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LOW EARTH ORBIT: DEFINITION, THEORY AND FACTS - In very simple terms, low Earth orbit (LEO) is exactly what it sounds like: An orbit around the Earth with an altitude that lies towards the lower end of the range of possible orbits. This is around 1,200 miles (2,000 kilometers) or less. The majority of satellites are to be found in LEO, as is the International Space Station (ISS).
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SATELLITE NEWS

SATELLITE CONSTELLATIONS COULD HARM THE ENVIRONMENT, NEW WATCHDOG REPORT SAYS SATELLITE CONSTELLATIONS COULD HARM THE ENVIRONMENT, NEW WATCHDOG REPORT SAYS - Do people have a right to an unobstructed view of the heavens? For most of human history, such a question would have been considered nonsensical—but with the recent rise of satellite mega constellations, it’s now being asked again and again. Mega constellations are vast groups of spacecraft, num...   More
(Source: Scientific American - Nov 25)


THANKSGIVING SPACE FESTIVITIES COME FROM 'THE FUTURE,' ASTRONAUTS SAY THANKSGIVING SPACE FESTIVITIES COME FROM 'THE FUTURE,' ASTRONAUTS SAY - The NASA astronauts currently in space are living so far in the future that they celebrated U.S. Thanksgiving on Tuesday (Nov. 22), they joked in a video. Jokes aside, the space crew on the U.S. side of the International Space Station does plan to take some time on the holiday to watch some footb...   More
(Source: Space.com - Nov 25)


CREW GOES INTO THANKSGIVING WITH SPACEWALK AND DRAGON PREPS CREW GOES INTO THANKSGIVING WITH SPACEWALK AND DRAGON PREPS - Four Expedition 68 astronauts will relax on Thanksgiving day as three cosmonauts continue preparing for a spacewalk on Friday. The International Space Station residents are also expecting a space delivery this weekend bringing new roll-out solar arrays and science experiments. Three NASA astronau...   More
(Source: NASA - Nov 24)


CHINA TO USE SPACE STATION TO TEST SPACE-BASED SOLAR POWER CHINA TO USE SPACE STATION TO TEST SPACE-BASED SOLAR POWER - China intends to use its newly-completed Tiangong space station to test key technologies required for space-based polar power, according to a senior space official. Robotic arms already operating on the outside of Tiangong will be used to test on-orbit assembly of modules for a space-based solar ...   More
(Source: SpaceNews - Nov 24)


JPSS-2 HAS A NEW NAME: NOAA-21 JPSS-2 HAS A NEW NAME: NOAA-21 - NOAA’s JPSS-2 satellite successfully launched from Vandenberg Space Force Base on Nov. 10 at 1:49 a.m. PST. This week, it was officially renamed NOAA-21. The Joint Polar Satellite System (JPSS) series of satellites provides the latest advancement in observations gathered from a polar orbit. In ...   More
(Source: NOAA - Nov 23)


CHINA ROLLS OUT ROCKET TO LAUNCH NEW CREW TO NEWLY-COMPLETED SPACE STATION CHINA ROLLS OUT ROCKET TO LAUNCH NEW CREW TO NEWLY-COMPLETED SPACE STATION - China is gearing up to send a new crew up to the newly-completed space station.  A Long March 2F rocket tipped with the Shenzhou 15 crew spacecraft was rolled out to the pad at Jiuquan Satellite Launch Center in the Gobi Desert on Monday (Nov. 21), China's human spaceflight agency, CMSA, announc...   More
(Source: Space.com - Nov 23)


SPACEX SCRUBS RESUPPLY LAUNCH TO THE SPACE STATION SPACEX SCRUBS RESUPPLY LAUNCH TO THE SPACE STATION - SpaceX called off a launch attempt Tuesday due to bad weather at Kennedy Space Center, delaying until Saturday the start of a resupply mission to the International Space Station. The 26th SpaceX cargo mission to the space station, called CRS-26, will deliver about 7,700 pounds (3.5 metric tons) o...   More
(Source: SpaceFlight Now - Nov 23)


SPACEX LAUNCHES EUTELSAT 10B COMMUNICATIONS SATELLITE SPACEX LAUNCHES EUTELSAT 10B COMMUNICATIONS SATELLITE - SpaceX launched a communications satellite to space Tuesday (Nov. 22) to serve air and sea traffic. SpaceX used a Falcon 9 rocket to launch the Eutelsat 10B satellite on behalf of Eutelsat Tuesday (Nov. 22) at 9:57 p.m. EST (0257 on Nov. 23 GMT). The Falcon 9's upper stage deployed Eutelsat 10B a...   More
(Source: Space.com - Nov 23)


SPACEX DELAYS EUTELSAT-10B LAUNCH ON FINAL FLIGHT OF B1049 SPACEX DELAYS EUTELSAT-10B LAUNCH ON FINAL FLIGHT OF B1049 - SpaceX is set to launch the Eutelsat-10B communication satellite into a supersynchronous geostationary transfer orbit. A Falcon 9 Block 5 rocket carrying the satellite will lift off from Space Launch Complex 40 at the Cape Canaveral Space Force Station in Florida with liftoff now scheduled for Tuesd...   More
(Source: NASASpaceFlight.com - Nov 22)


THE FIRST SATELLITES LAUNCHED BY UGANDA AND ZIMBABWE AIM TO IMPROVE LIFE ON THE GROUND THE FIRST SATELLITES LAUNCHED BY UGANDA AND ZIMBABWE AIM TO IMPROVE LIFE ON THE GROUND - When Uganda's very first satellite was launched into space last week on Nov. 7, Bonny Omara, the lead engineer on the satellite development team, was filled with emotion. "I was watching it on TV, together with my Honourable Minister for Science, Technology and Innovation," he says. "It was reall...   More
(Source: NPR - Nov 21)


