Latest news with #Earth-observing
News18
12 hours ago
- Science
- News18
NISAR Mission Launch : GSLV-F 16 Successfully Places Nisar Satellite In Orbit NASA ISRO
NASA and India's ISRO have launched a cutting-edge Earth-observing satellite called NISAR, equipped with the most advanced radar systems ever historic collaboration will scan nearly the entire planet every 12 days, providing critical insights into natural disasters, climate change, and ecosystem health. From tracking volcanic eruptions to detecting glacier shifts in Antarctica, NISAR's dual-band radar will deliver a torrent of high-resolution data that could transform how we monitor Earth's dynamic surface. Mobile App -
Economic Times
15 hours ago
- Science
- Economic Times
NISAR Satellite launched: NASA-ISRO $1.5 billion powerful Earth-monitoring satellite takes off from Sriharikota
Marking a major milestone in Indo-US space collaboration, the Indian Space Research Organisation (ISRO) and NASA on Wednesday launched their most advanced Earth observation radar satellite from Sriharikota. Equipped to detect even the slightest changes in the planet's land and ice surfaces, the satellite will play a crucial role in forecasting both natural disasters and human-induced first-ever hardware collaboration between NASA and ISRO on an Earth-observing mission, NISAR will carry the most advanced radar system ever launched as part of a NASA or ISRO mission. The satellite also is carrying a price tag of $1.5 billion, making it the most expensive Earth observation mission ever launched. Short for NASA-ISRO Synthetic Aperture Radar, NISAR will help scientists better understand processes involved in natural hazards and catastrophic events, such as earthquakes, volcanic eruptions, and landslides. In addition, it will support monitoring of infrastructure, such as dams, bridges, and roadways. What's more, the satellite's cloud-penetrating ability will help urgent-response communities during weather disasters such as hurricanes, storm surges, and floods. And NISAR will provide key global Earth observations, such as changes in ice sheets, glaciers, and sea ice, as well as improve understanding of how deforestation, permafrost loss, and fires affect the carbon cycle. What are key features of NISAR? About the length of a pickup truck, the satellite's main body contains engineering systems and a first-of-its-kind dual-radar payload — an L-band system with a 10-inch (25-centimeter) wavelength and an S-band system with a 4-inch (10-centimeter) wavelength. Each system's signal is sensitive to different sizes of features on Earth's surface, and each specializes in measuring different attributes, such as moisture content, surface roughness, and motion. These characteristics are important for studying a variety of natural surface conditions, such as the amount of soil moisture available for vegetation to thrive or if land has subsided over time. When operating together, the satellite's two radars will collect data synchronized in time and location, extending the sensitivity of the measurements to objects on the surface in a broad range of sizes. For example, S-band data will allow more accurate characterization of shorter plants, such as bushes and shrubs, while L-band data will sense taller vegetation, like trees. What will NISAR do? NASA describes NISAR as the most advanced radar system it has ever radar signals pass through clouds, they are ideal for continual monitoring of the in Earth's surface could provide early warning of impending natural disasters like volcanic eruptions and landslides. Measurements of ice sheets will reveal which areas are melting and which are growing through accumulated data could also reveal flooded areas that would otherwise be hidden by bad weather, providing help to rescue teams."NISAR is a model for the next generation of Earth-observation capabilities," Karen St. Germain, director of NASA's Earth science division, said Monday during a news conference. What happens after launch? NISAR will be lifted to orbit on an ISRO rocket known as a Geosynchronous Satellite Launch Vehicle. The orbit will pass close to the North and South Poles at about 464 miles above Earth's first 90 days will be devoted to deploying the spacecraft, including extending a 39-foot-wide gold-mesh antenna reflector, which looks a bit like a giant beach primary mission is scheduled to last three years. If the spacecraft is still operational at that point, it will be carrying enough propellant to continue for another couple of years. How does NISAR work? The main part of the spacecraft is 18 feet long and weighs more than 5,000 pounds. Two 18-foot-long solar arrays will generate satellite includes two radar systems. One, built by NASA, will transmit microwaves with a wavelength of 25 feet. The other, built by ISRO, transmits 10-foot-long microwaves. The two wavelengths will provide details at different size scales. For the study of vegetation, the shorter wavelengths will provide more detail about bushes and shrubs, while the longer wavelengths will provide a clearer picture of taller plants like on the spacecraft will generate microwave pulses that will bounce off the gold-mesh reflector and travel down to Earth, bounce off the surface and return to the radar signals along the orbit will be combined to simulate a larger reflector. Bouncing radar signals from multiple angles allows the creation of 3D views.
