SciTech Express

Bharat Sanchar Nigam Limited (BSNL) has taken a groundbreaking step by launching India’s first Direct-to-Device (D2D) satellite connectivity . This cutting-edge technology eliminates the need for traditional cell towers , allowing satellites to directly connect with consumer devices. With this initiative, India joins the global movement towards seamless, space-based communication , ensuring connectivity even in the most remote regions. This article delves into D2D satellite technology, its working principles, key features, global players, and its transformative impact on connectivity . What is Direct-to-Device (D2D) Satellite Connectivity? Definition Direct-to-Device (D2D) satellite technology enables satellites to function as cell towers in space , facilitating direct communication with mobile devices without the need for terrestrial infrastructure . This is a major advancement in global communication, ensuring ubiquitous network coverage . How Does D2D Satellite Connectivity Work? ...

ISRO's Next-Generation Launch Vehicle  (NGLV) Soorya: Pioneering India's Space  Exploration   The Indian Space Research Organisation (ISRO) has embarked on an ambitious project to develop the Next-Generation Launch Vehicle (NGLV), aptly named "Soorya." This initiative aims to bolster India's capabilities in space exploration, satellite deployment, and interplanetary missions. The Soorya project signifies a monumental leap in aerospace technology, aligning with global trends toward reusable and sustainable launch systems. 1. Overview of the Soorya Project Strategic Vision : The Soorya project is conceived to meet India's burgeoning demands for satellite launches, human spaceflight, and deep-space missions. It is envisioned to replace ISRO's current workhorse launch vehicles, offering enhanced payload capacities and reusability features. pib.gov.in Project Timeline : The development phase is projected to span approximately seven years, with the inaugural fli...

ISRO to Resume SpaDeX Experiments from March 15 The Indian Space Research Organization (ISRO) is set to recommence its Space Docking Experiment (SpaDeX) on March 15, 2025. This phase involves separating and re-docking the previously united satellites, Chaser and Target, to advance technologies essential for future missions. Key Highlights: Mission Overview: Launch Date: December 30, 2024 Satellites Involved: SDX01 (Chaser) and SDX02 (Target) Objective: Demonstrate in-space docking capabilities Recent Achievements: Successful docking of Chaser and Target satellites on January 16, 2025 Formation of a unified satellite system in elliptical orbit Upcoming Experiments: Start Date: March 15, 2025 Activities Planned: Separation of the unified satellite into Chaser and Target Re-docking maneuvers to test and validate docking procedures Simulation experiments preceding actual operations Operational Constraints: Elliptical orbit provides a 10-15 day window every two months for experiments Cu...

NASA Prepares Orion Spacecraft for Solar Array Installation NASA is advancing preparations for the Orion spacecraft by initiating the installation of its four solar array wings, a critical step for the upcoming Artemis missions. These arrays are essential for providing the necessary power to support both crewed and uncrewed missions to the Moon and beyond. Key Developments: Preparation for Solar Array Installation: Technicians at NASA's Kennedy Space Center have relocated Orion from its assembly stand to facilitate the installation of the four solar array wings. Functionality of Solar Arrays: Each of the four solar array panels is designed to generate approximately 11 kilowatts of power, collectively spanning about 63 feet. These arrays are integral components of Orion's European Service Module, which supplies power, propulsion, air, and water to the spacecraft. Protective Measures During Launch: Following the installation of the solar arrays, technicians will attach three 14-f...

Starlink: SpaceX’s Satellite Internet Revolution Introduction to  Star-link Star-link, developed by SpaceX , is a satellite-based internet service designed to provide high-speed broadband connectivity across the globe . Unlike traditional internet infrastructure, which relies on fiber optics or cellular networks, Star-link utilizes a constellation of low Earth orbit (LEO) satellites to deliver internet services. Key Features of  Star-link Low Earth Orbit Satellites: Star-link satellites orbit the Earth at approximately 550 km altitude , much closer than traditional geostationary satellites (35,786 km). This proximity significantly reduces latency , ensuring faster data transmission and seamless connectivity . Global Coverage: The system aims to provide broadband internet to every corner of the world , especially to remote and under served areas where conventional broadband is unavailable. The satellite network is continuously expanding, ensuring better coverage and hig...

SpaceX Falcon 9 Launches 21 Starlink Satellites with Successful Nighttime  Landing SpaceX, the private aerospace company founded by Elon Musk, successfully launched 21 Starlink satellites aboard its Falcon 9 rocket in a nighttime mission. The launch, which took place from Cape Canaveral, Florida, marks another significant milestone in SpaceX’s efforts to expand global internet coverage through the Starlink satellite constellation. This mission also showcased the company’s commitment to rocket reusability, as the Falcon 9 booster made a successful landing on a drone ship in the ocean. 1. Successful Nighttime Launch The Falcon 9 rocket lifted off under the night sky, creating a spectacular visual display. The launch was carefully planned to ensure optimal conditions for satellite deployment. The nighttime setting also allowed for clear visibility of the rocket’s ascent and stage separations, making it a breathtaking event for space enthusiasts. 2. Advanced Rocket Technology and Falco...

Mission SCOT: Advancing Space Situational Awareness Overview of Mission SCOT Mission SCOT (Space Camera for Object Tracking) is a significant milestone in India's space technology advancements, led by Digantara , a pioneering space-tech company. The mission aims to enhance Space Situational Awareness (SSA) by accurately tracking and mapping objects in Low Earth Orbit (LEO) . This development is crucial for ensuring safer space operations and preventing satellite collisions in an increasingly congested orbital environment. Objectives of Mission SCOT Tracking and Mapping Space Objects: Enhancing real-time observation and cataloging of space debris and satellites. Improving Space Safety: Helping satellite operators avoid collisions and maintain orbital integrity. Enhancing India's Space Capabilities: Contributing to the Indian space industry by developing indigenous SSA technology. Key Benefits of Mission SCOT Precise Object Tracking in LEO: Advanced imaging technology enable...