Science & Technology Current Affairs

Science and Technology Current Affairs 8 September 2026: ISRO EOS-05 & Space News

Important Science and Technology Current Affairs for 8 September 2026, with a focus on ISRO's EOS-05 Earth observation mission, GSLV-F17, orbit-raising operations and India's changing space-sector ecosystem. Useful for UPSC, SSC, Railway, State PCS and interview preparation.

Published: 8 September 2026 · Category: Science & Technology · Exam-focused Current Affairs

1. ISRO completes third and final orbit-raising manoeuvre of EOS-05

The Indian Space Research Organisation (ISRO) successfully completed the third and final orbit-raising manoeuvre of the EOS-05 satellite at 8:57 pm on 7 September 2026.

According to ISRO, the Liquid Apogee Motor (LAM) engine fired for approximately 1,247 seconds. Following the manoeuvre, the estimated orbit was approximately 34,903 km × 35,884 km.

ISRO also reported that the spacecraft's health and functioning remained normal.

Satellite EOS-05

Engine Liquid Apogee Motor (LAM)

Final orbit manoeuvre 7 September 2026

Engine firing About 1,247 seconds

            Exam Point:

            An orbit-raising manoeuvre changes a spacecraft's orbit
            to place it into its intended operational trajectory.

2. EOS-05 launched aboard GSLV-F17 on 4 September 2026

EOS-05 was launched on 4 September 2026 aboard India's GSLV-F17 launch vehicle.

EOS-05 is an Earth-observation spacecraft designed to provide imaging capabilities from geosynchronous orbit. The mission is significant because it expands India's Earth-observation capability in a geosynchronous orbit.

            Interview Question:

            What is the primary purpose of an Earth-observation
            satellite?

            Answer:

            Earth-observation satellites collect data and imagery
            about Earth's land, oceans and atmosphere for applications
            such as agriculture, disaster management, environmental
            monitoring and resource mapping.

3. EOS-05 becomes an important Indian geosynchronous Earth-observation mission

EOS-05 is significant for India's space programme because it is an Earth-imaging satellite intended to operate from geosynchronous orbit.

Geosynchronous satellites have orbital periods that match Earth's rotation period. Depending on their orbital inclination and other parameters, they can provide repeated coverage of specific regions.

            Science Concept:

            A geostationary orbit is a special type of geosynchronous
            orbit in which a satellite appears fixed over one point
            on Earth's equator.

4. India's space sector reforms aim to increase private participation

India's space ecosystem is undergoing reforms designed to increase participation by private companies, startups and other non-government entities.

ISRO continues to remain central to advanced research, strategic missions and major national space capabilities, while policy reforms aim to create greater opportunities for the private sector.

            Exam Connection:

            India's space reforms are linked with innovation,
            commercialisation of space activities, startups,
            technology development and public-private partnerships.

5. IN-SPACe plays a key role in India's private space ecosystem

The Indian National Space Promotion and Authorisation Centre (IN-SPACe) is the organisation responsible for promoting, enabling and regulating non-government entities in India's space activities.

IN-SPACe is intended to provide a framework through which private companies and startups can participate in space activities while using India's space infrastructure and capabilities under the applicable rules.

Full Form Indian National Space Promotion and Authorisation Centre

Focus Private participation in space sector

            Exam Point:

            IN-SPACe is an important institution to remember for
            questions on India's space-sector reforms and private
            participation.

Quick Revision: Science & Technology Current Affairs 8 September 2026

EOS-05 is an Earth-observation satellite.
EOS-05 was launched aboard GSLV-F17 on 4 September 2026.
ISRO completed EOS-05's third and final orbit-raising manoeuvre on 7 September 2026.
The Liquid Apogee Motor (LAM) fired for about 1,247 seconds.
EOS-05's estimated post-manoeuvre orbit was about 34,903 km × 35,884 km.
IN-SPACe promotes, enables and regulates non-government entities in India's space sector.
ISRO remains central to India's advanced and strategic space missions.
India's space-sector reforms aim to increase participation from private companies, startups and industry.

Science & Technology Current Affairs FAQs

What is EOS-05?

EOS-05 is an Earth-observation spacecraft developed as part of India's space programme and launched aboard GSLV-F17.

When was EOS-05 launched?

EOS-05 was launched aboard GSLV-F17 on 4 September 2026.

What happened to EOS-05 on 7 September 2026?

ISRO successfully completed the third and final orbit-raising manoeuvre of EOS-05 on 7 September 2026.

What is IN-SPACe?

IN-SPACe stands for Indian National Space Promotion and Authorisation Centre. It promotes, enables and regulates space activities by non-government entities in India.

What is the difference between geosynchronous and geostationary orbit?

A geosynchronous satellite has an orbital period equal to Earth's rotation period. A geostationary orbit is a special geosynchronous orbit in which the satellite appears stationary over the equator.