Sunday, December 25, 2011

Clouds on Venus are made concentrated sulfuric acid

 Clouds on Venus are made concentrated sulfuric acid...!
not Water as in earth's atmosphere....

Venus experienced tremendous volcanic activity, flooding the surface with new lava and filling the atmosphere with greenhouse gases, causing a runaway greenhouse effect...

 Image Credit: NASA/JPL-Caltech

Read more:

Monday, December 12, 2011

Lunar Eclipse (Real fotos & Simulation)

My colleague Mr.Sobhan Kumar Kompalli, Scientist in Space Physics Laboratory has clicked more than 100 snaps of the beautiful 'Lunar Eclipse' that entertained earthlings on 10-Dec-2011.
Here is a matrix of few selected snaps by the  amateur  photographer.

Also have a view of the Simulated Lunar Eclipse (animation)  which I generated using the open source software 'Stellarium'.

You are welcome to watch  the drama unfold......!
Photograph by Mr.Sobhan Kumar Kompalli (

Thursday, December 8, 2011

Global warming forces Birds to higher altitudes.

Global warming forces Birds to higher altitudes and not necessarily to higher latitudes....
finds a study.......
birds aren't migrating as rapidly as scientists previously anticipated, based on recorded temperature increases.

"However, our understanding of the response of tropical birds to warming is still poor," said German Forero-Medina, a Ph.D. student at Duke's Nicholas School who is lead author of the new study. "Moving to the north doesn't help them, because tropical temperatures do not change very much with latitude. So moving up to higher elevations is the only way to go, but there are few historical data that can serve as baselines for comparison over time."
Read more:

 "Elevational Ranges of Birds on a Tropical Montane Gradient Lag Behind Warming Temperatures" German Forero-Medina, John Terborgh, S. Jacob Socolar & Stuart L. Pimm. PLoS ONE, Dec. 7, 2011.

Wednesday, December 7, 2011

Predicting South Asian Floods..!

A new Project Aims to Predict South Asian Floods

Are our Glaciers melting .... faster ....???
How it affects the nearby lakes and rivers flow and will it cause floods...?

A new effort, dubbed HIMLA and led by Molly Brown of NASA’s Goddard Space Flight Center, aims to change this by harnessing state-of-the-art, satellite-based monitoring and modeling techniques.

Scientists will feed data from satellite instruments such as MODIS and ASTER into a hydrological model that will produce daily snow/water equivalence maps that will feed into other hydrological models to determine how much freshwater flows into the region’s rivers from snow and glaciers. 

The ultimate goal: an early warning system for flood prediction....

Read more from NASA's blog:

Wednesday, November 30, 2011

How GRAVITY influence FIRE ....?

Color image of a burning dropletWe have seen fire in earth where gravity is dominant.

Can you guess how the same fire out of same fuel would behave in zero gravity
or say in space....?

Read this interesting article to know more...

In space, where there is no up or down, flames behave in unconventional ways.

When a flame burns on Earth, heated gases rise from the fire creating a buoyant flow that draws oxygen into the flame and combustion products away from it. In space, warm gases do not rise, and molecular diffusion drives flame behavior.

"In space molecular diffusion draws oxygen to the flame and combustion products away from the flame at a rate 100x slower than the buoyant flow on Earth," Dan Dietrich, project scientist, NASA's Glenn Research Center, said.

Flames in space burn with a lower temperature, at a lower rate, and with less oxygen than in normal gravity. This means that materials used to extinguish the fire must be present in higher concentrations. 

Lightning produces waves in Atmosphere leaking into Space

Waves created by lightning flashes – here shown in blue, green, and red – circle around Earth, creating something called Schumann resonance. These waves can be used to study the nature of the atmosphere they travel through. (Credit: NASA/Simoes)

 At any given moment about 2,000 thunderstorms roll over Earth, producing some 50 flashes of lightning every second. Each lightning burst creates electromagnetic waves that begin to circle around Earth captured between Earth's surface and a boundary about 60 miles up. Some of the waves -- if they have just the right wavelength -- combine, increasing in strength, to create a repeating atmospheric heartbeat known as Schumann resonance.
NASA's Vector Electric Field Instrument (VEFI) aboard the U.S. Air Force's Communications/Navigation Outage Forecast System (C/NOFS) satellite has detected Schumann resonance from space. This comes as a surprise.

