Arif Nehal

Arif Nehal


Arif Nehal's articles

desert_storm_2012

Dust storms affecting ocean phytoplankton

MIT study finds that the short residence of iron in surface waters makes phytoplankton very sensitive to any changes in the level of desert dust in the ocean. Desert dust is one of the only sources of ocean iron. Each spring, dust storms in the deserts of Mongolia and n

August 31, 2015

rainy_day

How effective is rain in cleaning the atmosphere

Atmospheric chemists at MIT claims to have obtained the most accurate estimates of rates of coagulation between rain droplets and aerosol particles that in turn could be used to determine the extent to which natural rain may contribute to keeping the atmosphere

August 30, 2015

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Powerful outburst event observed at Comet 67P two weeks before the perihelion

On July 29, 2015, Rosetta’s OSIRIS camera captured images showing a dramatic outburst at Comet 67P/Churyumov–Gerasimenko, registered by several of its instruments from their vantage point 186 km (115 miles) from the comet.As forecasted, the comet reaches

August 13, 2015

co2

Underwater volcanic vents preview future ocean habitats

An underwater study of fish in their natural environment, first of its kind, by University of Adelaide marine ecologists, shows how anticipated ocean acidification may devastate temperate marine habitats and biodiversity.Oceans have already absorbed a large volume of

August 12, 2015

Perseid in the Moonlight_081209_JWestlake_720X450

Perseid meteor shower: year's greatest meteor show peaks on August 12 and 13

The peak of this year's Perseid meteor shower is just around the corner, forecasted during the overnight hours of August 12 and 13 in the absence of any or much moonlight.Perseids originate in Comet 109P/Swift-Tuttle, which was discovered in 1862 by Lewis Swift and

August 11, 2015

CERES

Fascinating world of Ceres with its mysterious bright spots and a pyramid-shaped mountain

Dwarf planet Ceres continues to fascinate scientists with it’s pyramid like mountain and bright spots on its surface. NASA’s Dawn spacecraft, the first probe to reach this dwarf planet on March 6, 2015, continues to return images and other data of this

August 10, 2015

image_of_distribution_of_grbs_on_the_sky_balazs_l_f

The largest structure of the observable universe found - a ring of galaxies five million light years across

A Hungarian-US team of astronomers have found what may be the largest structure in the observable universe, a circular ring of nine gamma ray bursts and hence nine galaxies that stretches five billion light years across.Gamma-ray bursts (GRBs) are the most luminous

August 10, 2015

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CERN scientists developping magnetic shield for astronauts’ protection against cosmic rays

A team at CERN is working with the European Space Radiation Superconducting Shield (SR2S) project to develop a superconducting magnet that could guard astronauts against cosmic radiation during deep-space missions.For deep space missions to be safe, we need to find out

August 08, 2015

japan_fire_fountain

Ancient flood volcanoes might have influenced climate to a great extent

Lori Glaze of NASA's Goddard Space Flight Center in Greenbelt, Maryland and her team developed a computer model to calculate whether the plume of ash and gas above a large fire-fountain volcano could have reached stratosphere to alter the climate and the result was

August 08, 2015

The_comet_67p

Rosetta's one year at the Comet 67P/Churyumov–Gerasimenko

With comet 67P’s closest approach to the Sun less than one week away, ESA’s unmanned spacecraft Rosetta celebrated one year at the comet on August 6, 2015.After a 10-year chase spanning more than 6.4 billion km (4 billion miles) across the Solar System, the

August 08, 2015

asteroid

A group of mysterious asteroids that could explain the origin of NEOs discovered

Lying near the asteroid rich abyss between Mars and Jupiter high above our Solar System, a unique family of space rocks called Euphrosyne asteroids just got discovered by the scientists at NASA's Jet Propulsion Laboratory (JPL).The Euphrosynes are distributed at the

August 05, 2015

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NASA's Kepler mission discovers closest Earth twin yet

NASA made an announcement on July 23, 2015 of it's Kepler space telescope spotting the most Earth-like alien planet yet discovered - a world called Kepler-452b that's just slightly bigger than our own and orbits a sun-like star named Kepler-452 at about the same

July 25, 2015

sleeping

Uranium mines behind Kazakhstan villagers' mysterious 'sleeping sickness'

Mysterious "sleeping sickness" that baffled doctors and researchers since it's first known attack in March 2013, affected more than 140 people in Kalachi and Krasnogorsk, two villages in northern Kazakhstan, with a total of 810 people, mostly ethnic Russia

July 24, 2015

kaist_wifi_charging_on_test_f

Omnidirectional wireless charging technology for mobile devices developed

A new wireless power transfer (WPT) system developed by a group of researchers at The Korea Advanced Institute of Science and Technology (KAIST) is capable of charging multiple mobile devices concurrently and with unprecedented freedom in any direction, even while holdi

July 23, 2015

deforestation causes HI_104236

Continued destruction of Earth’s plant life places humankind in jeopardy

If humans continue destroying plants at the current pace, the lack of irreplaceable biomass may soon endanger present human civilization and make it unsustainable - according to a paper published recently by University of Georgia researchers in the Proceedings of the Na

July 17, 2015

MIT Zebras Space 1

Mystery of equatorial noise solved

A team from MIT, the University of California at Los Angeles, the University of Sheffield, and elsewhere has detected a remarkably orderly pattern amid the "equatorial noise." The discovery may help scientists to more accurately model the space environment an

