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Indian Space Research Organisation (ISRO) will turn its focus on science experiments in 2023 with dedicated missions to the Sun — Aditya — and the moon — Chandrayaan-3 — even as the nascent start-up sector is set to soar in the space applications segment. The upcoming year will also witness a series of experiments on India’s maiden human space flight — the Gaganyaan project — with the first uncrewed mission expected in the last quarter of 2023 aimed at validating the performance of the human-rated launch vehicle, orbital module propulsion system and recovery operations.

ISRO further plans to conduct the first runway landing experiment (RLV-LEX) of the reusable launch vehicle early next year from Aeronautical Test Range in Karnataka’s Chitradurga, Union Minister of State in Prime Minister’s Office Jitendra Singh told Parliament this month.

Indian start-ups that marked their arrival with the sub-orbital flight by Skyroot Aerospace’s Vikram-S rocket, the first by a private sector company and the launch of Pixxel’s hyperspectral satellites Shakuntala, on SpaceX’s Falcon-9 rocket in April and Anand onboard ISRO’s PSLV in November.

Skyroot Aerospace, which launched India’s first privately developed rocket in November, plans to put a client satellite in orbit sometime next year, while Agnikul Cosmos, a start-up incubated on the IIT-Madras campus, has also lined up the test flight of its highly customisable Agnibaan rocket.

“We are developing six commercial hyperspectral imagery satellites which will be ready for launch next year,” Awais Ahmed, Pixxel co-founder and CEO, had told PTI.

Ahmed said many more rocket companies around the globe will see their first orbital launches come to fruition which will lead to a rocket-themed game of thrones as they vie for the same set of customers sending satellites into space.

The start-ups are eyeing the huge space applications market in the country, which was earlier the sole domain of ISRO, carving a niche for themselves in the earth imaging sector, developing rockets to launch small satellites, designing cheaper fuels for satellites and even planning to take tourists on a space journey.

“The potential for innovative space applications is immense, especially if established aerospace companies form partnerships with businesses that traditionally haven’t ventured into orbit, e.g. pharmaceutical, agriculture companies,” Chaitanya Dora Surapureddy, Chief Financial Officer, DhruvaSpace, told PTI.

DhruvaSpace had launched two satellites Thybolt 1 & 2 onboard ISRO’s PSLV C-54 mission that demonstrated the ability to conduct amateur satellite communication which will help ham radio operations.

Surapureddy said DhurvaSpace has already bagged its first commercial contract worth Rs 20 crore to build satellites.

“The number of space startups in India has already crossed 100 and these startups have raised funding of more than $245.35 million (roughly Rs. 2,000 crore),” Lt Gen A K Bhatt (retd.), Director General, Indian Space Association (ISpA) told PTI.

Agnikul also inaugurated its first launchpad and mission control centre at ISRO’s Satish Dhawan Space Centre at Sriharikota.

In 2022, the industry witnessed some major milestones with NewSpace India Limited (NSIL) authorising the space conglomerate formed by Larsen & Toubro (L&T) and Hindustan Aeronautics Limited a Rs. 860-crore contract for the commercial development of the next five Polar Satellite Launch Vehicles (PSLVs).

OneWeb also signed up the services of ISRO’s launch vehicle to put 36 satellites in low earth orbit from Sriharikota. A follow-up launch of another 36 satellites is expected next year.

The OneWeb contract for ISRO is learnt to be an outcome of some aggressive bidding by the Indians after the Ukraine conflict knocked off the Russian space launch capabilities off the market.

Chaitanya Giri, space consultant with Research and Information System for Developing Countries likens the aggression in the Indian space sector to the one displayed by Sourav Ganguly’s cricket team.

“Our earlier approach was like Mohammad Azharuddin-led cricket team – very mellow and gentlemanly. The newfound aggression is because of India’s rising geopolitical stature. Also, the Russian market has become a no go due to the Ukraine conflict. So is the Chinese market. Now, it is Advantage India,” Giri told PTI.

He said Indian start-ups should also vie for international contracts and not look at ISRO for business.

“ISRO is not an entity that will sustain business for them. Indian space start-ups, MSMEs and big corporates will have to strike business arrangements amongst each other. These B-2-B arrangements need to grow,” Giri said.


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Is the Wheel of Ghosts an Ancient Observatory? New Study Suggests Otherwise

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Is the Wheel of Ghosts an Ancient Observatory? New Study Suggests Otherwise

The ancient Rujm el-Hiri site, situated in the Golan Heights and often referred to as the “Wheel of Ghosts,” has been re-evaluated, with its long-standing identification as an astronomical observatory coming under scrutiny. Researchers have determined that geodynamic changes over millions of years have altered the site’s orientation, raising questions about its original purpose. These findings, derived from advanced geophysical and remote sensing techniques, provide a new perspective on this enigmatic archaeological structure.

