“You’re doing this cool thing…You’re also going to be like really worked to death.”
-Comment by Griffin Rahn, who is earning his aerospace master’s degree at Georgia Tech, in a Fortune article titled “NASA is Struggling to Compete with Bezos, Musk and Their 6-figure Salaries for Starting Aerospace Engineers at Blue Origin and SpaceX.” The title of the article is self-explanatory. See any earlier posting for more on NASA’s troubles maintaining a work-life balance.
This week’s image, released last year, is from the James Webb Space Telescope (JWST). It shows two forming stars in what is called Herbig-Haro 46/47.
Here is a full explanation of what you are seeing from NASA:
NASA’s James Webb Space Telescope has captured a tightly bound pair of actively forming stars, known as Herbig-Haro 46/47, in high-resolution near-infrared light. Look for them at the center of the red diffraction spikes. The stars are buried deeply, appearing as an orange-white splotch. They are surrounded by a disk of gas and dust that continues to add to their mass.
Herbig-Haro 46/47 is an important object to study because it is relatively young – only a few thousand years old. Stars take millions of years to fully form. Targets like this also give researchers insight into how stars gather mass over time, potentially allowing them to model how our own Sun, a low-mass star, formed.
The two-sided orange lobes were created by earlier ejections from these stars. The stars’ more recent ejections appear in a thread-like blue, running along the angled diffraction spike that covers the orange lobes.
Actively forming stars ingest the gas and dust that immediately surrounds them in a disk (imagine an edge-on circle encasing them). When the stars “eat” too much material in too short a time, they respond by sending out two-sided jets along the opposite axis, settling down the star’s spin, and removing mass from the area. Over millennia, these ejections regulate how much mass the stars retain.
Don’t miss the delicate, semi-transparent blue cloud. This is a region of dense dust and gas, known as a nebula. Webb’s crisp near-infrared image lets us see through its gauzy layers, showing off a lot more of Herbig-Haro 46/47, while also revealing a deep range of stars and galaxies that lie far beyond it. The nebula’s edges transform into a soft orange outline, like a backward L along the right and bottom.
The blue nebula influences the shapes of the orange jets shot out by the central stars. As ejected material rams into the nebula on the lower left, it takes on wider shapes, because there is more opportunity for the jets to interact with molecules within the nebula. Its material also causes the stars’ ejections to light up.
Over millions of years, the stars in Herbig-Haro 46/47 will fully form – clearing the scene.
We live in a time where we have plenty of science fiction options on television and at the theaters. Be it the Apple TV+ remake of Issac Asimov’s Foundation, the current showing of Frank Herbert’s Dune: Part Two at theaters, or the ongoing television series spinning more Star Wars and Star Trek tales.
And now, starting tomorrow, we will be treated to a Netflix series on the 3 Body Problem, one of the more recent science fiction series from the mind of Chinese writer Liu Cixin. The new series based on the Hugo-awarding winning book was created by Game of Thrones showrunners David Benioff and DB Weiss, as well as Alexander Woo from HBO drama series True Blood.
So what is it about? Netflix has a paltry summary, so let’s go to the book summary itself (and the trailer):
Set against the backdrop of China’s Cultural Revolution, a secret military project sends signals into space to establish contact with aliens. An alien civilization on the brink of destruction captures the signal and plans to invade Earth. Meanwhile, on Earth, different camps start forming, planning to either welcome the superior beings and help them take over a world seen as corrupt, or to fight against the invasion. The result is a science fiction masterpiece of enormous scope and vision.
The reviews are mixed, though I am sure you will want to judge for yourself. But just in case you want some insights from others, check out these reviews:
Should you want to see the Chinese television series, you can find it here on Youtube. Or you may want to circle back to this version if you don’t care for the Netflix production.
Note: You can also find the Chinese version of the series on Amazon Prime. Rather than 8 episodes, you will find the Chinese version called Three Body has 30 episodes. I am working my way through the Amazon Prime series and so far prefer the slower-paced Chinese original. Netflix seems to rush through the ideas, whereas they are better developed in the longer series.
Here are some recent stories of interest.
—Space.com: “New NASA Astronauts ‘Thrilled’ to See 1st Boeing Starliner Crew Launch in May“
A new spacecraft will at last launch its first crew in May, and a fresh group of NASA astronauts say they’re excited to support it. NASA’s newest astronaut group graduated from basic training on March 5, just in time for the first Boeing Starliner test launch with astronauts, which is now expected in May…When it’s up and running, Starliner will regularly carry astronauts to and from the ISS alongside SpaceX’s Crew Dragon vehicle, which began its own astronaut flights in 2020. The newest astronaut cohort can’t wait to climb on board the Boeing craft.
—Sky & Telescope: “Giant Ancient Volcano Discovered on Mars“
It’s not every day that a giant volcano is discovered hiding in plain sight. By reviewing satellite imagery from many missions, scientists have spotted the remains of a colossal volcano on Mars. The volcano, provisionally named “Noctis Mons,” had been imaged repeatedly since the early 1970s, but extensive erosion had concealed it from view. Researchers have also spotted hints at an adjacent glacier buried underneath the volcanic slopes. Noctis Mons is located near the Martian equator, in the eastern part of the Tharsis volcanic province, sandwiched between the vast canyons of Valles Marineris and the fractured maze-like terrain of Noctis Labyrinthus.
—University of Ottawa: “New Research Suggests that Our Universe has No Dark Matter“
The current theoretical model for the composition of the universe is that it’s made of ‘normal matter,’ ‘dark energy’ and ‘dark matter.’…A University of Ottawa study published today challenges the current model of the universe by showing that, in fact, it has no room for dark matter...This discovery challenges the prevailing understanding of the universe, which suggests that roughly 27% of it is composed of dark matter and less than 5% of ordinary matter, remaining being the dark energy.
As we plan our return to the Moon, we cannot forget the Apollo astronauts who showed us the way last century. One of those astronauts, Thomas Stafford, died today at the age of 93.
Among his many achievements, including his Apollo 10 mission that prepared the way for the first Moon landing by Apollo 11, he may be most remembered for his 1975 space encounter with the U.S.S.R. cosmonauts.
The Apollo-Soyuz Test Project was the first international mission in space. It involved an Apollo spacecraft (crew of three) connecting with a Soyuz spacecraft (crew of two) in Earth orbit. The two days of joint activities created a precedent that was later followed by the International Space Station (ISS).
We were in the middle of the Cold War in 1975, so any cooperation with the U.S.S.R. was pretty amazing. It is just as surprising to witness SpaceX bringing cosmonauts to the ISS while the U.S. maintains severe sanctions on Russia.
Thomas Stafford died knowing that his early efforts to blaze a path to the Moon and cooperate with the Russians were still going strong today. That must have provided him with a little bit of peace in his final days.
You can watch a NASA video on Mr. Stafford’s accomplishments here.
You can also read more on Mr. Stafford’s life and career at these sites:
Rest in peace.
Our Awesome Universe 