An Interesting Message for Europa

Posted on by onespaceman2000
Image (Credit): One side of the panel attached to the Europa Clipper showing “water” ” in 103 languages (explained below). (NASA/JPL-Caltech)

In past NASA missions to the outer planets of our solar system, we attached messages for any distant civilization that might be out there. Both the Pioneer and Voyager missions contained such messages.

So what about NASA’s Europa Clipper mission to Jupiter’s moon set to launch in October? It too will have some messages, but these appear to be for the inhabitants of the moon rather than some distant civilization.

A triangular 7″ x 11″ metal plate attached to the spacecraft destined for Europa will carry messages on both sides. The image above shows one of these sides containing features waveforms that are visual representations of the sound waves formed by the word “water” in 103 languages.

The other side of the plate (shown below) contains a variety of messages:

  • the Drake Equation, which estimate the possibility of finding advanced civilizations beyond Earth;
  • U.S. Poet Laureate Ada Limón’s handwritten “In Praise of Mystery: A Poem for Europa”;
  • a reference to the radio frequencies considered plausible for interstellar communication; and
  • a portrait Ron Greeley, whose early efforts laid the foundation for Europa Clipper.

The spacecraft will also carry a silicon microchip containing more than 2.6 million names that were submitted by the public as part of NASA’s “Message in a Bottle” campaign.

This is all interesting in itself, but not really a message to others. I expect it is not intended for anyone else but ourselves because the Europa Clipper is not expected to leave the solar system but instead crash into another of Jupiter’s moons – Ganymede.

Note: You may wonder about the message on the New Horizons spacecraft that is also travelling to the edges of our solar system. That message is somewhat controversial. I will let you read about that one in this Slate article, “Ashes and Small Change.”

Image (Credit): One side of the panel attached to the Europa Clipper showing a poem, portrait, and more (explained above). (NASA/JPL-Caltech)

Voyager I Not Communicating at the Moment

Posted on by onespaceman2000
Image (Credit): The Voyager spacecraft. (NASA)

NASA is experiencing communication issues with the distant Voyager 1 spacecraft. As a result, NASA reports that no science or engineering data is being sent back to Earth.

Voyager 1 is about 15 billion miles from Earth, so its binary code signals take about 22.5 hours to reach Earth.

The communication issue with the spacecraft is expected to be resolved in the next few weeks. Of course, Voyager dates back to 1977. At some point we will need to say goodbye to our friend, but no one is ready for that.

NASA’s Voyager FAQ page states:

Engineers expect each spacecraft to continue operating at least one science instrument until around 2025. Even if science data won’t likely be collected after 2025, engineering data could continue to be returned for several more years. The two Voyager spacecraft could remain in the range of the Deep Space Network through about 2036, depending on how much power the spacecraft still have to transmit a signal back to Earth.

It would be great to have another 13 years of discussions with humanity’s most distant probes.

Space Stories: Distant Spacecraft Updates, Lucy Gets Ready for a Flyby, and Lunar Near-Earth Asteroids

Posted on by onespaceman2000
Image (Credit): Voyager II spacecraft instruments. (NASA)

Here are some recent stories of interest.

—Space.com: “NASA’s interstellar Voyager Probes Get Software Updates Beamed from 12 Billion Miles Away“

About 46 years after NASA’s Voyager 1 and Voyager 2 launched on an epic journey to explore space, the probes’ antique hardware continues to receive tweaks from afar. One update, a software fix, ought to tend to the corrupted data that Voyager 1 began transmitting last year, and another set aims to prevent gunk from building up in both spacecraft’s thrusters. Together, these updates intend to keep the spacecraft in contact with Earth for as long as possible.

