Because I'm guessing that except for a couple of launch service providers, the industry has started Christmas break.
A Chinese-launched satellite came close to a collision with a SpaceX Starlink satellite
One of the nine payload satellites launched on December 9th from the Jiuquan Satellite Launch Center in the Gobi Desert came "too close for comfort" to the SpaceX Starlink satellite.
"As far as we know, no coordination or deconfliction with existing satellites operating in space was performed, resulting in a 200-meter close approach between one of the deployed satellites and STARLINK-6079 (56120) at 560 km altitude. Most of the risk of operating in space comes from the lack of coordination between satellite operators — this needs to change," Michael Nicolls, vice president of Starlink engineering at SpaceX, said via X on Friday evening (Dec. 12).
Another article on the same site (Space.com) states that SpaceX launched their 10,000th Starlink into orbit around the middle of October. I think with 28 or 29 satellites per launch I've watched them add at least a hundred more to that total. Space.com goes on to say:
In 2020, for example, fewer than 3,400 functional satellites were whizzing around our planet. Just five years later, that number has soared to about 13,000, and more spacecraft are going up all the time.
Pardon me for the grade school-level arithmetic to follow, but I find this hard to believe. If we had 3,400 satellites in 2020 and five years later we have 13,000, that's pretty close to 10,000 in five years, which is what the previous link said about the 10,000th Starlink being launched. Either that or both numbers are wrong because they imply that no other country, company, or any entity has launched anything.
Starlink satellites avoid potential collisions autonomously, maneuvering themselves away from conjunctions predicted by available tracking data. And this sort of evasive action is quite common: Starlink spacecraft performed about 145,000 avoidance maneuvers in the first six months of 2025, which works out to around four maneuvers per satellite per month.
Atoms from Earth's atmosphere identified on the moon
New research has concluded that atoms and molecules from Earth's atmosphere have been traveling across space to settle on the moon for billions of years, solving a puzzle that has existed since the Apollo program.
In samples of lunar regolith brought back from the moon by Apollo astronauts, scientists have found puzzling amounts of volatiles, which in this case are elements such as water, carbon dioxide, helium, argon and nitrogen that have low boiling or sublimation points. Some of these volatiles are brought to the moon from the sun via the solar wind, but the abundances of these volatiles, particularly nitrogen, cannot solely be explained by the solar wind.
The puzzle of how these components ended up on the moon is a bit involved, but in the big overview, it was originally thought some of the volatiles have come from Earth, as particles leaking out from our planet's upper atmosphere when they receive a nudge from energetic particles riding the solar wind. It was believed, though, this could only have happened in the early days of Earth's history, before our planet had a chance to develop a strong global magnetic field. It was thought a strong field would block particles from escaping. This was eventually run through computer simulations which showed a strong magnetic field didn't stop the particles leaving Earth.
There are interesting details in the source (first link) but a bit long to lift and reproduce here. If you're interested, RTWT.
How atoms and molecules from Earth's atmosphere, knocked into space by the solar wind, are transported to the moon along magnetic field lines. (Image credit: University of Rochester illustration/Shubhonkar Paramanick)
Final words to space.com.
This means that the lunar regolith could still hold a very long-term record of Earth's atmospheric history, which in turn could teach us about how Earth's climate, environment and even life has changed over billions of years. Furthermore, the insights gained don't have to be confined to our planet.
"Our study may also have broader implications for understanding early atmospheric escape on planets like Mars, which lacks a global magnetic field today but had one similar to Earth in the past, along with a likely thicker atmosphere," said Paramanick. "By examining planetary evolution alongside atmospheric escape across different epochs, we can gain insight into how these processes shape planetary habitability."
