Fernando Simões, Robert Pfaff, Henry Freudenreich.Satellite observations of Schumann resonances in the Earth's ionosphereGeophysical Research Letters, 2011; 38 (22) DOI: 10.1029/2011GL049668

Thursday, November 17, 2011

High Resolution Global Topographic Map of Moon

LRO Camera Team Releases High Resolution Global Topographic Map of Moon.

click on the image to go to the official website and high resolution image.

Source: NASA-LRO

topographical map of the moon

Wednesday, November 16, 2011

Why Greenland is melting faster today...?

It is the sea temperature, not  the air temperature that determine how fast Greenland’s ice cap melted at the end of the last ice age.

The study, published in the journal Paleoceanography, was conducted by an international team of researchers headed by senior researcher Paul Knutz of the Geological Survey of Denmark and Greenland (GEUS).

”Our study included analyses of the marine temperature in the upper water strata, and they indicate that the temperature during the period of deglaciation was relatively high,” says Knutz.

"We can see that the high temperatures start immediately before and continued during periods when a lot of icebergs broke off from glaciers and when a lot of melt water was produced,” he adds. “Therefore we interpret the temperature anomalies as something that resulted in increased melting and a retreat of the ice cap.”

Read in more detail.

Thursday, November 10, 2011

first images of the Asteroid which came close to earth

First images of the Asteroid which came close to earth has been released...

You can watch the video
Team of astronomers decided to animate an entire sequence of their high-resolution radar images of YU55 to make a short movie clip from the data from  Deep Space Network antenna in Goldstone, California.

you can watch it

Courtesy: Nasa

You can download the first images video

Wednesday, November 9, 2011

Material which absorbs 99% UV,VIS,IR

A super Black material has been invented which is able to absorb 99% UV, VIS, IR radiation.

New 'super-black' material absorbs light across multiple wavelength bands
This close-up view (only about 0.03 inches wide) shows the internal structure of a carbon-nanotube coating that absorbs about 99 percent of the ultraviolet, visible, infrared, and far-infrared light that strikes it. A section of the coating, which was grown on smooth silicon, was purposely removed to show the tubes' vertical alignment. (Credit: Stephanie Getty, NASA Goddard)

or check SPIE Optics and Photonics.

Sunday, November 6, 2011

Asteroid flies close on 8th Nov.....

An Asteroid named  2005 YU55 will have a flyby near earth and moon on 8-Nov-2011.
NASA scientists will track asteroid 2005 YU55 from the agency's Deep Space Network.
At the point of closest approach, it will be no closer than 324,600 kilometers or 0.85 the distance from the moon to Earth.

Look at this animation.

More details and videos:


Saturday, November 5, 2011

Haze over Himalaya....

It's early winter time.... and now look at Himalayan slopes.....
Haze along the Himalaya
click this link for detailed information....

Image courtesy: Nasa Earth Observatory

Wednesday, November 2, 2011

Greenhouse gases will overpower ozone hole....?

Check this latest paper discussing how the influence on Southern Hemisphere climate of the Antarctic ozone hole is slowly dissipating and will be progressively overtaken by human-induced emissions of carbon dioxide and other greenhouse gases...
Ozone depletion over the past three to four decades has had a marked impact on Antarctic and Southern Ocean climate.  However, this will shortly be overwhelmed by the influence of greenhouse gases.....
discusses this study......

Signatures of the Antarctic ozone hole in Southern Hemisphere surface climate change.
David W. J. Thompson, Susan Solomon, Paul J. Kushner, Matthew H. England, Kevin M. Grise & David J. Karoly
Nature Geoscience 4, 741–749 (2011) doi:10.1038/ngeo1296

Friday, October 28, 2011

NOAA satellite Mosaic images

Here is the link to see the Mapped mosaics are daily images by NOAA seeries of satellites.
The data are from the AVHRR instrument on NOAA/ESA’s polar orbiting satellites (NOAA-16, 17, 18, 19, and METOP-A).
current Tropical Mosaic image

Here is the link and descriptions

Wednesday, October 26, 2011

COSP -- new tool for Cloud Simulations

Climate models have a hard time representing clouds accurately because they lack the spatial resolution necessary to accurately simulate the clouds....

