Space debris: A quantitative analysis of the in-orbit collision risk and its effects on the Earth
Space debris: A quantitative analysis of the in-orbit collision risk and its effects on the Earth
https://phys.org/news/2023-06-space-debris-quantitative-analysis-in-orbit.html
The amount of space debris has not stopped increasing since the first satellite was launched in 1957. The European Space Agency (ESA) estimates that there are more than 131,000,000 useless space waste objects, between 1 millimeter and 10 centimeters, currently orbiting around the Earth at an average speed of 36,000 kilometers per hour, which come from different sources such as last stages of rockets, satellites that are no longer operational, and even tools lost in space by astronauts.
Scientists find 'ghost particles' spewing from our Milky Way galaxy in landmark discovery (video)
Scientists find 'ghost particles' spewing from our Milky Way galaxy in landmark discovery (video)
https://www.space.com/high-energy-neutrinos-milky-way-galaxy-icecube
'This observation of high-energy neutrinos opens up an entirely new window to study the properties of our host galaxy.'
Virgin Galactic Flies Italians to Edge of Space for Its First Commercial Trip
https://www.universetoday.com/162205/virgin-galactic-flies-italians-to-edge-of-space-for-its-first-commercial-trip/
Virgin Galactic sent its first commercial customers to the edge of space aboard its VSS Unity rocket plane.
Do we have any other former SETI@home users here?
I'm still bummed that the project stopped and for that matter that nothing really came of their analyzation phase. Nothing seems to have happened since they moth balled it..
I wasn't the most active user by by far but I had tens of thousands of classic cpu hours and some millions od current score after close to 20 years of on and off participation.
Sure, there are other projects I could join but.. there was something magical about SETI to me.
For those who never heard of the project:
https://setiathome.berkeley.edu/
You could donate spare cpu cycles to help analyze data from the Arecibo radio telescope to look for signs of artificial signals. You had it running in the background and as a screensaver if you wanted to see what you were analyzing.
I'm sure most of you have heard of it or similar distributed computing projects. There are plenty to choose from using BOINC (that S@h used) over at https://boinc.berkeley.edu/
https://foldingathome.org/ is one if the most known similar ones.
I just wanted to vent a bit.
I'm still struck now and then by the fact that they stopped the project and I get bummed out..
The Cosmos Is Thrumming With Gravitational Waves, Astronomers Find
https://www.nytimes.com/2023/06/28/science/astronomy-gravitational-waves-nanograv.html
Radio telescopes around the world picked up a telltale hum reverberating across the cosmos, most likely from supermassive black holes merging in the early universe.
Virgin Galactic set to launch crucial 1st commercial SpaceShipTwo mission today
https://www.space.com/virgin-galactic-first-commercial-mission-importance
A smooth flight is key to the company's ambitious plans.
ULA shipping Vulcan upper stage back to factory for more work
https://arstechnica.com/space/2023/06/ula-shipping-vulcan-upper-stage-back-to-factory-for-more-work/
ULA's Vulcan rocket is likely at least a year away from becoming operational.