Physical Science

Order of the National Green Tribunal regarding deterioration of Nayar river, Uttarakhand, 05/06/2025

Order of the National Green Tribunal in the matter of In Re: News Item titled "Nayar river is vanishing - a yatra reveals conservation goes beyond science and policy" appearing in ‘The Down To Earth’ dated 03.06.2025. The original application was registered suo-motu based on the news item titled "Nayar …

Haze over Titan: Volcanoes may be the cause -

By finding the likely solution to one puzzle about Saturn's largest moon, Titan, astronomers think they have come upon an explanation for another: How Titan sustains an atmosphere rich in methane. New observations by the Cassini spacecraft and ground-based telescopes have focused on trying to understand the peculiar patterns of …

Scientists confirm helpful Moon mineral

Switching their focus from the farthest galaxies to Earth's nearest neighbor, scientists using the Hubble Space Telescope have confirmed the presence of a mineral on the moon that might someday provide human explorers with life-sustaining oxygen and rocket fuel. Researchers said Wednesday that they could detect ilmenite

Scientists to examine venus for clues on greenhouse effect

Europe's first space mision to the planet Venus will shed new light on the greenhouse effect on Earth, scientists said yesterday. The Venus Express spacecraft is schduled for launch a week today and one is of its primary goals is to understand the nature of the intense greenhouse effect heating …

Astranauts to walk in space by 2007: China

China hopes to conduct a space-walk in 2007 and might recruit women into its next group of astronaut candidates, a senior space prodram official said on Monday. The Shenzhou 6 flight that ended early on Monday completed the first stage of China's manned space development plan, which focused on development …

Big stars are born near milky way`s black hole

Dozens of massive stars, destined for a short but brilliant life, were born less than a light-year away from the Milky Way's central black hole, one of the most hostile environments in our galaxy, astronomers reported. On Earth, this might be a bit like setting up a maternity ward on …

New sign of life on Mars

Living microbes found in what could be one million year old ice on aremote Arctic island support the theory that the frozen planet Mars could also sustain life, researchers said. An international team drilled ice core samples on the remote Svalbard islands at the extinct Sverrefjell volcano. They said that …

Molecular computers

a team of researchers at the Queen's University in Belfast, Ireland, is training human-made molecules to act as tiny computers. These specially-synthesised molecules that can act as nanoscale light sensors or molecular transistors (analogous to 2-way switches) can revolutionise medicine, industry and information technology. Sri Lanka-born organic chemist Amilra de …

Green tinge

here's some good news for those seeking non-toxic industrial colouring agents. Researchers at the Indian Institute of Technology (iit) in Chennai have developed an inorganic compound

Astronomer claims discovery of planet

A US astronomer has said he had discovered a 10th planet in the outer reaches of the solar system that could force a redrawing the astronomical map. If confirmed, the discovery yesterday by Mike Brown of the respected California Institute of Technology would be the first of a planet since …

Fusion power

the global quest to generate commercial energy through nuclear fusion, the same process that powers the Sun, took a concrete shape with France being selected as the host for the International Thermonuclear Experimental Project (iter). The decision came after 18 months of wrangling with Japan

Kalam`s 8-pt plan for space missions

The President, Mr A.P.J. Abdul Kalam, has outlined an eight-point agenda to guide India's space missions for the next 25 years. Inaugurating a symposium at the Vikram Sarabhai Space Centre (VSSC), Thiruvananthapuram, organised to commemorate the 25th anniversary of the first successful flight of the country's first satellite launch vehicle …

Super current created at Nevada site

Scientists at the Nevada Test Site said they generated a current equal to roughly four times all the electrical power on Earth. The current, which created pressures in materials millions of times greater than normal, was part of an experiment to better understand nuclear weapons. The experiment was conducted on …

Japan plans journey to center of the Earth

Japanese scientists are preparing to dig deep inside the Earth for the first time in human history to unlock the mysteries of life in an attempt to figure out how civilization came to be and how to save it. The researchers will collect the first samples of the Earth's mantle …

Meteor study pours cold water on warm Mars theory

A study of meteorites chipped off the surface of Mars suggests the planet has been frozen for 4 billion years and probably never had the warm wet conditions that could have given rise to life, two researchers said on Thursday. Their study of two meteorites that fell to Earth suggests …

Sun-like dusty star discovered

Astronomers in the US have discovered a dust enshrouded star located 300 light years from the earth which looks like a sun. Unlike hundreds of other stars covered with dust, where the dust is far from the star -- equivalent to beyond the orbit of Pluto -- this dust is …

Planet with three suns discovered

In a scenario out of "Star Wars,' astronomers have detected a planet outside our solar system with not one, but three suns, a finding that challenges astronomers' theories of planetary formation. The planet, a gas giant slightly larger than Jupiter, orbits the main star of a triple-star system known as …

Earth s bigger cousin

a team of us astronomers has found a planet that most closely resembles the Earth from among the 150 discovered so far outside our solar system. About 7.5 times as massive as the Earth, the new planet, possibly rocky, is located just 15 light years away from us. It travels …

Clue to life in Thar meteorite rain

Geologists in Rajasthan are baffled by large meteorites falling on western Rajasthan at regular intervals over the past few years. Scientists struggling to identify the cause of this celestial shower, have found the presence of amino acids and other life-supporting organic compounds in the meteorites, which has led to an …

To unlock secrets, Deep Impact slams into comet

NASA's Deep Impact spacecraft lived up to its name when it slammed into a comet with such force that the resulting blast of icy debris stunned scientists with its size and brightness. With the flyby stage of the two-part spacecraft watching from a safe distance, an 820-pound, copper-core "impactor' craft …

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