Livermore scientists and international collaborators have developed a new tool that will help scientists better represent the clouds observed in the sky in climate models.

Stephen Klein, who along with LLNL's Yuying Zhang and other collaborators have developed the Cloud-Feedback-Model Intercomparison Project Observation Simulator Package (COSP).

The COSP is now used worldwide by most of the major models for climate and weather prediction, and it will play an important role in the evaluation of models that will be reviewed by the next report of the Intergovernmental Panel on Climate Change, Klein said.

More information: More information about the COSP appears in the August issue of the Bulletin of the American Meteorological Society.

Thursday, October 20, 2011

Neutrinos not faster than light ......? New finding....

The discovery that 'neutrinos travel faster than light' has recently in our Headlines....
Many questioned it's sanctity.... and were looking for possible errors....
check this page on my blog....

Now an independent experiment confirms that subatomic particles have wrong energy spectrum for superluminal travel.

check this
Title: A search for the analogue to Cherenkov radiation by high energy neutrinos at superluminal speeds in ICARUS

Look at this NEWS published by Nature
Finding puts brakes on faster-than-light neutrinos

Tuesday, October 18, 2011

Earth's sea-level and energy budgets from 1961 to 2008

Scientists have examined data from 1972 to 2008 and came up with striking observations......

They found the observed sea-lev el rise (1.8 ± 0.2 mm yr−1 from tide gauges alone and 2.1 ± 0.2 mm yr−1 from a combination of tide gauges and altimeter observations)

 The largest contributions come from ocean thermal expansion (0.8 mm yr−1) and the melting of glaciers and ice caps (0.7 mm yr−1), with Greenland and Antarctica contributing about 0.4 mm yr−1.

The aerosol forcing, inferred as a residual in the atmospheric energy balance, is estimated as −0.8 ± 0.4 W m−2 for the 1980s and early 1990s. It increases in the late 1990s, as is required for consistency with little surface warming over the last decade. This increase is likely at least partially related to substantial increases in aerosol emissions from developing nations and moderate volcanic activity.

for details, abstract and full length paper

Church, J. A., N. J. White, L. F. Konikow, C. M. Domingues, J. G. Cogley, E. Rignot, J. M. Gregory, M. R. van den Broeke, A. J. Monaghan, and I. Velicogna (2011), Revisiting the Earth's sea-level and energy budgets from 1961 to 2008, Geophys. Res. Lett., 38, L18601, doi:10.1029/2011GL048794.

Improved Topographic Map of Earth

NASA and Japan released a significantly improved version of the most complete digital topographic map of Earth.

Data users can download the ASTER global digital elevation model at: or .

For more information about ASTER, visit: . For more information on NASA's Terra mission, visit: .

Monday, October 17, 2011

Global Map of Ocean Salinity

Aquarius Yields NASA's First Global Map of Ocean Salinity

First global map of the salinity, or saltiness, of Earth’s ocean surface produced by NASA's new Aquarius instrumentThe first global map of the salinity, or saltiness, of Earth’s ocean surface produced by NASA's new Aquarius instrument reveals a rich tapestry of global salinity patterns, demonstrating Aquarius' ability to resolve large-scale salinity distribution features clearly and with sharp contrast. Image credit: NASA/GSFC/JPL-Caltech
› Full image and caption

Tuesday, October 11, 2011

workings of tsunamis

New computer model better explains workings of tsunamis

scientists have been working nearly blind in trying to understand how tsunamis work once they reach shore. Now, Frederic Dias from University College in Dublin and his team of mathematical and computer scientists have developed a computer simulation that they believe explains how tsunamis work once they reach shore. They have described their findings in Physical Review Letters.

More information: Local Run-Up Amplification by Resonant Wave Interactions,Phys. Rev. Lett. 107, 124502 (2011) DOI:10.1103/PhysRevLett.107.124502

Monday, October 10, 2011

Deforestation reduces rainfall...?

