Space Stories: The Fate of Juno, the End of a NASA Probe, and “Extragalactic Archeology”

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Image (Credit): Jupiter’s North Pole at minimum emission angle as captured by the Juno spacecraft. (NASA/JPL-Caltech/SwRI/MSSS/Thomas Thomopoulos)

Here are some recent space-related stories of interest.

—Ars Technica: “A Mission NASA Might Kill is Still Returning Fascinating Science from Jupiter“

Jupiter’s colossal storms generate lightning flashes at least 100 times more powerful than those on Earth, according to scientists analyzing data from NASA’s Juno spacecraft. The findings were published March 20 in the journal AGU Advances. Researchers used data recorded by Juno in 2021 and 2022, after NASA granted an extension to the spacecraft’s operations upon completing a five-year science campaign at Jupiter. Juno remains in good health, but NASA officials have not said if they will approve another extension for the mission. The issue is money.

—Astronomy.com: “NASA’s Van Allen Probe A Burns Up Over the Pacific after 14 Years in Space“

NASA’s Van Allen Probe A re-entered Earth’s atmosphere on Wednesday, March 11, at 6:37 a.m. EDT, marking the final chapter for a spacecraft that reshaped scientists’ understanding of the radiation environment around our planet. The U.S. Space Force confirmed the spacecraft came down over the eastern Pacific Ocean. NASA said most of the 1,300-pound (600 kilograms) probe burned up during reentry, though some pieces may have reached the surface. Its twin, Probe B, remains in orbit and is not expected to re-enter before 2030. The twin probes launched together on Aug. 30, 2012, on what was supposed to be a two-year mission. They operated for nearly seven years instead, circling Earth inside the Van Allen radiation belts — zones of high-energy charged particles held in place by the planet’s magnetic field. 

—Carnegie Science: ““Extragalactic Archeology” Reveals Nearby Galaxy’s Evolution“

A team of astronomers, including Carnegie Science’s Jeff Rich and other former Carnegie Observatories astronomers, have for the first time traced the history of a galaxy outside our own Milky way by studying chemical fingerprints in deep space, a new approach they are calling “extragalactic archeology.” Their findings are published in Nature Astronomy. “This is the first time that a chemical archaeology method has been used with such fine detail outside our own galaxy,” said lead author Lisa Kewley of the Center for Astrophysics | Harvard and Smithsonian.

Russia Resupplying the International Space Station

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Image (Credit): The Soyuz rocket carrying the Progress 94 mission just prior to launch. (Roscosmos)

The Russians successfully launched a cargo shipment of food, fuel, and supplies to the International Space Station (ISS) earlier today. The Roscosmos Progress 94 spacecraft left the Baikonur Cosmodrome in Kazakhstan aboard a Soyuz rocket.

Not everything was perfect, but there is no need to worry. An antenna issue may compromise the unmanned attaching to the ISS on Tuesday morning, but manual controls are available. The Russians are more than able to perform this tasks.

The Progress 94 spacecraft was originally slated for a December 2025 launch, but it had to be delayed due to earlier rocket damage at the Baikonur Cosmodrome. With repairs completed, things appear to be back to normal at the site.

You can watch the entire launch via the NASA site on YouTube.

Pic of the Week: Exposed Cranium Nebula

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Image (Credit): Side-by-side view of the Cranium nebula using two instruments on the JWST. You can see more stars and galaxies shining through with the NIRCam’s view, but you get a nice cosmic dust glows with the MIRI’s mid-infrared. (NASA, ESA, CSA, STScI; Image Processing: Joseph DePasquale (STScI))

This week’s images come from the James Webb Space Telescope (JWST). Each image shows a different view of the Cranium nebula depending on the JWST instrument being used. It is also called the “Exposed Cranium” Nebula because it looks like a brain in a see-through skull.

Here is a little more from NASA on what you are seeing above:

The nebula appears to have distinct regions that capture different phases of its evolution — an outer shell of gas that was blown off first and consists mostly of hydrogen, and an inner cloud with more structure that contains a mix of different gases. Both Webb’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument) show a distinctive dark lane running vertically through the middle of the nebula that defines its brain-like look of left and right hemispheres. Webb’s resolution shows that this lane could be related to an outburst or outflow from the central star, which typically occurs as twin jets burst out in opposite directions. Evidence for this is particularly notable at the top of the nebula in Webb’s MIRI image, where it looks like the inner gas is being ejected outward.

Space Stories: Meteor Shakes Ohio, Executive Order Could Impact Pluto, and Musk May Muck Up Space Again

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Image (Credit): Dwarf planet Pluto. (NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute)

Here are some recent space-related stories of interest.

—Fox 8 News: “NASA Confirms Boom was 17,000-pound Meteor“

A loud “boom” was reported across Northeast Ohio just before 9 a.m. on Tuesday. People around Northeast Ohio flooded the FOX 8 newsroom with reports of what heard like a “large explosion” lasting several seconds and causing homes and businesses to “shake.” NASA has confirmed a 6-foot, 17,000-pound meteor traveled 44,000 miles per hour over northeast Ohio. It was 50 miles above Lake Erie when the first flash was detected.

—USA Today: “NASA’s Isaacman Latest to Endorse Trump Reclassifying Pluto as a Planet“

President Donald Trump campaigned on “America first,” but some of his supporters and appointees apparently want Pluto to once again be … ninth. The ninth planet in our solar system, that is. Ever since Pluto was infamously stripped of its planetary status two decades ago, debate has raged for years over the distant icy world – half the size of the United States – and just what sort of cosmic body it should be classified as. Now, Jared Isaacman, NASA’s new chief, has appeared to signal his support for Trump to designate Pluto as a planet once again through executive order.

—Newsweek: “New 1M‑Satellite Plans Could ‘Permanently Scar’ Night Sky, Astronomers Warn“

The Royal Astronomical Society (RAS) has issued a stark warning over proposals by Elon Musk’s SpaceX and the California-based startup Reflect Orbital, saying the plans could cause lasting damage to ground‑based astronomy and dramatically alter the night sky for skywatchers. In comments submitted to U.S. regulators, the RAS said the scale and brightness of the proposed satellite constellations risk overwhelming astronomical observations from Earth. The society, alongside the European Southern Observatory (ESO), has formally opposed both projects in filings to the Federal Communications Commission (FCC), where the companies have sought approval.

Artemis II Reset for April 1 Launch

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Credit: NASA

It’s a “go,” for now at least, per NASA’s Artemis II Flight Readiness Review.

NASA has a small window in April to launch the Artemis II mission (see above), so the plan is for a launch on April 1.

The next step is to get the Space Launch System and Orion capsule back onto the launch pad, which is planned for March 19.

If you are so interested, you can watch yesterday’s press conference regarding the Artemis II Flight Readiness Review. The participants included:

  • Lori Glaze, acting associate administrator, Exploration Systems Development Mission Directorate
  • John Honeycutt, chair, Artemis II Mission Management Team
  • Shawn Quinn, manager, Exploration Ground Systems Program
  • Norm Knight, director, Flight Operations Directorate