Post has attachment
Public
On its maiden flight, India's #SSLV will carry two #defence #satellites #ISRO #LocalTimes
Chennai: The Indian space agency will fly two small defence satellites in July/August on its new rocket –now known as Small Satellite Launch Vehicle (SSLV) – said a top official of Indian Space Research Organisation (ISRO). “We are planning to fly two…
Chennai: The Indian space agency will fly two small defence satellites in July/August on its new rocket –now known as Small Satellite Launch Vehicle (SSLV) – said a top official of Indian Space Research Organisation (ISRO). “We are planning to fly two…
Add a comment...
Post has attachment
পাকিস্তানের ভূ-খণ্ডে নজরদারি ভারত অদৃশ্য ১০ চোখের
#Isro #Satellites #Surveillance #Pakistan #LatestBengaliNews #OnlineBengaliNews #BengaliNews
#Isro #Satellites #Surveillance #Pakistan #LatestBengaliNews #OnlineBengaliNews #BengaliNews
Add a comment...
Post has attachment
Public
Northrop Spacecraft Leaves Space Station for CubeSat Deployment Mission
blog.executivebiz.com
Add a comment...
Post has shared content
Public
Ubiquitilink may allow regular phones to receive two-way signals from satellites
Technically possible and many mobile phones are hardware capable. It means that it may be possible in future to be able to connect anywhere on Earth with just a plain mobile phone (and a few additional satellites of course).
The company says that most phones made in the past decade have the hardware required to connect to these satellites, but software modifications are required. This is because most phones are built around the assumption that cell towers cannot be more than 30 km (18 miles) away, since the curvature of the Earth generally prevents signals from transmitting farther than that. Once Ubiquitilink modified a phone's wireless stacks to account for the longer distance, it successfully connected to a 2G satellite in orbit.
Charles Miller, founder of Ubiquitilink, plans for the company to become a worldwide roaming operator that mobile networks will pay to access. That's a long way off, though — at least a thousand satellites are reportedly required, but the service would work with fewer in limited passes. For example, customers might not have a signal for 55 minutes, then receive service for five minutes (when the satellites pass over your location). That's certainly better than no service at all.
See https://www.androidpolice.com/2019/02/28/ubiquitilink-may-allow-regular-phones-to-receive-signals-from-satellites/
#satellites #mobilephone #Ubiquitilink
Technically possible and many mobile phones are hardware capable. It means that it may be possible in future to be able to connect anywhere on Earth with just a plain mobile phone (and a few additional satellites of course).
The company says that most phones made in the past decade have the hardware required to connect to these satellites, but software modifications are required. This is because most phones are built around the assumption that cell towers cannot be more than 30 km (18 miles) away, since the curvature of the Earth generally prevents signals from transmitting farther than that. Once Ubiquitilink modified a phone's wireless stacks to account for the longer distance, it successfully connected to a 2G satellite in orbit.
Charles Miller, founder of Ubiquitilink, plans for the company to become a worldwide roaming operator that mobile networks will pay to access. That's a long way off, though — at least a thousand satellites are reportedly required, but the service would work with fewer in limited passes. For example, customers might not have a signal for 55 minutes, then receive service for five minutes (when the satellites pass over your location). That's certainly better than no service at all.
See https://www.androidpolice.com/2019/02/28/ubiquitilink-may-allow-regular-phones-to-receive-signals-from-satellites/
#satellites #mobilephone #Ubiquitilink
Add a comment...
Post has attachment
Public
#On its maiden flight, India's #SSLV will carry two defence #satellites
http://ow.ly/XCcW30nLsVI #Technology #ISRO #Science
http://ow.ly/XCcW30nLsVI #Technology #ISRO #Science
Add a comment...
Post has attachment
La station ISS a rendez vous le mardi 5 mars à 9h50 UTC avec Ceip Nuestra Senora Del Carmen, Torre De La Reina, en Espagne.
La conversation se fera en anglais entre David St-Jacques KG5FYI et avec EG7NSC.
Le signal sera donc audible en Europe sur 145.800 MHz en FM
Un streaming vidéo est prévu : https://www.youtube.com/watch?v=G1fWg9eb3XA
Liste des questions :
1. Celia: What did you think when you saw Earth from space?
2.
#emission #ISS #radioamateurs #radioclubs #réception #satellites
https://www.news.urc.asso.fr/2019/03/04/contact-ariss-le-05-03-19-a-10h50/
La conversation se fera en anglais entre David St-Jacques KG5FYI et avec EG7NSC.
Le signal sera donc audible en Europe sur 145.800 MHz en FM
Un streaming vidéo est prévu : https://www.youtube.com/watch?v=G1fWg9eb3XA
Liste des questions :
1. Celia: What did you think when you saw Earth from space?
2.
#emission #ISS #radioamateurs #radioclubs #réception #satellites
https://www.news.urc.asso.fr/2019/03/04/contact-ariss-le-05-03-19-a-10h50/
Add a comment...
Post has shared content
Public
OneWeb launches mega-constellation pathfinder satellites
https://www.bbc.com/news/science-environment-47374246
#satellites #space #globalinternet #futuretrends #OneWeb #SpaceX #ElonMusk #futurology
https://www.bbc.com/news/science-environment-47374246
#satellites #space #globalinternet #futuretrends #OneWeb #SpaceX #ElonMusk #futurology
Add a comment...
