Space Technology

Reply by the Central Pollution Control Board (CPCB) regarding use of environmental compensation funds, 29/04/2025

Reply by the Central Pollution Control Board (CPCB) in compliance to the National Green Tribunal (NGT) order dated January 21, 2024 in the matter of ‘News item titled “Feeling anxious? Toxic air could be to blame” appearing in Times of India dated 10.10.2023’. NGT had directed CPCB to file a …

Economy launch for satellites

putting a satellite in space will now become cheaper due to a solar- powered motor being developed in the us. T he motor, called Integrated Solar Upper Stage ( isus ), is being developed jointly by the American Air Force Phillips Laboratory, New Mexico, and nasa's Lewis Research Center and …

Space travails

the efforts to monitor the world's changing climate from space received a major jolt on June 30 when National Space Development Agency ( nasda ), the Japanese space agency, lost connection with its Advanced Earth Observing Satellite ( adeos ). The agency has also lost a set of vital climate …

Celestial bomb

If a comet merely ten-thousandth the size of Hale-Bopp strikes the Earth, it would create an explosion ten times as powerful as all the nuclear weapons in existence at the height of the Cold War, according to a supercomputer simulation. David Crawford of Sandia National Laboratories, Livermore, California, has modelled …

World s largest telescope

Plans are being finalised for the world's largest radio telescope by astronomers from India, Australia, Canada and three other countries. The telescope

Unlike orbiters

The latest findings of the spacecraft Galileo, which has been providing valuable information about Jupiter and its satellites, relate to moon Callisto. The satellite shows no evidence of an internal magnetic field and is unlike the other satellites of Jupiter such as Io, Europa and Ganymede. In other satellites, the …

Distress signals

Further repair of the damaged space station Mir has been postponed till further notice. Mir was hit by a cargo vehicle overloaded with garbage on June 25. The repairs have been put off as the present three-member crew is weary from the troubleshooting its been called upon to do after …

Destination: red planet

neil armstrong had described his landing on the moon as "one small step for a man, one giant leap for mankind". Thrill-spilling Hollywood movies like Independence Day, Contact, Men in Black and Mars Attacks , has romanticised this leap by depicting how mysteries of a different world come virtually true. …

Cosmic rain

The seas are supposed to be the result of condensation of water vapour originating from the Earth itself. Now, there is evidence that the water may have a cometary source: the Earth's outer surface is being constantly showered with gigantic snowballs weighing 20-40 tonnes at a,6te of close to 43,000 …

Doomsday prediction

Researchers at the Jet Propulsion Laboratory in Pasadena, California, US, have discovered a star in the constellation Ophiuchus, which is on a collision course with the Oort Cloud, a region on the outskirts of the solar system containing billions of comets. If it hits the cloud, the star will send …

Design trouble

A recent NASA study indicates that a new multinational space station project in which the US, Russia, Japan and Europe are the major players will be the biggest technological project ever undertaken. However, researchers fear that the space station may not be adequately protected from micrometeoroids and other debris. The …

On borrowed time

AFTER seven years in space, the Hubble space telescope's efficiency is coming down. Radiation has degraded some of the telescope's electronics, while micrometeoroids have occasionally slammed into its mirror, damaging the surface. The craft also suffers from the effects of extreme temperature changes as it passes in and out of …

Take heed!

the phenomenon of global warming is surely not confirmed as yet. An area may have become warmer not because of an increase in global warming but because of certain natural variations. But whatever be the cause, it is time we took note. For Earth as a whole, 1996 ranked among …

By Jove, what a pull

ganymede, the largest satellite in the solar system with a radius of 2640 km, might have an internal magnetic field. This is the evidence brought back by the Galileo spacecraft from its two fly-bys of Ganymede, which revolves around Jupiter. The evidence is of significance as internal magnetic fields are …

Satellite and the changing natural world

the satellite industry has come a long way from the first commercial launch of intelsat (also known as the Early Bird) on April 6, 1965. Research and development work in a large number of fields is relying heavily on the data being sent from various satellites orbiting the earth. The …

Gliding back home

national Aeronautics and Space Administration (nasa) has come up with

Spy which loves nature

with the end of the cold war, the formidable us military apparatus is being deployed for more peaceful purposes. us spy satellites are homing in on natural phenomena such as clouds, glaciers, deserts and tropical rainforests to yield a virtual treasure trove of information about global climatic change and ecological …

Space science, biology and politics

in the specialised world of modern science, it is difficult to find cosmologists, planetary scientists and microbiologists in the same room. But a host of disciplines gathered in Washington dc, recently to discuss the expansion of work on the origins of the universe, planetary systems and life itself. The goal …

Distance dilemma

quasars are among the most fascinating objects in the universe. These relatively small objects are believed to be at the far edges of the universe. Given their distances, the amount of energy received from them is truly enormous, leading to one of the great unsolved mysteries of cosmology: what is …

Tidal comets

Comets are known to reside in a vast spherical halo called the Oort cloud, extending for about a light year beyond the orbit of Pluto. The forces responsible for their coming towards us are still not known. Now, John Matese and Daniel Whitmire of the University of Southwestern Louisiana, US …

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