July 16, 2015

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Humanity rapidly depleting one third of Earth's largest aquifers

In two new studies led by the University of California, Irvine (UCI), scientists mapped 37 of the world's largest underground basins using NASA's Gravity Recovery and Climate Experiment (GRACE) satellites and concludes that humanity is rapidly depleting one

July 12, 2015

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Study finds 70% decrease in the seabird population since 1950s

Compiling a global database of seabird population size records from English language literature, researchers at the University of British Columbia monitored 513 seabird populations (of total 3 213) and concluded that the monitored seabird populations of our world have d

July 11, 2015

debris_flows_in_Mars

Istok crater on Mars hints at Earth-like climate

A new study of young Istok crater led by Tjalling de Haas of Utrecht University in the Netherlands reveals that Mars, a planet of paradoxes, may have had a climate that resembles that of our own in the recent past.Istok crater, located in the Aonia Terra region of Mars,

July 10, 2015

liliac_web

Species endangered by agricultural landscapes

According to a research led by the University of Exeter, in which bird populations across cultivated mango orchards and natural habitats in the Kruger to Canyons Biosphere region in South Africa was monitored, replacing a natural habitat with a agricultural landscape ca

July 08, 2015

volcanic_lightning_above_mount_rinjani_by_oliver_spalt

Whistler waves created by volcanic lightning may help elucidate the Earth's plasmashpere

Volcanic lightning creates whistlers, very low frequency electromagnetic waves, that propagate into the magnetosphere. In the July 2015 issue of Physics World magazine, science writer Ian Randall investigates how researchers are trying to use studies on these whistlers

July 07, 2015

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Final 'all clear' for historic July 14 Pluto flyby

Having found no potential threats on the way, NASA's New Horizons spacecraft stays course to Pluto, as it speeds closer to it's historic July 14, 2015 flyby of Pluto and it's five moons. Launched from Cape Canaveral on January 19, 2006, New Horizons woke up

July 04, 2015

Pelamis_oscillating_snake like_device

Ireland takes first steps toward wave energy

Pelamis Wave Power announced last week that it was shortlisted as one of just two technology developers to progress to the next stage of a WestWave procurement process with Irish utility ESB for the deployment of Pelamis wave energy machines on the west coast of Ireland

October 03, 2014

liquid_3d_printing_process

Liquid phase 3D printing method introduced by Chinese researchers

Scientists at the Beijing Key Laboratory of CryoBiomedical Engineering, part of the Technical Institute of Physics and Chemistry at the Chinese Academy of Sciences, have developed a new conceptual liquid-phase 3D printing method with "ink" consisting of a meta

October 03, 2014

moons_art

MOONS to solve mysteries of how stars and galaxies evolve

A €9M contract was announced last week for UK-based engineers and designers to build MOONS (Multi-Object Optical and Near-infrared Spectrograph) that aims to tackle some of the most compelling astronomical puzzles – such as how stars and galaxies form and evo

October 02, 2014

7megacities_LA

NASA and partners target megacities' carbon emissions

As world leaders attended the UN Climate Summit 2014, NASA has joined others in an international initiative to monitor the greenhouse gas emissions of Earth's most populous cities.NASA recently launched Orbiting Carbon Observatory-2 (OCO-2) satellite which can detec

September 30, 2014

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Humanity's first attempt to soft-land on a comet scheduled for November 12, 2014

Launched on March 2, 2004, from Europe’s Spaceport in Kourou, French Guiana, ESA's comet chaser Rosetta is scheduled to deploy it's lander, Philae, to the surface of Comet 67P/Churyumov–Gerasimenko on November 12, 2014. This will be humanity's fi

September 30, 2014

iss 3

Turning International Space Station into a giant Earth observer

With the inclusion of six new Earth science instruments NASA wants to take the earth watching capability of ISS to a whole new level. The upgrading process started on September 20th when a SpaceX resupply rocket blasted off from Cape Canaveral carrying the first NASA Ea

September 29, 2014

calgary_flood_june_2013_servir

ISERV Viewer - New online tool for viewing images of Earth from ISS

A new user-friendly online resource interface - ISERV Viewer - with nearly two years of Earth images taken from a space station camera was recently released to the public. The interface is a world map that links to thousands of images made by the ISERV camera.ISERV (Int

September 27, 2014

maven_first_observation

MAVEN returns its first Mars observations

Just after arrival, NASA’s Mars Atmosphere and Volatile Evolution (MAVEN), the first spacecraft sent to explore the tenuous upper atmosphere of Mars, has started working on it's mission. Within 24 hours of being placed in the Red Planet's orbit, the spacec

September 26, 2014

Grand_Design_Spiral_Galaxy_M81

Monster black hole lurking inside one of the tiniest galaxies ever known

A supermassive blackhole has been found inside the tiniest galaxy ever found, the M60-UCD1, located about 54 million light years away from Earth. Researchers used NASA’s Hubble and the Gemini North 8-meter optical and infrared telescope on Hawaii to observe and

September 26, 2014

anomaly_in_satellite_flybys_f

An anomaly in satellites' flybys baffles scientists

Scientists have found anomalies in the speed of space probes such as Rosetta and Cassini, as they fly over certain planets, something they haven't been able to explain. Noticed for the first time during a careful inspection of DSN Doppler data shortly after the Eart

September 26, 2014