This week’s image highlights NASA’s actions to launch the first phase of the Artemis Mission. The image shows the Space Launch System and Orion capsule moving towards launch pad 39B at the Kennedy Space Center. The launch of the six-week unmanned mission around the Moon is planned for August 29th. The full mission for this first phase, or Artemis I, is shown below.
Last week’s news that a young exoplanet has been spotted has generated quite a bit of interest. The discovery was reported in the journal The Astrophysical Journal Letters. Of course, if you read the abstract of the study itself, you may be confused with all the scientific jargon:
We report the discovery of a circumplanetary disk (CPD) candidate embedded in the circumstellar disk of the T Tauri star AS 209 at a radial distance of about 200 au (on-sky separation of 1.4 from the star at a position angle of 161°), isolated via 13CO J = 2−1 emission. This is the first instance of CPD detection via gaseous emission capable of tracing the overall CPD mass. The CPD is spatially unresolved with a 117 × 82 mas beam and manifests as a point source in 13CO, indicating that its diameter is ≲14 au…
We could not fund the space program if this is what we shared with taxpayers. Fortunately, the accompanying press release was better:
Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA)— in which the National Radio Astronomy Observatory (NRAO) is a partner— to study planet formation have made the first-ever detection of gas in a circumplanetary disk. What’s more, the detection also suggests the presence of a very young exoplanet. The results of the research are published in The Astrophysical Journal Letters…While studying AS 209— a young star located roughly 395 light-years from Earth in the constellation Ophiuchus— scientists observed a blob of emitted light in the middle of an otherwise empty gap in the gas surrounding the star. That led to the detection of the circumplanetary disk surrounding a potential Jupiter-mass planet. Scientists are watching the system closely, both because of the planet’s distance from its star and the star’s age. The exoplanet is located more than 200 astronomical units, or 18.59 billion miles, away from the host star, challenging currently accepted theories of planet formation. And if the host star’s estimated age of just 1.6 million years holds true, this exoplanet could be one of the youngest ever detected. Further study is needed, and scientists hope that upcoming observations with the James Webb Space Telescope will confirm the planet’s presence.
My first point is that communication matters, and we need both the scientists and the communicators if the public is to learn anything about what is being funded.
My second point relates to information found later in the press release about the new planet being 200 astronomical units from its sun. Pluto is only 39 astronomical units away from our Sun, so this is quite a difference. Which makes me wonder about our solar system and its various components. Even the hazy image above is more than we have of our own solar system as we guess about a ninth planet out there somewhere and hypothesize about the Oort Cloud. Should a civilization many light years away focus its best telescopes on our solar system , what could they tell us?
We seem to be explorers looking out over the sea at far-away islands not even understanding the components of the island we stand on. We certainly learn more every day as we pick and probe at the objects around us, yet it is clear that our knowledge of our own home has plenty of gaps. Maybe the solar system images from afar should be seen as weak reflections from our own solar system.
Given that the James Webb Space Telescope has yet to turn its attention to AS 209, we can expect even more surprises related to this distant solar system, and maybe our own.
You may have heard of the U.S. Air Force’s (USAF) X-37B unmanned mini-space shuttle that has been sent into orbit many times in the past. It performed secretive missions for the USAF, yet it now falls under the U.S. Space Force. The X-37B is currently orbiting the Earth and has been doing so since May 2020. While it has been said to carry various NASA experiments, this is probably cover for its other work (given that the International Space Station is more than able to carry out these experiments).
So while we are still trying to figure out the real mission of the X-37B, China is experimenting with its own secret space plane and saying even less. On August 4th, China launched its space plane aboard a Long March 2F rocket for a spin around the globe. This is part of continuing experimental flights.
And just in case you might think Russia is falling behind, it already has spacecraft in orbit that seem to be tracking some U.S. satellites.
What are these nations up to? The role of the U.S. Space Force relates to:
…organizing, training, and equipping Guardians to conduct global space operations that enhance the way our joint and coalition forces fight, while also offering decision makers military options to achieve national objectives.
That does not sound like a scientific mission, which is why the USAF and not NASA owned the spacecraft years back.
More likely than not, while these spacecraft will be able to repair and protect the parent nation’s satellites, they will also be able to block, disable, and destroy the satellites of other nations. Yes, this is the militarization of space and all that means in a time or war – potentially endless debris threatening the missions of the other satellites orbiting the planet.
Like it or not, the space race continues on in many forms.
Note: The U.S. Air Force still has a page on the X-37B that highlights its mission. The page states:
The X-37B Orbital Test Vehicle, or OTV, is an experimental test program to demonstrate technologies for a reliable, reusable, unmanned space test platform for the U.S. Air Force. The primary objectives of the X-37B are twofold; reusable spacecraft technologies for America’s future in space and operating experiments which can be returned to, and examined, on Earth.
Here are the specs for the X-37B:
Take a look at the image above. Can you determine where this image originated? Take a guess and then check your answer by going to the menu and selecting the “Where is this?” page.
Last week, South Korea launched a spacecraft towards the Moon via a SpaceX rocket. As with other nations and programs (the U.S., Russia, the European Space Agency, Japan, China, Luxembourg, Israel, and India), South Korea hopes to learn more about the Moon and share it with the scientific community. NASA also has a role in this latest mission, having added instruments to the spacecraft.
The Korea Pathfinder Lunar Orbiter, dubbed the Danuri, will be South Korea’s first foray towards the Moon. It will not reach the Moon until December, and then remain in orbit for about a year. In terms of the overall mission of the spacecraft, NASA noted:
…the objectives are to develop indigenous lunar exploration technologies, demonstrate a ‘space internet,’ and conduct scientific investigations of the lunar environment, topography, and resources, as well as identify potential landing sites for future missions.
In addition to other equipment, NASA added a high-sensitivity camera called ShadowCam, which will look for evidence of ice in the lunar craters.
South Korea is also part of the Artemis Accords, which the U.S. and other nations signed to establish a lunar presence to be followed by travel to Mars. At the time of the signing, South Korea’s Minister of Science and ICT stated:
For successful space exploration, it is critical to implement space development activities transparently and responsibly by collaborating with the international community…With the signing of the Artemis Accords, Korea would be able to strengthen cooperation with nations participating in the Accords in exploring the outer space.
It is encouraging to see more cooperation in the space realm, even if things are rocky with Russia, one the the bigger players to date.
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