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 …

Titan gives clues about early life on Earth

Billions of years ago, Earth may have been shrouded in a blanket of atmospheric haze like that seen on Saturn's moon Titan, providing organic material that nourished our planet's earliest life forms, researchers said on Monday. Some scientists look to Titan as a model for what early Earth's atmosphere may …

New silent jet could ease airport noise

Radically redesigned passenger jet could alleviate a major complaint of people who live near major airports

Indo-Russian space pact gets Putin OK

Clearing the way for joint space exploration and transfer of space technology to New Delhi, the Indo-Russian space cooperation agreement has been signed into a federal law by Russian President Vladimir Putin. Putin signed the pact into a federal law after both houses of Russian parliament unanimously approved the pact …

Pune scientists find may explain origin of cosmic rays

Scientist Joydeep Bagchi has discovered a unique set of ring-like structures, which may explain the origin of the mysterious ultrahigh energy cosmic rays. The find has drawn the attention of scientists across the world, as, among other things, understanding cosmic rays is vital to future human space explorations. A report …

First manned space mission? Scientists meeting to decide

The Indian Space Research Organisation will on November 7 kick off the first of a series of discussions among Indian scientists on a proposal for India's first manned space mission. Nearly 60 scientists from across the country have been invited for what ISRO is calling a preliminary informal meeting to …

2009 named year of Astronomy

An International Year of Astronomy will unfold in 2009, marking the fourth centenary of discoveries by Galileo that changed perceptions of the cosmos, the International Astronomical Union (IAU) said. National and local events involving professional astronomers will take place throughout 2009 at planetariums and public observatories, the IAU said in …

Did Martian life evade detection?

Achemical test used by the Mars Viking landers more than 30 years ago was not sensitive enough to detect signs of alien life even if they existed, a new study suggests. Researchers analyzed soil from several harsh, Marslike environments on Earth using the same gas spectrometry test employed by the …

China launches two satellites into orbit

China launched two satellites into space aboard a Long March-4B carrier rocket, the latest step in its ambitious space programme. Both satellites successfully entered their orbits after an early morning lift-off from the Taiyuan Satellite Launch Center in the northern province of Shanxi. The two Shijian-6 satellites are designed to …

On November 8, Mercury will cross the Sun

In a rare celestial occurence Mercury will make a rather feeble attempt to eclipse the Sun, this November. On November 8, Mercury will pass through inferior conjunction, a point in its orbit where it is directly between Earth and the Sun, reports space.com. Normally the innermost planet is not visible …

Extinctions linked to shifts in earth's orbit

If rodents in Spain are any guide, periodic changes in Earth's orbit may account for the apparent regularity with which new species of mammals emerge and then go extinct, scientists reported. It so happens, the paleontologists say, that variations in the course that Earth travels around the Sun and in …

Climate of distant planet measured

Astronomers have for the first time measured the day and night temperatures of a planet outside the solar system. Using Nasa's Spitzer Space Telescope the international team showed that the giant Jupiter-like planet, orbiting a star 40 light-years away, is always fiery hot on one side and cool on the …

Nasa unveils stunning pics of Martian crater

Nasa scientists have unveiled unprecedented close-up images of a massive crater on Mars they said could open the book on the Red Planet, from its formation to its history with water, the basis of life on Earth. The images, released on Friday, were taken three days ago by the Mars …

Cartosat-2 launch pushed to Nov

Cartosat-2, ISRO's hottest earth imaging satellite yet, may be put in orbit a month later than planned. It now looks set for a late November flight, according to officials at the space agency. The interest in Cartosat-2, which will be the nation's second 'mapping' satellite since May 2005, is in …

Two Americans win Physics Nobel for work on star origins

Americans John C. Mather and George F. Smoot won the 2006 Nobel Prize in physics on Tuesday for work that helped shed light on the beginning of the universe and the origin of galaxies and stars. The scientists were awarded the prize "for their discovery of the blackbody form and …

A demotion for Pluto

"The match was declared closed at the loss of one planet.' This could well have been the closing statement of anyone doing a running commentary on the proceedings of the 26th General Assembly of the International Astronomical Union (iau). The meeting held at the Czech capital, Prague between August 14 …

American astronomers claim that black holes may not exist

They swallow everything that comes their way and exercise the world's finest minds, but the portrayal of black holes as awe-inspiring celestial menaces may be woefully inaccurate, a team of scientists claim. Indeed, they might not exist at all. According to the researchers, the traditional astronomers' view of a universe …

Possible lakes on Saturn moon

Scientists have found the first widespread evidence of giant hydrocarbon lakes on the surface of Saturn's planet-size moon Titan. The cluster of hydrocarbon lakes was spotted near Titan's frigid north pole during a weekend flyby by the international Cassini spacecraft.

Hydrocarbon Lakes On Titan

Scientists said that they have found the first widespread evidence of giant hydrocarbon lakes on the surface of Saturn's planet-size moon Titan. The cluster of hydrocarbon lakes was spotted near Titan's frigid north pole during a weekend flyby by the international Cassini spacecraft, which flew within 950 kilometres of the …

Report warns of earth scientists shortage

Britain is facing a chronic shortage of geophysicists as fewer students choose to study geophysical science at university and leading scientists in the field retire, a new study reveals. The problem has reached crisis point and if the current rates of decline continue there will be no geophysics undergraduates by …

Scientists suggest hitting one asteroid with another

It worked for David as he squared up to Goliath, and now scientists hope a slingshot will help save the planet. Scientists at the French space agency, CNES, have calculated how to capture an asteroid and manoeuvre it into a near-Earth orbit, from where it can be flung into the …

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