Time of India
15 hours ago
- Science
- Time of India
NISAR Satellite launched: NASA-ISRO $1.5 billion powerful Earth-monitoring satellite takes off from Sriharikota
Live Events (You can now subscribe to our (You can now subscribe to our Economic Times WhatsApp channel Marking a major milestone in Indo-US space collaboration, the Indian Space Research Organisation ( ISRO ) and NASA on Wednesday launched their most advanced Earth observation radar satellite from Sriharikota. Equipped to detect even the slightest changes in the planet's land and ice surfaces, the satellite will play a crucial role in forecasting both natural disasters and human-induced first-ever hardware collaboration between NASA and ISRO on an Earth-observing mission, NISAR will carry the most advanced radar system ever launched as part of a NASA or ISRO mission. The satellite also is carrying a price tag of $1.5 billion, making it the most expensive Earth observation mission ever for NASA-ISRO Synthetic Aperture Radar, NISAR will help scientists better understand processes involved in natural hazards and catastrophic events, such as earthquakes, volcanic eruptions, and landslides. In addition, it will support monitoring of infrastructure, such as dams, bridges, and roadways. What's more, the satellite's cloud-penetrating ability will help urgent-response communities during weather disasters such as hurricanes, storm surges, and floods. And NISAR will provide key global Earth observations, such as changes in ice sheets, glaciers, and sea ice, as well as improve understanding of how deforestation, permafrost loss, and fires affect the carbon the length of a pickup truck, the satellite's main body contains engineering systems and a first-of-its-kind dual-radar payload — an L-band system with a 10-inch (25-centimeter) wavelength and an S-band system with a 4-inch (10-centimeter) system's signal is sensitive to different sizes of features on Earth's surface, and each specializes in measuring different attributes, such as moisture content, surface roughness, and motion. These characteristics are important for studying a variety of natural surface conditions, such as the amount of soil moisture available for vegetation to thrive or if land has subsided over operating together, the satellite's two radars will collect data synchronized in time and location, extending the sensitivity of the measurements to objects on the surface in a broad range of sizes. For example, S-band data will allow more accurate characterization of shorter plants, such as bushes and shrubs, while L-band data will sense taller vegetation, like describes NISAR as the most advanced radar system it has ever radar signals pass through clouds, they are ideal for continual monitoring of the in Earth's surface could provide early warning of impending natural disasters like volcanic eruptions and landslides. Measurements of ice sheets will reveal which areas are melting and which are growing through accumulated data could also reveal flooded areas that would otherwise be hidden by bad weather, providing help to rescue teams."NISAR is a model for the next generation of Earth-observation capabilities," Karen St. Germain, director of NASA's Earth science division, said Monday during a news will be lifted to orbit on an ISRO rocket known as a Geosynchronous Satellite Launch Vehicle. The orbit will pass close to the North and South Poles at about 464 miles above Earth's first 90 days will be devoted to deploying the spacecraft, including extending a 39-foot-wide gold-mesh antenna reflector, which looks a bit like a giant beach primary mission is scheduled to last three years. If the spacecraft is still operational at that point, it will be carrying enough propellant to continue for another couple of main part of the spacecraft is 18 feet long and weighs more than 5,000 pounds. Two 18-foot-long solar arrays will generate satellite includes two radar systems. One, built by NASA, will transmit microwaves with a wavelength of 25 feet. The other, built by ISRO, transmits 10-foot-long microwaves. The two wavelengths will provide details at different size scales. For the study of vegetation, the shorter wavelengths will provide more detail about bushes and shrubs, while the longer wavelengths will provide a clearer picture of taller plants like on the spacecraft will generate microwave pulses that will bounce off the gold-mesh reflector and travel down to Earth, bounce off the surface and return to the radar signals along the orbit will be combined to simulate a larger reflector. Bouncing radar signals from multiple angles allows the creation of 3D views.