Deforestation in the rainforests of West Africa reduces rainfall over the rest of the forest, according to new University of Leeds research published in Geophysical Research Letters.

The study shows that changing land use from forest to crop land reduces rainfall over neighbouring trees by around 50% due to changes in the surface temperature which affects the formation of rain clouds.
More information: 'How does local tropical deforestation affect rainfall' by L Garcia-Carreras and Douglas J Parker is published in Geophysical Research Letters doi:10.1029/2011GL049099

Friday, October 7, 2011

Can Moon's shadow make Waves in the Atmosphere....?

    As the Moon blots out the Sun during a solar eclipse, the patch of the Earth that is cast into darkness cools. Meanwhile, the surrounding regions continue to receive the full brunt of the Sun's energy.
    This temperature difference causes waves in the atmosphere to build up behind the leading edge of the moon's shadow, like the bow wave of a ship.
   Although scientists have hypothesized about the moon's atmospheric wake since the 1970's, it wasn't until a July 22, 2009 eclipse in Japan and Taiwan that they observed the phenomenon directly.

Read details:

The research was published in Geophysical Research Letters. J. Y. Liu of the National Central University of Taiwan led the research.

Wednesday, October 5, 2011

SOLSTICE and EQUINOX as seen from Space

Here is how SOLSTICE and EQUINOX mean in reality.

Equinox ==== Sun's rays fall equally in both Hemisphere.....
Solstice  ==== Sun's rays falls on more area in summer hemisphere.
I have made this Equinox-Solstice matrix for simple and clear understanding.
We were all familiar with the cartoon graphics..... now this is the reality...

These images are by Meteosat in VIS channel.
Image courtesy:Dundee Satellite Receiving station.

Tuesday, October 4, 2011

Expanding Universe theory gets Nobel Prize

Three U.S.-born scientists won the Nobel Prize in physics Tuesday for discovering that the universe is expanding at an accelerating pace, a stunning revelation that suggests the cosmos will eventually freeze to ice.

Saul Perlmutter and Adam Riess of the United States and US-Australian Brian Schmidt won the 2011 Nobel Physics Prize Tuesday for their research on supernovae, the Nobel jury said.
The Royal Swedish Academy of Sciences said American Saul Perlmutter would share the 10 million kronor ($1.5 million) award with U.S.-Australian Brian Schmidt and U.S. scientist Adam Riess. Working in two separate research teams during the 1990s - Perlmutter in one and Schmidt and Riess in the other - the scientists raced to map the universe's expansion by analyzing a particular type of supernovas, or exploding stars.
They found that the light emitted by more than 50 distant supernovas was weaker than expected, a sign that the universe was expanding at an accelerating rate, the academy said.
Read more:

Monday, October 3, 2011

Arctic Ozone Loss!

A NASA-led study has documented an unprecedented depletion of Earth's protective ozone layer above the Arctic last winter and spring caused by an unusually prolonged period of extremely low temperatures in the stratosphere.
North polar region views showing levels of ozone and chlorine monoxide
Left: Ozone in Earth's stratosphere at an altitude of approximately 12 miles (20 kilometers) in mid-March 2011, near the peak of the 2011 Arctic ozone loss. Red colors represent high levels of ozone, while purple and grey colors (over the north polar region) represent very small ozone amounts. Right: chlorine monoxide – the primary agent of chemical ozone destruction in the cold polar lower stratosphere – for the same day and altitude. Light blue and green colors represent small amounts of chlorine monoxide, while dark blue and black colors represent very large chlorine monoxide amounts. The white line marks the area within which the chemical ozone destruction took place. Image credit: NASA/JPL-Caltech 

published online Sunday, Oct. 2, in the journal Nature, finds the amount of ozone destroyed in the Arctic in 2011 was comparable to that seen in some years in the Antarctic, where an ozone "hole" has formed each spring since the mid-1980s. 