Geophysical Insights Challenge Established Theories

According to the study published in Remote Sensing, geodynamic movements averaging 8–15 millimetres per year over 150 million years shifted the site’s alignment significantly. Researchers from Tel Aviv University and Ben-Gurion University, led by Dr Olga Khabarova and Prof Lev Eppelbaum, concluded that the structure’s current orientation does not match celestial patterns, contradicting earlier interpretations of its function. The entrances and radial walls, when reconstructed to their original positions, were shown to lack alignment with solstices, equinoxes, or other astronomical markers.

Advanced Techniques Reveal Archaeological Landscape

As reported by SciTech Daily, the researchers employed geomagnetic analysis and satellite technology to document the surrounding archaeological features within a 30-kilometre radius of the Sea of Galilee. Unique circular structures, some up to 90 metres in diameter, were identified alongside burial mounds and round enclosures. These findings suggest agricultural and herding purposes rather than purely ceremonial or observational roles.

A Broader Perspective on Rujm el-Hiri’s Role

Dr Michal Birkenfeld of Ben-Gurion University emphasised in his statement to SciTech Daily that this reassessment enriches understanding of ancient life in the Golan Heights. The research team noted that the study reopens debates about the site’s purpose while highlighting its integration into a broader archaeological landscape. By questioning past assumptions, the study encourages further exploration of how ancient communities interacted with their environment.

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Scientists Investigate Hypernuclei To Understand Subatomic Forces and Neutron Stars

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Scientists Investigate Hypernuclei To Understand Subatomic Forces and Neutron Stars

A breakthrough has been reported in particle physics, focusing on hypernuclei—rare atomic systems that form through the inclusion of hyperons, particles containing at least one “strange” quark. Unlike the ordinary nuclei of atoms made of protons and neutrons, hypernuclei exhibit unique properties that may offer insights into subatomic forces and the extreme conditions present in neutron stars. Scientists aim to deepen the understanding of these fleeting structures and their implications for astrophysics and nuclear physics.

Insights from Advanced Research

According to a study published in The European Physical Journal A, researchers led by Ulf-G. Meißner from the Institute for Advanced Simulation in Jülich and the University of Bonn applied nuclear lattice effective field theory to investigate hypernuclei. This approach simplifies the study of nuclear interactions by focusing on protons, neutrons, and hyperons rather than quarks and gluons, providing a computationally feasible way to study these particles.

This study specifically examined Λ-hyperons, one of the lightest hyperons, and their interactions within hypernuclei. A lattice-based model was utilised, where particles are simulated within a discrete grid, reducing the complexity of the calculations. Forces governing the structure of hypernuclei were calculated, achieving agreement with experimental data within a 5 percent margin of accuracy. The method also allowed the study of hypernuclei with up to 16 constituents, expanding the scope of earlier models.

Implications for Neutron Stars

Hypernuclei are theorised to form in neutron stars due to the immense pressure and density in their cores. The measurable properties of neutron stars, such as mass and radius, could be influenced by the presence of hyperons. By using advanced X-ray telescopes and gravitational wave detectors, scientists hope to detect deviations from existing models, potentially confirming hyperons’ role in these environments.

Further research is required to refine models and explore pion exchanges, which may alter the forces within hypernuclei. Enhanced experimental data and precision in accelerator experiments are expected to contribute to this field in the future.

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Mathematicians Uncover Science Behind Hula Hooping and Body Dynamics

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Mathematicians Uncover Science Behind Hula Hooping and Body Dynamics

The mechanics of hula hooping have been analysed by researchers, uncovering how body shapes and motions influence the ability to keep a hoop spinning against gravity. Insights from the study have raised intriguing questions about body dynamics, energy efficiency, and potential engineering applications. The findings, based on experiments and mathematical modelling, offer new perspectives on an activity often overlooked in scientific research. Key revelations include the role of body curvature and slope in maintaining the hoop’s motion.

Study Details Dynamics of Hula Hooping

According to research published in the Proceedings of the National Academy of Sciences, experiments were conducted using miniature robotic models at New York University’s Applied Mathematics Laboratory. Different shapes, such as cylinders, cones, and hourglasses, were replicated at one-tenth human scale to examine their impact on hula hooping efficiency. Motorised motions were applied to these models, and high-speed cameras captured the behaviour of hoops launched onto the robotic forms.

Findings indicated that successful twirling could be achieved without significant variation based on body cross-section shapes, such as circles or ellipses. However, maintaining the hoop’s height against gravity required specific physical attributes, particularly sloping hips and a curvy waist. These characteristics provided the necessary angles for upward thrust and stability, helping to keep the hoop in motion.

Mathematical Modelling and Broader Applications

Senior researcher and associate professor Leif Ristroph explained in a press release that mathematical models were developed to explain the physical principles observed. These models offered insight into the interaction between body motion and hoop dynamics, which could be extended to applications such as energy harvesting and robotics.

The researchers highlighted that the work bridges a gap in the understanding of a popular activity, while also demonstrating its relevance to technology. Ristroph noted that these findings could lead to improvements in robotic systems used in manufacturing, as well as innovative ways to utilise energy generated by vibrations.

This research sheds light on the science behind hula hooping, offering practical applications while enhancing the understanding of human and mechanical motion.

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