—NASA: “NASA’s Lucy Spacecraft Preparing for its First Asteroid Flyby“

NASA’s Lucy spacecraft is preparing for its first close-up look at an asteroid. On Nov. 1, it will fly by asteroid Dinkinesh and test its instruments in preparation for visits in the next decade to multiple Trojan asteroids that circle the Sun in the same orbit as Jupiter. Dinkinesh, less than half a mile, or 1 kilometer, wide, circles the Sun in the main belt of asteroids located between the orbits of Mars and Jupiter. Lucy has been visually tracking Dinkinesh since Sept. 3; it will be the first of 10 asteroids Lucy will visit on its 12-year voyage. To observe so many, Lucy will not stop or orbit the asteroids, instead it will collect data as it speeds past them in what is called a “flyby.”

—UC San Diego: “How Could a Piece of the Moon Become a Near-Earth Asteroid? Researchers Have an Answer“

A team of astronomers has found a new clue that a recently discovered near-Earth asteroid, Kamooalewa, might be a chunk of the moon. They hypothesized that the asteroid was ejected from the lunar surface during a meteorite strike–and they found that a rare pathway could have allowed Kamooalewa to get into orbit around the sun while remaining close to the orbits of the Earth and the Moon. The research team details their findings in the Oct. 23 issue of the journal Nature Communications Earth & Environment. Kamo`oalewa has been the object of several astronomy studies in recent years. As a result, a Chinese mission launching in 2025 is set to land on the asteroid and return samples to Earth.

Voyager 2 is Still Talking to Us

Posted on by onespaceman2000
Image (Credit): Artist’s rendering of Voyager 2. (NASA)

After two weeks with no word, Voyager 2 is back to communicating with us as it continues its journey beyond our solar system. The whole incident started when NASA sent a bad command, but all is well.

Voyager 2 first left Earth back in August 1977 and exited the solar system in December 2018. Like Voyager 1, which is also outside the solar system now, Voyager 2 had the initial task of studying the planets. Voyager 2 focused on Jupiter, Saturn, Uranus and Neptune. It has shown it was capable of much more as it dragged the human race to the bleeding edge of space.

You can read all about Voyager 2’s accomplishments at this NASA site, including:

  • Voyager 2 is the only spacecraft to study all four of the solar system’s giant planets at close range.
  • Voyager 2 discovered a 14th moon at Jupiter.
  • Voyager 2 was the first human-made object to fly past Uranus.
  • At Uranus, Voyager 2 discovered 10 new moons and two new rings.
  • Voyager 2 was the first human-made object to fly by Neptune.
  • At Neptune, Voyager 2 discovered five moons, four rings, and a “Great Dark Spot.”

An impressive list of accomplishments, and the spacecraft is still ticking as it goes into the great unknown.

We need to keep these achievements in mind as we battle over this year’s NASA budget. We also need to remember that there was supposed to be four Voyager-like spacecraft rather than two, but budget cuts nixed the second set. Meaning we can still get some great things done even if we don’t have the budget to fund every piece of a grand vision.

Movie: The Story of Carl Sagan

Posted on by onespaceman2000
Image (Credit): Dr. Carl Sagan. (NASA)

Have you heard about the upcoming movie about Carl Sagan called Voyagers? Andrew Garfield of Spiderman fame will be playing Dr. Sagan. Daisy Edgar-Jones will play the part of Ann Druyan. The new film will be one of many shown at this year’s Cannes Film Festival, starting next week.

Here is the basic outline of the film by The Hollywood Reporter:

The film is set in 1977 as NASA is preparing to launch humanity’s first interstellar probes, the Voyager 1 and Voyager 2 missions. A team, led by Sagan, sets out to create a message to accompany them: the Golden Record, a group of images and sounds meant to express the essence of humanity and act as a first-contact greeting for any galactic lifeforms the probes might reach. But what starts out as a race-against-the-clock mission becomes an epic, unexpected love story between Sagan and his collaborator Druyan.

I have seen Andrew Garfield in a number of films and TV shows, and he never disappoints. Seeing his take on Dr. Sagan’s story should be fascinating and fun.

With all the recent films and series on twisted business icons, I will be happy to take a break and watch a film that covers one of science’s great icons. Maybe it can encourage a new generation of scientists and supporters of science.