The Chinese Elon Musk?

Posted on by onespaceman2000
Credit: Geely Auto

Have you read about the Chinese car company with space ambitions? In a June 2 press release, we learn that a unit of the Chinese automaker Geely (owner of Volvo, Polestar, and Group Lotus) already sent 9 communications satellites into orbit this year, with plans for a total of 240 such satellites in a constellation that will assist car drivers with autonomous driving.

Of course, automaker Elon Musk is also launching satellites into space as part of the Starlink program, but that is about the end of the similarities for now. In addition to planning to launch fewer satellites with a more restricted mission, Geely will depend upon Chinese government rockets to launch these satellites. Mr. Musk has his own SpaceX rockets to assist Starlink.

That does not mean Geely lacks in ambition elsewhere. In the same press release, Geely stated:

With the successful launch and operation of Geespace’s first satellites, the company will become one of the world’s first providers of combined commercial Precise Point Positioning and Real-Time Kinematic services (PPP-RTK)…

Tony Wang, CEO and Chief Scientist of Geespace said: “Many favourable factors such as policy support and market demand is accelerating the growth of the commercial aerospace sector...new opportunities to develop have been opened in various sectors including smart mobility, consumer electronics, unmanned systems, smart cities, and environmental protection.”

And while Geely is not building rockets at this time, it is building satellites:

Early in September 2021, Geely’s Intelligent Satellite Production and Testing Centre began mass production of commercial satellites with an annual production capacity of 500 units. Through intelligent modular manufacturing, Geespace is able to produce high-quality, easily customizable satellites to meet the growing global demand for commercial satellites. The GeeSAT-1 is only the first of many new satellite models from Geespace and its successful launch into orbit is just the first of many to come.

Watch out, Elon!

Space Quote: The Search for UAPs

Posted on by onespaceman2000
Image (Credit): Artist’s impression of UFOs. (iStock)

“NASA believes that the tools of scientific discovery are powerful and apply here also…We have access to a broad range of observations of Earth from space – and that is the lifeblood of scientific inquiry. We have the tools and team who can help us improve our understanding of the unknown. That’s the very definition of what science is. That’s what we do.

– Statement by Thomas Zurbuchen, associate administrator for science at NASA Headquarters in Washington, DC. This was part of NASA’s statement committing to a 9-month study of Unidentified Aerial Phenomena, also known as UFOs. You can read the full press release from NASA here.

Pic of the Week: Dazzling Star Cluster

Posted on by onespaceman2000
Image (Credit): Globular cluster Liller 1 (ESA/Hubble & NASA, F. Ferraro)

The image this week is from the NASA/ESA Hubble Space Telescope. It shows a cluster of old and young stars in the globular cluster Liller 1 located within the bulge of the Milky Way Galaxy. Here is a full explanation from NASA:

The muted red tones of the globular cluster Liller 1 are partially obscured in this image by a dense scattering of piercingly blue stars. In fact, it is thanks to Hubble’s Wide Field Camera 3 (WFC3) that we are able to see Liller 1 so clearly in this image, because the WFC3 is sensitive to wavelengths of light that the human eye cannot detect. Liller 1 is only 30 000 light-years from Earth — relatively neighbourly in astronomical terms — but it lies within the Milky Way’s ‘bulge’, the dense and dusty region at our galaxy’s centre. Because of that, Liller 1 is heavily obscured from view by interstellar dust, which scatters visible light (particularly blue light) very effectively. Fortunately, some infrared and red visible light are able to pass through these dusty regions. WFC3 is sensitive to both visible and near-infrared (infrared that is close to the visible) wavelengths, allowing us to see through the obscuring clouds of dust, and providing this spectacular view of Liller 1. 

Liller 1 is a particularly interesting globular cluster, because unlike most of its kind, it contains a mix of very young and very old stars. Globular clusters typically house only old stars, some nearly as old as the Universe itself. Liller1 instead contains at least two distinct stellar populations with remarkably different ages: the oldest one is 12 billion years old and the youngest component is just 1-2 billion years old. This led astronomers to conclude that this stellar system was able to form stars over an extraordinary long period of time. 

JWST: It Can Be Dangerous in Space

Posted on by onespaceman2000
Image (Credit): Artist’s image of the James Webb Space Telescope. (NASA)

NASA reports that the James Webb Space Telescope (JWST) was hit by a micrometeroid last month. The tweet from NASAWebb stated:

In late May, Webb sustained a dust-sized micrometeroid impact to a primary mirror segment. Not to worry: Webb is still performing at a level that exceeds all mission requirements.

A second story explained how NASA tested the JWST for just such instances, though the final sentence was a little more worrisome:

Webb’s mirror was engineered to withstand bombardment from the micrometeoroid environment at its orbit around Sun-Earth L2 of dust-sized particles flying at extreme velocities. While the telescope was being built, engineers used a mixture of simulations and actual test impacts on mirror samples to get a clearer idea of how to fortify the observatory for operation in orbit. This most recent impact was larger than was modeled, and beyond what the team could have tested on the ground.

And this sentence is also worrisome:

Since launch, we have had four smaller measurable micrometeoroid strikes that were consistent with expectations and this one more recently that is larger than our degradation predictions assumed. 

The $10 billion space telescope, which is still working to become operational, is not expected to share images until mid-July. Unlike the Hubble Space Telescope, NASA cannot send astronauts out to the JWST to make periodic repairs. The JWST currently sits in the L2 Lagrange point about 1 million miles away. All NASA can do now is try to compensate for the damage as best it can.