News18
21 hours ago
- Science
- News18
NISAR AT A GLANCE
Agency: PTI Sriharikota (Andhra Pradesh), July 30 (PTI) As ISRO is set to launch the NISAR satellite onboard a GSLV-F16 rocket later on Wednesday, here are some of the significant highlights of the satellite jointly developed with US' NASA. Some of the highlights of the mission •In September, 2014, NASA and ISRO sign agreement to launch a joint Earth Observing Satellite Mission. •NISAR (NASA-ISRO Synthetic Aperture Radar) mission marks the first collaboration between the two top space agencies on a project of this scale and marks the next step in Earth-observing mission. •It becomes first satellite mission between the two space agencies for the use of double L-band and S-band radar frequencies to measure changes on the Earth's surface less than a centimeter across. •NASA would provide L-band Synthetic Aperture Radar, a high rate communication subsystem for science data, GPS receivers while ISRO would provide spacecraft bus, the S-band radar and the launch vehicle, GSLV-F16. •NISAR satellite would provide a 3D-view of Earth's land and ice. It would continuously monitor earthquake and landslide prone areas and determine how quickly glaciers and ice sheets are changing. •Data from NISAR would provide critical insights to help governments and decision makers for natural and human caused hazards. •It would measure the woody biomass and its changes, track changes in the extent of active crops, understand the changes in wetlands extent. • Map Greenland's & Antarctica's ice sheets, dynamics of sea ice and mountain glaciers. • Characterise land surface deformation related to seismicity, volcanism, landslides, and subsidence and uplift associated with changes in subsurface aquifers, hydrocarbon reservoirs. •NISAR is the most advanced radar system every launched by NASA or ISRO. It would generate more data on a daily basis than from any previous Earth satellite missions. • GSLV-F16 becomes the first launch vehicle for ISRO to launch an earth observation satellite in a Sun-synchronous Polar Orbit (SSPO). •The GSLV-F16/NISAR is the 102nd mission from Sriharikota. •The first 90 days after the launch would be dedicated to commissioning of the satellite in order to prepare the observatory for science VIJ SA view comments First Published: July 30, 2025, 12:30 IST Disclaimer: Comments reflect users' views, not News18's. Please keep discussions respectful and constructive. Abusive, defamatory, or illegal comments will be removed. News18 may disable any comment at its discretion. By posting, you agree to our Terms of Use and Privacy Policy.
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Business Standard
a day ago
- Science
- Business Standard
Eye in the sky: Nasa-Isro joint mission NISAR to launch on Wednesday
The imaging technology in Nisar will be able to provide very high-resolution data on changes as small as one centimetre in size on Earth's surface India is poised to script yet another history in the space sector through the launch of the Nisar (Nasa-Isro Synthetic Aperture Radar) mission, a collaboration between the National Aeronautics and Space Administration (Nasa) and the Indian Space Research Organisation (Isro), from Sriharikota in Andhra Pradesh on Wednesday. It is touted as the most expensive Earth observation satellite to date. The imaging technology in Nisar will be able to provide very high-resolution data on changes as small as one centimetre in size on Earth's surface. This will also democratise space sector data by providing free access to the research community. Scaling new heights Key highlights of the mission September 30, 2014: Isro and Nasa signed the deal for the Nisar mission July 30, 2025: Set to launch the satellite aboard the GSLV-Mk II rocket from Sriharikota, Andhra Pradesh, at 5:40 pm $1.5 billion: Total investment in the mission ₹469.4 crore: India's share 2,392 kg: Weight of Nisar What will Nisar do? According to Nasa, it will collect information about our planet's environment It will scan nearly all of Earth's land and ice surfaces twice every 12 days, providing insights into the expansion and contraction of ice sheets, sea ice, and glaciers, the deformation of its crust due to natural hazards, as well as natural and human changes to Earth's terrestrial ecosystems It will help in detecting volcanic changes, landslides, and climate change by taking images of the Earth 24 hours a day These measurements will be carried out by two radar systems — an L-band system built by the Jet Propulsion Laboratory in California, and an S-band system constructed by Isro's space applications centre in Ahmedabad Nisar is the first satellite to carry two radars working at two different frequencies The mission also marks the first hardware collaboration on an Earth-observing mission between the two space agencies. It will use SweepSAR technology for wide-area observation For the first time, a Nasa payload is being launched aboard India's GSLV (Geosynchronous Satellite Launch Vehicle) GSLV is deployed for a sun-synchronous orbit (SSO), which is traditionally a terrain of PSLV GSLV-F16 will put the satellite in a 734 km sun-synchronous orbit Other space cooperations in the pipeline 61: Number of countries with which India has so far signed space cooperative documents. A similar deal was also signed with five multilateral bodies. Trishna mission: Planned earth observation satellite mission by India and France, focusing on thermal infrared imaging for monitoring land and water surface temperatures, scheduled for launch this year
