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India’s Pixxel is set to launch three of its six hyperspectral imaging satellites aboard a SpaceX rocket from California on Tuesday, the first such network in the country’s nascent private space sector, Pixxel’s chief told Reuters.

The satellites will be placed in a sun-synchronous orbit at roughly 550 km, with the remaining three slated for deployment in the second quarter of the year.

The launch is scheduled to take place at the Vandenberg Space Force Base at around 10:45 a.m. Pacific Time (1845 GMT) on Tuesday – just after midnight the next day in India – subject to final approvals.

Pixxel’s founder and chief executive Awais Ahmed told Reuters that it plans to add 18 more spacecraft to the six it has already developed, eyeing a share of the satellite imaging market projected to reach $19 billion (roughly Rs.1,64,451 crore) by 2029.

The launch is a milestone for India’s nascent private space sector and for Google-backed Pixxel, a five-year-old startup.

It aims to use hyperspectral imaging — a technology that captures highly detailed data across hundreds of light bands — to serve industries such as agriculture, mining, environmental monitoring, and defence.

The company says its satellites can deliver insights to improve crop yields, track resources, monitor oil spills and country borders in much better details than current technology allows.

“The satellite imagery market today is around $4.3 billion (roughly Rs. 37,219 crore), with analysis adding another $14 billion (roughly Rs. 1,21,180 crore). By 2029, the market is projected to reach $19 billion (roughly Rs. 1,64,457 crore). Hyperspectral imaging, which is new, could realistically capture $500 million (roughly Rs. 4,327 crore) to $1 billion (roughly Rs. 8,676 crore) of this, plus additional revenue from analysis,” Ahmed said.

Ahmed said Pixxel has signed up around 65 clients, including Rio Tinto, British Petroleum, and India’s Ministry of Agriculture, with some already paying for data from its demo satellites. Contracts are in place for future data from the Firefly constellation.

“For defence-use cases, conversations are happening predominantly in the US and India, and in other regions through resellers and partners. Usually, government agencies want to see things launched and working before committing to procurement,” Ahmed, 27, said.

Pixxel expects to make first contact with the satellites about two-and-a-half hours after launch, with full commercial imaging capabilities expected by mid-March.

However, its expansion plans face stiff competition in a global satellite market dominated by the United States and China.

The US leads in commercial and government satellite launches, driven by private companies like SpaceX and government contracts, while China has emerged as a competitor with aggressive state-backed initiatives and a rapid expansion into low Earth orbit satellites.

India, despite its established spacefaring capabilities, holds only a two percent share of the global commercial space market. The government is now banking on private players to increase that share, aiming to grow the country’s space sector from $8 billion (roughly Rs. 69,258 crore) to $44 billion (roughly Rs. 3,80,976 crore) by 2030.

Pixxel hopes to leapfrog these challenges with its Firefly constellation, which boasts a 5-meter resolution and a 40-km swathe width—outperforming competitors such as Finland’s Kuva Space and San Francisco-based Orbital Sidekick, whose satellites typically have lower resolution and narrower coverage.

“If and once their commissioning is successful, they’ll have more imaging capacity than ISRO in the hyperspectral band, which for the Indian industry is a watershed moment,” said Narayan Prasad, chief operations officer at Netherlands-based space industry marketplace Satsearch.

© Thomson Reuters 2025

(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)

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New World Record Alert: Weather Satellite Records Longest Lightning Flash of 515 Miles

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August 1, 2025

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New World Record Alert: Weather Satellite Records Longest Lightning Flash of 515 Miles

Back in the year 2017, when a thunderstorm exhibited a lightning bolt, it was astonishing in many ways. Not only was it surprising, but it was a bolt that went 515 miles (829 Kilometers) long. In recent scientific advancements, researchers have confirmed the length of the bolt using archival satellite data. The lightning stretched and travelled from Texas to Missouri. This lightning has finally made a world record by beating the previous record holder, which was a bolt that went 477 miles in the year 2020.

According to Randy Cerveny, an Arizona State University professor, who played a significant role in the study, stated, “We call it megaflash lightning and we’re just figuring out the mechanics of how and why it occurs”.

More About Megaflash Lightning

Megaflash lightning could be best described as a lightning bolt that possesses the capacity to reach 62 miles in length. Whereas, the average lightning bolt is less than 10 miles in length. In order to find the reason behind this megaflash, the team assessed the data from the National Oceanic and Atmospheric Administration’s GOES-16 satellite. This satellite is embedded with a lightning mapper that monitors over one million bolts on a daily basis. This analysis determined that the length of the bolt was 515 miles.