Post has attachment
Public
British-U.S. Astronaut Piers Sellers Tribute | NASA
Image: Piers Sellers (1955-2016) during the third spacewalk of Space Shuttle Discovery Mission STS-121 at the International Space Station (July 2006)
Astronaut Piers Sellers passed away December 23, 2016, in Houston, Texas, United States of pancreatic cancer. For several years Dr. Sellers had served as acting director of the Earth Sciences Division at NASA's Goddard Space Flight Center in Greenbelt, Maryland. The following is a statement from Goddard Center Director Chris Scolese on Sellers' passing:
"Piers came to Goddard in 1982 from his native Britain and ultimately left a legacy that few can claim. His career path took him from scientist, to astronaut, and back to his roots as a leader in Goddard's Sciences and Exploration Directorate.
"After learning he had pancreatic cancer more than a year ago, Piers' optimistic take on life—well-known within the gates at Goddard—inspired people around the world. He spoke eloquently about his confidence in humanity's ability to confront the challenges of climate change, even as he faced his own terminal diagnosis.
"Piers' contributions to Earth science are beyond significant. His Simple Biosphere Model was the first to realistically simulate the interaction of global photosynthesis and Earth's climate. The focus of research throughout his career, his first-author papers on biosphere-climate interactions have been cited thousands of times. He led major field campaigns, FIFE and BOREAS, that combined ground, airborne, and satellite measurements at an unprecedented scale. He was the first project scientist of the Terra mission, which remains healthy in orbit today, 17 years after launch.
"When the opportunity arose, Piers made good on a childhood dream and was accepted to NASA's astronaut corps. On missions STS-112, 121, and 132, he helped complete construction of the International Space Station, and gained the perspective of seeing Earth from space that he would talk about for years to come.
"In 2011, we at Goddard were fortunate that Piers chose to return to help lead the Sciences and Exploration Directorate and Earth Sciences Division. With wit and humor, and yet a razor-sharp focus on the task at hand, Piers has helped energize Earth science at Goddard in recent years.
"We remember Piers as an exceptional scientist and leader, but most importantly as an inspiring human being. He could make you think anything was possible, was always up for the adventure, and would remind you along the way how lucky we are to do the work we do here at Goddard."
Astronaut Biography from Johnson Space Center:
https://www.jsc.nasa.gov/Bios/htmlbios/sellers.html
Credit: NASA/JSC/Goddard
Release Date: December 23, 2016
+NASA
+NASA Goddard
+NASA Johnson Space Center
+UK Space Agency
#NASA #Earth #Space #Satellites #ISS #Science #Earth #PiersSellers #Astronaut #Scientist #SpaceShuttle #STS121 #Discovery #Climate #CarbonCycle #Environment #ClimateChange #EarthObservation #Human
#Spaceflight #Spacecraft #Photography #UK #England #UnitedStates #OrbitalPerspective #OverviewEffect #STEM #Education
Image: Piers Sellers (1955-2016) during the third spacewalk of Space Shuttle Discovery Mission STS-121 at the International Space Station (July 2006)
Astronaut Piers Sellers passed away December 23, 2016, in Houston, Texas, United States of pancreatic cancer. For several years Dr. Sellers had served as acting director of the Earth Sciences Division at NASA's Goddard Space Flight Center in Greenbelt, Maryland. The following is a statement from Goddard Center Director Chris Scolese on Sellers' passing:
"Piers came to Goddard in 1982 from his native Britain and ultimately left a legacy that few can claim. His career path took him from scientist, to astronaut, and back to his roots as a leader in Goddard's Sciences and Exploration Directorate.
"After learning he had pancreatic cancer more than a year ago, Piers' optimistic take on life—well-known within the gates at Goddard—inspired people around the world. He spoke eloquently about his confidence in humanity's ability to confront the challenges of climate change, even as he faced his own terminal diagnosis.
"Piers' contributions to Earth science are beyond significant. His Simple Biosphere Model was the first to realistically simulate the interaction of global photosynthesis and Earth's climate. The focus of research throughout his career, his first-author papers on biosphere-climate interactions have been cited thousands of times. He led major field campaigns, FIFE and BOREAS, that combined ground, airborne, and satellite measurements at an unprecedented scale. He was the first project scientist of the Terra mission, which remains healthy in orbit today, 17 years after launch.
"When the opportunity arose, Piers made good on a childhood dream and was accepted to NASA's astronaut corps. On missions STS-112, 121, and 132, he helped complete construction of the International Space Station, and gained the perspective of seeing Earth from space that he would talk about for years to come.
"In 2011, we at Goddard were fortunate that Piers chose to return to help lead the Sciences and Exploration Directorate and Earth Sciences Division. With wit and humor, and yet a razor-sharp focus on the task at hand, Piers has helped energize Earth science at Goddard in recent years.
"We remember Piers as an exceptional scientist and leader, but most importantly as an inspiring human being. He could make you think anything was possible, was always up for the adventure, and would remind you along the way how lucky we are to do the work we do here at Goddard."
Astronaut Biography from Johnson Space Center:
https://www.jsc.nasa.gov/Bios/htmlbios/sellers.html
Credit: NASA/JSC/Goddard
Release Date: December 23, 2016
+NASA
+NASA Goddard
+NASA Johnson Space Center
+UK Space Agency
#NASA #Earth #Space #Satellites #ISS #Science #Earth #PiersSellers #Astronaut #Scientist #SpaceShuttle #STS121 #Discovery #Climate #CarbonCycle #Environment #ClimateChange #EarthObservation #Human
#Spaceflight #Spacecraft #Photography #UK #England #UnitedStates #OrbitalPerspective #OverviewEffect #STEM #Education
Add a comment...
Post has attachment
Public
How Do Space Probes Send Signals To Earth?
scienceabc.com
Add a comment...
Post has shared content
How Are Artificial #Satellites Repaired In #Space ? : http://sciabc.us/LDOq6 #science
How Are Artificial Satellites Repaired In Space?
scienceabc.com
Wait while more posts are being loaded