Read more

Friday, September 30, 2011

Water Vapour is supersaturated in Martian Atmosphere

Water Vapour is in Excess of Saturation in the Atmosphere of Mars,  reveals the results from the SPICAM spectrometer on board ESA's Mars Express spacecraft.
It measured the altitudinal profile of water vapour in the martian atmosphere.....

Here is the published paper:
"Evidence of Water Vapor in Excess of Saturation in the Atmosphere of Mars", by L. Maltagliati, F. Montmessin, A. Fedorova, O. Korablev, F. Forget, and J.-L. Bertaux, published in the 30 September 2011 issue of Science.

Read a very good report here:

Thursday, September 29, 2011

Faster than LIGHT ....? Questions Relativity...?

Recently, a group of physicists have been working to measure the neutrinos generated from a particle accelerator at CERN. This group discovered neutrinos arriving faster than would have been expected and they appear to be traveling faster than the speed of light itself, but they draw no definitive conclusions. 

CNGS – CERN neutrinos to Gran Sasso
The trajectory of the neutrino beam
The CNGS project sends muon neutrinos from CERN to the Gran Sasso National Laboratory (LNGS), 732 km away in Italy. A proton beam from the Super Proton Synchrotron at CERN is directed onto a graphite target

(official website)

Read the Press Release
OPERA experiment reports anomaly in flight time of neutrinos from CERN to Gran Sasso

Here is the submitted paper

Download PDF

Physicists wary of junking light speed limit yet

Tuesday, September 27, 2011

Aurora & Forest Fire - as seen from Space

I am sharing a beautiful video uploaded by NASA yesterday 26th Sep. in youtube.

It was a real observation from the International Space Station on 17th of this month.

First you see the beautiful 'Aurora Australis' and then you can see forest fires in land.

If you look more keen, you can see also the air-glow too....

You can find more information here.

Saturday, September 24, 2011

World Space Week Resource Material in official WEBsite.

                World Space Week Resource Material prepared by our Team has been uploaded in the official WEBsite.

here is it .
Download PDF

Materials for Media already sent... 
...... will be published/ relayed soon...!

Celebrate the 'Golden jubilee of Human Space Flight'

Friday, September 23, 2011

Moon, Earth-Atmosphere as seen from Space

Earth's Moon
click image

Photographed by the Expedition 28 crew aboard the International Space Station, this image shows the moon, the Earth's only natural satellite, at center with the limb of Earth near the bottom transitioning into the orange-colored troposphere, the lowest and most dense portion of the Earth's atmosphere. The troposphere ends abruptly at the tropopause, which appears in the image as the sharp boundary between the orange- and blue-colored atmosphere. The silvery-blue noctilucent clouds extend far above the Earth's troposphere.

Image Credit: NASA

Seeing Equinoxes and Solstices from Space

This is how Solstice and Equinox look like .......
....... a wider perspective....
......view from space.

Equinox ------ Sun overhead equator ---- sunlight falls equally in both Hemispheres.
Solstice  ------ Sun is overhead northern/ southernmost position ---- sunlight falls maximum in Summer Hemispheres.

I have taken the selected days visible imagery from Meteosat and arranged them in a 2x2 matrix.....
Image courtesy: Dundee Satellite Receiving Station.

(Isn't it better and give real information than the long used

Inspiration obtained from:
Seeing Equinoxes and Solstices from Space

Tuesday, September 20, 2011

China getting ready to launch a space module

A Chinese rocket blasts off from the launch centre in Xichang in the southwestern province of SichuanChina is launching a Space module this month.........
 to initiate building its own space station......

By 2016 plans to put a laboratory into orbit...!!

Space station set up by 2020.
Read more:

Monday, September 19, 2011

World Space Week Competitions

How about taking part in World Space Week Competitions....?
Vikram Sarabhai Space Centre VSSC, the lead centre of ISRO coordinates World Space Week activities in Kerala to motivate students  and teachers.

Many competitions for School children......
Mars Habitat design competition for College Students...!


                  As part of the World Space Week celebrations, Vikram Sarabhai Space Centre,
Thiruvananthapuram is organising a Space Quiz during first week of October 2011.

                 Students of Class 10,11 and 12 can participate. Only one team is allowed to represent
a school. 