Know How a Megaflash is Measured

With the advancements in satellites, the lightning mappers have become an accurate source of measuring lightning. Previously, ground-based radio networks did the work. As mentioned on Space.com, according to Michael Peterson, Georgia Tech Research Institute, “Adding continuous measurements from geostationary orbit was a major advance”. We are now at a point where most of the global megalfash hotspots are covered by a geostationary satellite, and data processing techniques have improved to properly represent flashes in the vast quantity of observational data at all scales”.

Typically, these megaflashes are rare and are generated from less than one percent of the thunderstorms. These megaflashes are mainly a result of a 14-hour churn or more.

To conclude, as mentioned on Space.com, Cerveny stated, “Those conditions aren’t much rare though. And, as our lightning mapping satellites curate new data, the potential megaflashes are expected to be visible. Likewise, there is a possibility that megaflashes, even larger in length, exist. Over time, they will also be observed.

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New Rogue Planet Discovered in Hubble Data Using Einstein’s Gravity Theory

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August 1, 2025

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New Rogue Planet Discovered in Hubble Data Using Einstein’s Gravity Theory

Astronomers found that a new rogue planet hides in the archival data that was gathered by the Hubble Space Telescope with the help of Albert Einstein and the happening of the events by chance, leading to success. These planets are also known as free-floating planets and do not orbit a star. These are just ejected from their home systems because of the planetary interactions. As they lack a host star, it is difficult to detect them by transit. However, the astronomers use microlensing with gravity, Einstein’s 1915 theory-based phenomenon of general relativity, in which massive objects warp space and bend light from the background stars.

Einstein’s Theory Helps Detect Hidden Rogue Planet

According to As per Przemek Mroz, a professor at the University of Warsaw free free-floating planets don’t orbit any star and drift alone through the galaxy. In order to find such objects, we need to use the technique of gravitational microlensing. At the time of using this technique, the light of the background star gets magnified temporarily. The physicists estimate the mass of the object by analysing the properties of the event.

The newly found event of microlensing, OGLE-2023-BLG-0524, was seen by Hubble on May 22, 2023. Observed by KMTnet, the event only lasted for eight hours and was discovered in the Galactic bulge by the OGLE survey. The team ruled out the presence of a host star; however, very nearby elements can’t be excluded completely.

Microlensing Event Reveals Free-Floating Planet in Hubble Data

The lens and source are more relative to each other; the physicists confirm the status of the object over time. The movement of 5 milliseconds per year could take 10 years to resolve with the recent instruments.

Hubble’s data from 1997 let the scientists rule out the bright host stars. Mroz said that if the lens were a bright star, we would have observed it, but we could not. This absence evoked 25%-48% of the possible stellar companions. This research is available on arXiv.

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Brightest Gamma-Ray Burst Ever Observed Reveals Cosmic Secrets

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August 1, 2025

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Brightest Gamma-Ray Burst Ever Observed Reveals Cosmic Secrets

On Oct. 9, 2022, astronomers recorded an extraordinary flash of high-energy light. This gamma-ray burst (GRB 221009A), nicknamed the “BOAT” (Brightest Of All Time), was the brightest and most energetic cosmic explosion ever witnessed. It came from a galaxy about 2 billion light-years away, and its blast of gamma rays briefly overwhelmed detectors on orbiting satellites. Scientists say such a powerful GRB is extremely rare – roughly a once-in-10,000-year event – and its record-setting nature offers a rare chance to study the death of a star and the physics of these extreme blasts.

Decoding the ‘BOAT’

According to the paper, GRB 221009A was first detected by NASA’s Fermi and Swift spacecraft. Its initial, powerful gamma-ray flash blinded detectors around the world. Its extreme nature marked it out immediately from other GRBs. Though astronomers originally detected the BOAT as an immensely bright flash of high-energy gamma rays, this flash was followed by a fading afterglow across many wavelengths of light, thus allowing non-gamma-ray-based telescopes to study it.

One of the biggest challenges was that the related supernova, SN 2022xiw, was hidden by the brilliance of the GRB and only visible much later. This behaviour highlights how the burst’s huge energy can disguise temporarily the underlying death of the star, making total observation challenging.

Insights on GRBs

Gamma-ray bursts such as this result from the collapse of a star’s core into a black hole. The newly born black hole powers twin beams of particles at nearly the speed of light, breaking through the star and creating the seen gamma rays. GRB 221009A data fit this model but surprise us. Astronomers employed the James Webb Space Telescope to locate the supernova burst but could not detect a hint of heavy elements such as gold or platinum in the debris. Meanwhile, NASA’s Fermi satellite observed an odd gamma-ray line, which is potentially the first unmistakable detection of electrons colliding with positrons (their antimatter counterparts) and annihilating in a GRB jet. These clues are helping researchers refine models of GRBs, stellar collapse, and how heavy elements are forged.

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Further reading:
Gamma-Ray Burst, GRB 221009A, BOAT, Supernova, JWST, Fermi, Stellar Death, Cosmic Explosion, Astrophysics, Space Discovery, NASA

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