early in solar system history. But according to calculations, Venus should have been even more likely than Earth to have experienced such a catastrophic crash during its formative years. Yet today it has no moon at all. Now, a series of simulations published in the September 20th Astrophysical Journal, have demonstrated that Venus might once have had a moon — but the planet’s relative proximity to the Sun and its massive atmosphere both created conditions under which no moon could have survived. If there ever was a moon, it would have disintegrated and fallen back to the surface long ago.

Note: Here is the podcast version of this post.

Space Quote: Better Late Than Never

Posted on by onespaceman2000
Image (Credit): Nancy Grace Roman with a scale model of the Hubble Space Telescope. (NASA)

“I just want to thank everybody, and congratulate you. Boy, it looked beautiful on television…Jared is doing a fantastic job, you are doing a fantastic job, and I’m supplying you all that money.”

–Statement by President Trump to NASA Administrator Jared Isaacman after the successful launch of the Nancy Grace Roman Space Telescope. Of course, this is the same president that submitted multiple budgets over the years that would have eliminated this same telescope as well as many other NASA programs. In fact, only the bipartisan efforts of Congress made the launch possible by “supplying…all that money.” Given the status of other White House efforts in Iran and elsewhere, it makes sense the president is looking for a win. Let’s hope NASA has plenty more wins coming up to keep the budget ax far away.

The Nancy Grace Roman Space Telescope Has Launched

Posted on by onespaceman2000
Image (Credit): NASA’s Nancy Grace Roman Telescope aboard a SpaceX rocket transiting the sun during launch from Launch Complex 39A at NASA’s Kennedy Space Center in Florida earlier today. (NASA/John Kraus)

Earlier today, NASA’s Nancy Grace Roman Space Telescope was successfully launched from Florida’ Kennedy Space Center. It is now on a journey toward the second Sun-Earth Lagrange point, or L2, about 1 million miles from Earth where it will start its mission.

The Roman Space Telescope will have a field of view at least 100 times larger than Hubble’s, which it can use to view billions of galaxies as well as answer questions about exoplanets, dark energy, dark matter, and more.

Nicky Fox, associate administrator for the Science Mission Directorate at NASA Headquarters in Washington, stated:

Roman will be a discovery machine that will bring us closer than ever before to answering humanity’s most profound questions about our cosmic history…With its large field of view and fast survey speeds, Roman will usher us into a new era of discovery and make the invisible visible, setting the foundation for humanity’s search for life beyond our solar system.

Not a bad mission for a repurposed spy satellite donated to NASA back in 2012. I wonder if the National Reconnaissance Office has any other old satellites or spacecraft lying around that it might want to put to use discovering more about the universe.

It’s a promising way to turn swords into plowshares.

A Day in Astronomy: India Lands a Spacecraft on the Moon

Posted on by onespaceman2000
Image (Credit): Artist’s rendering of the Chandrayaan-3 lander named Vickram and rover names Pragyan on the lunar surface. (NASA)

On this day in 2023, India became the fourth nation to land a spacecraft on the Moon (following the Soviet Union, the U.S., and China). India’s Chandrayaan-3 probe landed at the lunar South Pole, the first spacecraft to land in that region. Chandrayaan-2 had crashed on the Moon’s surface back in 2019, whereas Chandrayaan-1 was a lunar orbiter in 2008.

The mission objectives for the Chandrayaan-3 included:

  • Testing the elemental composition of lunar soil.
  • Measuring the near surface plasma density and how it changes over time.
  • Measuring the thermal properties of the lunar surface near polar regions.
  • Measuring the seismic activity around the landing site to deduce the internal structure of the lunar crust and mantle.

As with the US space program, the boost to Indian pride following this successful mission was immeasurable. As one proud Indian noted:

The success of Chandrayaan-3 reverberated through classrooms and homes across India, with countless young eyes glued to screens, witnessing a historic moment. The mission’s success, though grand, is symbolic of more profound implications. With a burgeoning youth population, India stands on the precipice of a new era of innovation. The world’s largest youth demographic resides here, and Chandrayaan-3 has offered them more than just a scientific marvel; it has provided them with a vision of what’s achievable.

Space Quote: LINK May Still Be in the Game

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Image (Credit): The LINK spacecraft with a deployed solar array in Earth orbit. (Katalyst Space)

“LINK originally was in a multi-axis spin rotating at about 9 degrees per second, which resulted in sporadic communications and impeded LINK’s progress toward Swift. Using a series of burns from one of LINK’s electric propulsion thrusters, the Katalyst team now has slowed that spin to about 1.47 degrees per second. Katalyst plans to keep LINK at that spin rate as it proceeds with next steps for the mission. This includes uploading a flight software update in the coming days with new attitude controllers designed to maintain LINK’s stability in its current configuration. These updates would allow LINK to begin maneuvering to align with Swift’s orbit.”

-Statement by NASA on August 6, 2026 regarding efforts to resolve issues with the LINK spacecraft sent to boost the Neil Gehrels Swift Observatory to a higher orbital altitude. Launched on July 3, the spacecraft began to spin in space around July 25, which led to a temporary loss of contact with the ground crew. If all goes well, LINK could reach the observatory before the end of August.