                 Schools can send the details of the participants to the following address on
or before September 25, 2011. 

World Space Week-2011
Vikram Sarabhai Space Centre,
Thiruvananthapuram – 695022

The exact venue and date of the competition will be individually intimated to the

Details will be updated in website soon.

Sunday, September 18, 2011

Why should we travel to SPACE ....?

Why should humans go to Space ........?

                               Exploration is the inquisite nature of human mind, which has historically led to the discovery of new continents and development of new habitats. Looking back, without these discoveries and advances, living on Earth would have been completely different from what we see today. Rapid developments in human race, limitations in resources on Earth, and the potential threat from weapons of mass destruction necessitates that we will have to boldly go far beyond the Earth's boundaries if the human race has to continue for thousands of years forward. More importantly, space explorations hold the key to unravel the secrets behind the origin and evolution of life and environment surrounding us. These drive the quest for space exploration and colonization.

Where else can earthlings colonize?

                              Being close by and relatively easy to reach, our natural satellite 'Moon' comes as the first choice. Humans have already landed on it and conducted many surveys and studies based on remote sensing and insitu sampling. The discovery of the presence of water in the lunar surface and its extremely thin atmosphere by payloads in India's Chandrayaan-1 has further boosted the renewed interest in moon. Few unmanned lunar orbital missions are currently exploring the Moon (e.g., NASA's GRAIL) and several others are in the pipeline (e.g., ISRO's Chandrayaan-2, NASA's LADEE and ARTEMIS, JAXA's SELENE, ESA's Lunar Lander). In fact, moon can serve as an intermediate base for explorations beyond.
                            Mars is the second choice. Explorations startaed in the 1960s are still continuing. Studies revealed that there is significant quantity of water in the form of ice in the Martian poles. A colony on Mars could use this as a source of oxygen. In contrast, Mercury and Venus are too hot, while Jupiter and Saturn are gas giants with no solid surface and hence may not be suitable for colonization. 

Thursday, September 15, 2011

NASA Unveils Space Launch System

Artist concept of future destinations
NASA announced on 14 Sep 2011,development of the Space Launch System (SLS) -- an advanced heavy-lift launch vehicle that will help take human exploration beyond Earth's orbit.

The SLS rocket will use a liquid hydrogen and liquid oxygen propulsion system. 

Have a look at this animation and related links...

A step closer to travel in space...!!!
Artist concept of SLS on launchpad

Tuesday, September 13, 2011

Mars Habitat Design Competition

Vikram Sarabhai Space Centre (VSSC) is conducting a ‘Mars Habitat Design Competition’  for the college students of Kerala in connection with World Space Week celebrations from October 4 to 10, 

Check this link for the official website

Take part in this interesting and creative competition ........
Let your  imagination  spread wings and fly to Mars..... and beyond.....

Best Wishes 

Monday, September 12, 2011

Astronomical photography awards 2011

Have a look at these Astronomical photography which won the awards recently...!
Marvelous indeed...!

click on the image to reach the Nature's website (slide show)with all those snaps.!
Lunar eclpise

Saturday, September 10, 2011

Oh No! A 6 Ton Satellite is falling back to earth....

A defunct Satellite ' The Upper Atmosphere Research Satellite, or UARS,  ' is falling back into earth... this month....!!

Where will it's impact be...?

Scientists say it's not likely to hit a populated place.... (statistics says so)

Though most of its parts would burn away .... still about 150 kg may reach to ground!!!!!

The satellite is so big, its plunge through the atmosphere will be visible -- if anyone is around to see it.

WATCH  for it above your head..!!

UPDATES official website

Read more here:

Tuesday, September 6, 2011

CAP Cloud ! Have you seen it before ......?

Have a look at these CAP clouds seen in France...!
Guess how they form....!
Guess the wind direction ...!
and then
check this link for the correct answer and explanation....!

India-Pak border @ Night

See this magnificent image taken from the International Space Station few days back.....
See the flood lit border line between India and Pak.
U can also see the air glow (greenish) occuring in the ionosphere....
click on the image to zoom.

Image courtesy: Nasa Earth Observatory
You can read the full description in this link...