321 portugueses candidatam-se a astronautas da Agência Espacial EuropeiaInscreveram-se 260 homens, incluindo quatro com alguma deficiência física, e 61 mulheres
China’s Zhurong rover returns landing footage and sounds from Mars
A section of a panorama produced by Zhurong, released June 27, showing comms and solar arrays, roving tracks and the distant landing platform. Credit: CNSA/PEC
Remembering the crew of Soyuz 11, the only astronauts to die in spaceThe ill-fated replacement crew of Soyuz 11 spent three weeks performing experiments on the world's first space station. But their return trip ended in tragedy.
How do spaceX's Starlink satellites actually work?Take a closer look at Elon Musk’s orbiting constellation of satellites, which are built to deliver high-speed, low-latency internet across the globe.
https://astronomy.com/news/2021/06/how-do-starlink-satellites-actually-work?utm_source=asyfb&utm_medium=social&utm_campaign=asyfb&fbclid=IwAR3MRiWyUUH-OEygG-mI9lmJTInnMtUk5A6lrEfp9YWsax7OeMVKgRVcz4oCitarHow do spaceX's Starlink satellites actually work?Take a closer look at Elon Musk’s orbiting constellation of satellites, which are built to deliver high-speed, low-latency internet across the globe.Saudações
Fission surface power (FSP) can reliably provide us with the energy needed in all of these different contexts. A fission-powered reactor can provide 150 kilowatts of electrical power and support a small lunar base for at least 10 years. This would allow NASA astronauts to create oxygen from regolith, provide electricity for other life-support systems, and enable any number of scientific missions. That same system could be scaled up to produce megawatts of electrical power for a large base capable of producing propellant, providing for increasingly larger crews, and enabling ambitious technology demonstrations and groundbreaking science missions.
Artistic rendering of USNC’s Pylon fission surface power system, as integrated into a notional lander system. Credit: USNC-Tech
Sierra Space is among the companies that has expressed an interest in participating in NASA's Commercial LEO Destinations program to support development of commercial space stations. Credit: Sierra Space
WASHINGTON — NASA’s Hubble Space Telescope returned to science operations July 17 after a hiatus of more than a month as controllers successfully switched the orbiting observatory to a backup payload computer.NASA said the instruments of the 31-year-old telescope are now operational nearly five weeks after a payload computer, which commands those instruments, malfunctioned. Those instruments will resume normal science observations after completing calibrations.After weeks of investigation, engineers concluded that the most likely cause of the payload computer problem was a malfunction of a power control unit, which supplies voltage to the hardware in the computer. With no ability to reset the power control unit from the ground, engineers decided to switch to the backup Science Instrument Command and Data Handling hardware, which has its own power control unit.
NASA's Hubble Space Telescope, seen here after the final shuttle servicing mission in 2009, resumed normal operations July 17 after controllers switched to a backup computer. Credit: NASA
According to researchers, other life forms should be ‘out there’, located somewhere at unknown spots among different stars and galaxies. Some of these life forms should have reached similar and even higher level of evolution compared to us, humans. Should we try to contact them? Or should we remain silent?
After neglecting our sister planet for almost three decades, NASA is heading back to Venus — and in a big way.
Two new NASA missions will study the atmosphere and surface of Venus, seen here in a composite image from Magellan and Pioneer Venus Orbiter missions.
https://www.technology.org/2021/07/13/how-is-nasa-contacting-aliens/CitarAccording to researchers, other life forms should be ‘out there’, located somewhere at unknown spots among different stars and galaxies. Some of these life forms should have reached similar and even higher level of evolution compared to us, humans. Should we try to contact them? Or should we remain silent?Cumprimentos