JAPAN AGREES TO SPACE STATION EXTENSION AND GATEWAY CONTRIBUTIONS JAPAN AGREES TO SPACE STATION EXTENSION AND GATEWAY CONTRIBUTIONS - The Japanese government has formally agreed to extend its participation on the International Space Station through 2030 and provide components for the lunar Gateway. In a virtual ceremony Nov. 17, NASA and Japanese government officials signed an agreement outlining the roles that Japan will provi...   More
(Source: SpaceNews - Nov 20)


SPACEX'S NEXT NASA CARGO LAUNCH TO SPACE STATION DELAYED TO NOV. 22 SPACEX'S NEXT NASA CARGO LAUNCH TO SPACE STATION DELAYED TO NOV. 22 - SpaceX's next cargo launch to the International Space Station (ISS) has been pushed back a day, to Tuesday (Nov. 22). The delay, which SpaceX announced on Friday (Nov. 18), was caused by a coolant leak in the company's Dragon cargo capsule. The leak has been fixed and Dragon is now set to lift of...   More
(Source: Space.com - Nov 20)


COSMONAUTS FINISH SPACEWALK FOR WORK ON SCIENCE MODULE COSMONAUTS FINISH SPACEWALK FOR WORK ON SCIENCE MODULE - Expedition 68 Commander Sergey Prokopyev and Flight Engineer Dmitri Petelin, both of Roscosmos, concluded their spacewalk at 4:07 p.m. EST after 6 hours and 25 minutes. Prokopyev and Petelin completed their major objective, preparing a radiator on the Rassvet module for installation on the Nauk...   More
(Source: NASA - Nov 18)


‘PUTIN NEEDS THE ISS’: US ASTRONAUT SCOTT KELLY ON FUTURE OF SPACE COOPERATION - AND CHASING UFOS ‘PUTIN NEEDS THE ISS’: US ASTRONAUT SCOTT KELLY ON FUTURE OF SPACE COOPERATION - AND CHASING UFOS - Scott Kelly, a former commander of the International Space Station (ISS), says he doesn’t see any potential for space cooperation between the United States and Russia in the near future, aside from “practical” considerations to keep the ISS in orbit. The retired NASA astronaut, who famously...   More
(Source: Euronews - Nov 18)


A SATELLITE THAT LAUNCHED ABOARD SLS IS ALREADY IN TROUBLE A SATELLITE THAT LAUNCHED ABOARD SLS IS ALREADY IN TROUBLE - The Artemis 1 mission taking off from the Kennedy Space Center early Wednesday morning. The launch of NASA’s Artemis 1 mission sent the Orion capsule on a journey to the Moon, in addition to 10 cubesats included as secondary payloads. The Space Launch System’s upper stage successfully deploye...   More
(Source: Yahoo News - Nov 18)


SPACERYDE ANNOUNCES MULTIPLE LAUNCHES WITH ISILAUNCH SPACERYDE ANNOUNCES MULTIPLE LAUNCHES WITH ISILAUNCH - Canadian launch startup SpaceRyde revealed plans Nov. 15 to launch four private commercial flights for ISILaunch, a subsidiary of Innovative Solutions In Space B.V. of the Netherlands. Customers will pay $250,000 to launch 25-kilogram payloads on SpaceRyde’s Ryder rocket and Flying Spider ballo...   More
(Source: SpaceNews - Nov 17)


SLS LAUNCHES ARTEMIS 1 MISSION SLS LAUNCHES ARTEMIS 1 MISSION - After years of delays, NASA’s Space Launch System lifted off for the first time Nov. 16, sending an uncrewed Orion spacecraft on a shakedown cruise around the moon. The SLS lifted off from Launch Complex 39B here at 1:47 a.m. Eastern. The rocket’s upper stage, called the Interim Cryogenic Pro...   More
(Source: SpaceNews - Nov 16)


FIRST-TIME NASA SPACEWALKERS VENTURED OUTSIDE THE SPACE STATION TUESDAY FIRST-TIME NASA SPACEWALKERS VENTURED OUTSIDE THE SPACE STATION TUESDAY - The first in a series of end-of-the-year spacewalks kicked off Tuesday morning outside the International Space Station. First-time spacewalkers and NASA astronauts Josh Cassada and Frank Rubio began their excursion outside the space station at 9:14 a.m. ET and ended at 4:25 p.m. ET, lasting for 7...   More
(Source: CNN - Nov 16)


CHINA’S NEW SATELLITE-HUNTING RADAR AIMS TO BLIND US CHINA’S NEW SATELLITE-HUNTING RADAR AIMS TO BLIND US - China’s new electronically scanned array radar aims to blunt the military advantages long provided by satellite intelligence, raising proliferation concerns in Washington and other Western capitals. The 10-meter-tall SLC-1 radar unveiled at this year’s Zhuhai Airshow can detect and track low-...   More
(Source: Asia Times - Nov 15)


CHINESE ROCKET BODY BREAKS UP IN ORBIT AFTER SUCCESSFUL SATELLITE LAUNCH CHINESE ROCKET BODY BREAKS UP IN ORBIT AFTER SUCCESSFUL SATELLITE LAUNCH - China sent the Yunhai 3 environmental monitoring satellite into orbit on Friday (Nov. 11), on the second launch of the nation's new Long March 6A rocket. The Long March 6A lifted off from the hilly Taiyuan Satellite Launch Center in north China at 5:52 p.m. EST on Nov. 11 (2252 GMT; 6:52 a.m. Be...   More
(Source: Space.com - Nov 15)

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