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Tag: Astronomy & Space Technology

How Global Positioning System (GPS) work?

GPS, which stands for Global Positioning System, is a satellite-based navigation system. It is a network of satellites and receiving devices that allows users to determine their precise location (in latitude, longitude, and altitude) and obtain accurate time information anywhere on Earth. The original […]

X-Ray Polarimeter Satellite (XPoSat)

Context: Indian Space Research Organisation (ISRO) has announced that India is set to launch its first X-ray Polarimeter Satellite (XPoSat) onboard the Polar Satellite Launch Vehicle (PSLV) scheduled to be launched in December 2023.  X-Ray Polarimeter Satellite:  Payloads: Polarisation of light:  Polarimetry: Why X-rays? […]

Aurora Borealis

Auroras: What makes this happen?  Do other planets get auroras? 

Gamma-Ray Bursts: Explained

What are Gamma-ray Bursts? Gamma-ray Bursts (GRBs) are extremely energetic explosions that produce intense flashes of gamma rays lasting from a few seconds to several minutes. Based on their duration, there are two kinds – Short GRBs that last 2 seconds or less and […]

What are Dark Matter and Dark Energy?

Context: The European Space Agency (ESA) has unveiled the first images captured by the Euclid space telescope designed to unlock the secrets of dark matter and dark energy. The primary objective of the telescope is to create the largest cosmic 3D map of the […]

What are Fast Radio Bursts?

Context: Researchers discovered a remote blast of cosmic radio waves that lasted less than a millisecond in June 2022. This “fast radio burst” is the most distant ever detected and its source is in a galaxy that took eight billion years to reach Earth. […]

What is a Marsquake?

Context: A global team of scientists led by the University of Oxford have announced the source of the largest-ever seismic event recorded on Mars.  Major Highlights about Marsquake Mars vs Earth:

China to double the size of Tiangong Space Station

Context: China plans to expand its space station to six modules from three in coming years, offering astronauts from other nations an alternative platform for near-Earth missions as the NASA-led International Space Station nears the end of its lifespan. Tiangong Space Station (TSS) International […]

NASA’s first asteroid samples land on Earth

Context: The OSIRIS-REX mission has ended with the return of regolith (space sample) from the primordial asteroid Bennu. OSIRIS-REx Mission: Asteroid Bennu: Why was Bennu chosen? Significance: Key Fact:

What are Moonquakes?

Context: An earthquake is caused when tectonic plates shift. But quakes themselves aren’t restricted to the earth. For example, small tremors have also been detected on the moon. About moonquakes Causes and types of moonquakes: The first three kinds of moonquakes mentioned above tend […]

Miniaturisation: The Future of Space and Nuclear Technology

Context: The Small Nuclear Reactors and Small Satelite Vehicles have increased the presence of private sector in these sectors, which may lead to cost efficient, environmentally sustainable and competitive future technologies. Nuclear Fusion and Energy  Nuclear fission is a reaction where the nucleus of […]

What are Picoflare jets?

Context: Researchers studying the findings of the Solar Orbiter Aircraft, a joint mission by the European Space Agency and the U.S. space agency NASA, recently announced that they have detected picoflare jets from the sun’s outer atmosphere. About Picoflare jets: Significance of Picoflare jets:

Space Sustainability

Context: India must contribute towards drawing up an international space resource management framework that balances competing objectives in pursuit of the use of outer space for peaceful purposes.  What is outer space? What are the related agreements and conventions? What are the associated issues […]

Aditya L1 Mission

Context: ISRO’s Aditya L1 mission was successfully launched from Satish Dhawan Space Centre on 2 September 2023.  About Aditya L1: Objectives: Payloads:  Significance of the mission: Lagrange points:

Pragyan confirms Sulphur near South pole of Moon

Context: The Indian Space Research Organisation (ISRO) announced that Pragyan, the rover of the Chandrayaan-3 mission, has confirmed the presence of Sulphur on the moon’s surface, near its South pole.  Major Highlights: Laser-Induced Breakdown Spectroscopy instrument (LIBS): Key Fact: Source: The Hindu

Near side and Far side of the moon

Context: The Vikram lander of Chandrayaan-3 made it one of the closest approaches of a lunar mission to the moon’s South Pole. However, like most of the lunar-landing missions before, Vikram too landed on the near side of the moon.  What are the moon’s […]

What next for ISRO after Chandrayaan-3 mission?

Context: The Indian Space Research Organisation (ISRO) has a packed schedule after Chandrayaan-3 as it is working on various missions.  Upcoming missions of ISRO:    i. Sun’s Photosphere  ii. Chromosphere and  iii. Corona Significance:


Context: India’s ISRO is launching Chandrayaan-3 mission to moon. However, along with ISRO other space faring nations are also planning mission towards moon. This article explores the reasons behind the same. Moon Recent missions planned or executed for Moon Reasons behind increased focus on […]


Context: Indian Space Research Organisation (ISRO) plans to launch the Chandrayaan-3 mission, India’s third lunar mission, to the moon on July 14.  Chandrayaan-3:  Objectives:  Soft-landing on Moon: Several advanced technologies in Chandrayaan-3: Significance of Chandrayaan-3: Why moon’s South Pole?  Further, South Pole is located […]

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