ISRO Develops Radar for Joint Earth Observation Satellite Mission with NASA
The Indian Space Research Organisation (ISRO) has completed the development of a radar for the joint earth observation satellite mission with the US space agency National Aeronautics and Space Administration (NASA). ISRO has developed a Synthetic Aperture Radar (SAR), capable of producing extremely high-resolution images for the mission.
Nasa-ISRO SAR (NISAR) is a joint collaboration for a dual-frequency L and S-band SAR for earth observation. NISAR will be the first satellite mission to use two different radar frequencies (L-band and S-band) to measure changes in our planet's surface less than a centimeter across.
NASA is providing the mission's L-band SAR, a high-rate communication subsystem for science data, GPS receivers, a solid-state recorder and payload data subsystem.
ISRO is providing the spacecraft bus, the S-band radar, the launch vehicle and associated launch services for the mission, whose goal is to make global measurements of the causes and consequences of land surface changes using advanced radar imaging.
NASA and ISRO had signed a partnership on September 30, 2014, to collaborate on and launch NISAR which is targeted to launch in early 2022 from Sriharikota spaceport in Andhra Pradesh.
Mar 09, 2021
Astronomers Discover Most Distant Known Cosmic Jet
Astronomers using several ground-based telescopes have spotted the most distant cosmic jet discovered so far.
Its source is PSO J172.3556+18.7734, a radio-loud quasar located some 13 billion light-years from Earth and seen as it was when the Universe was only 780 million years old.
While more distant quasars have been discovered, this is the first time astronomers have been able to identify the telltale signatures of radio jets in a quasar this early on in the history of the Universe.
Astronomers think that there's a link between the rapid growth of supermassive black holes and the powerful radio jets spotted in quasars.
The jets are thought to be capable of disturbing the gas around the black hole, increasing the rate at which gas falls in.
Microsoft Starts Testing Chromium-powered Edge Browser
Microsoft has started testing its Chromium-powered Edge browser on the newly-launched Xbox One and Xbox Series X/S consoles.
Xbox testers in the Alpha Skip-Ahead group can now access the new Microsoft Edge on Xbox One or Xbox Series S / X consoles.
However, full mouse and keyboard support is still missing.
The new browser on Xbox will give users access to websites they want to surf on the controller.
The current test version also supports many of the same features from the desktop version of Edge that includes extensions and vertical tabs.
Mar 08, 2021
Nita Ambani Launches Social Media Platform Her Circle
Reliance Foundation chairperson Nita Mukesh Ambani launched a social media platform 'Her Circle' aimed at empowering women.
Her Circle is envisioned to be a one-stop destination to provide women-related content that is engaging and upliftment-oriented even as it connects women through a social platform.
With the Digital Revolution enabling round the clock global networking and collaboration, Her Circle welcomes ideas and initiatives of women from all cultures, communities and countries.
Her Circle subscribers will be able to watch videos, read articles with solution-oriented life strategies covering living, wellness, finance, work, personality development, community service, beauty, fashion, entertainment, creative self-expression and active participation in public life through women-led NGOs and other organisations.
Mar 07, 2021
Researchers Find Organic Matter and Water in Sample from Asteroid Itokawa
An international team of scientists has studied both the water and organic contents from a dust particle recovered from the surface of the near-Earth S-type asteroid 25143 Itokawa by JAXA's Hayabusa mission, which was the first mission that brought pristine asteroidal materials to Earth.
In 2010, the Hayabusa mission successfully recovered over thousands of regolith particles, with sizes ranging 10-200 μm, from the near-Earth asteroid Itokawa.
Itokawa is considered a rubble-pile asteroid that was re-accreted from materials of a formerly large, thermally metamorphosed, collisional-disrupted precursor planetesimal.
Mar 06, 2021
NASA's Perseverance Rover Drives on Mars for First Time
NASA's Mars 2020 Perseverance rover performed its first drive on Mars, covering 21.3 feet (6.5 meters) across the Martian landscape.
The drive served as a mobility test that marks just one of many milestones as team members check out and calibrate every system, subsystem, and instrument on Perseverance. Once the rover begins pursuing its science goals, regular commutes extending 656 feet (200 meters) or more are expected.
The drive, which lasted about 33 minutes, propelled the rover forward 13 feet (4 meters), where it then turned in place 150 degrees to the left and backed up 8 feet (2.5 meters) into its new temporary parking space.
To help better understand the dynamics of a retrorocket landing on the Red Planet, engineers used Perseverance's Navigation and Hazard Avoidance Cameras to image the spot where Perseverance touched down, dispersing Martian dust with plumes from its engines.
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