Science News

Google doodle wishes scientist Jagdish Chandra Bose on his 158th birth anniversary

Google doodle wishes scientist Jagdish Chandra Bose on his 158th birth anniversa

Washington D.C. [USA], Nov.30 : Google, on Wednesday, wished noted scientist Jagdish Chandra Bose on his 158th birth anniversary with a doodle featuring him.

The doodle featured Bose's caricature with crescograph, an instrument that he invented to measure growth in plants.

Best known for his pioneering work in biophysics, Bose made several contributions in various fields, including physics, biology and archaeology.

Can humans regenerate body parts like acorn worms?

Can humans regenerate body parts like acorn worms?

Washington D.C. [USA], Nov. 29 : Is it possible for humans to regrow an amputated arm or leg, or completely restore nervous system function after a spinal cord injury?

It might be possible one day, as a new study of one of our closest invertebrate relatives, the acorn worm, reveals that acorn worms can regrow every major body part, raising hopes for regeneration in humans.

Acorn worms burrow in the sand around coral reefs, but their ancestral relationship to chordates means they have a genetic makeup and body plan surprisingly similar to ours.

Humanoid robot reveals learning process in toddlers

Humanoid robot reveals learning process in toddlers

Washington D.C. [USA], Nov. 29 : A new research has found that toddlers learn new words using the same method as robots.

The study suggests that early learning is based not on conscious thought but on an automatic ability to associate objects which enables babies to quickly make sense of their environment.

Dr Katie Twomey from Lancaster University, with Dr Jessica Horst from Sussex University, Dr Anthony Morse and Professor Angelo Cangelosi from Plymouth wanted to find out how young children learn new words for the first time.

The researchers programmed a humanoid robot called iCub designed to have similar proportions to a three year old child, using simple software which enabled the robot to hear words through a microphone and see with a camera.

A century after their adventure, Antarctic heroes help make discovery

A century after their adventure, Antarctic heroes help make discovery

Washington D.C. [USA], Nov.24 : The research, which says area of sea ice around Antarctica has barely changed in size in a century, was contributed by the heroes of Antarctic exploration.

Ice observations recorded in the ships' logbooks of explorers such as British Captain Robert Scott and Ernest Shackleton and the German Erich von Drygalski have been used to compare where the Antarctic ice edge was during the Heroic Age of Antarctic Exploration (1897-1917) and where satellites show it is today.

The study suggests Antarctic sea ice is much less sensitive to the effects of climate change as compared to the Arctic, which in stark contrast has experienced a dramatic decline during the 20th century.

Hop on with frog's evolutionary movements

Hop on with frog's evolutionary movements

Washington D.C. [USA], Nov.24 : A new study, collecting genetic data by an international group of scientists, says that a common species of Asian tree frog may actually be two separate species.

If the two groups of frogs are confirmed to be different species, assigning their scientific names may require searching historical records of foreign explorers in Japan during the 1800s.

Before the frogs are officially recognised as two separate species, researchers will test if individual frogs from the two groups have unique physical or behavioral features and if they can produce healthy offspring.

Toxic amphibian defenses at higher risk of extinction

Toxic amphibian defenses at higher risk of extinction

Washington D.C. [USA], Nov. 23 : A recent study published in the journal Royal Society Open Science, found that amphibians which use poisonous defenses are more likely to get extinct than other species.

Research published by a Swansea University scientist has suggested amphibians which have a toxic defence against predators such as the iconic poison dart frogs have a much higher risk of extinction than species which use other types of defence mechanisms.

The key finding of Dr Kevin Arbuckle's latest study is that poisonous species are 60 percent more likely to be threatened than species without chemical defences.

Amphibians are usually considered the most threatened group of vertebrate animals and are experiencing population declines globally, raising conservation challenges.

Climate data rescue activities being undertaken in Australia

Washington D.C. [USA], Nov. 21 : A new research draws attention to recent data rescue efforts undertaken in Australia to study the climate and climate change, in the southern latitudes.

The article has been published in published in Advances in Atmospheric Science journal.

Long-term weather data is the backbone of almost all research into climate change and variability.

The recovery of historical instrumental data is a well-established practise in the Northern Hemisphere, where observations are available for the past several centuries in many regions.

In the Southern Hemisphere, the currently available set of climate observations generally only begin in the early to mid-20th century. This makes it harder to study the climate change.

ISRO's GSAT-18 satellite launched successfully from Kourou

Kourou(French Guiana) [US], Oct. 6 : India's latest communication satellite GSAT-18 was on Thursday morning successfully launched by a heavy duty rocket of Arianespace from the spaceport of Kourou in French Guiana.

The European launcher Ariane-5 VA-231 blasted off at around 2 a.m. Indian Time and injected GSAT-18 into a Geosynchronous Transfer Orbit, shortly after orbiting co-passenger Sky Muster II satellite for Australian operator, National Broadband Network.

The launch, which was originally scheduled for yesterday, was deferred by 24 hours due to unfavourable weather conditions at Kourou, which is a French territory located in north-eastern coast of South America.

Male sans the Y chromosome: a step towards better understanding sex differentiation

Washington D.C. [USA], Oct. 3 : Taking us a step ahead to understand sex differentiation, a recent study has revealed that key sex-determining genes continue to operate in a mammalian species that lacks the Y chromosome.

In most placental mammals, the Y chromosome induces male differentiation during development, whereas embryos without it become female.

The sex-determining gene SRY is present on the Y chromosome and induces other regulatory genes that suppress female differentiation. The Amami spiny rat (Tokudaia osimensis) is exceptional as it lacks a Y chromosome and thus the SRY gene, raising the question of why male differentiation can still occur.

Test-firing of Barak-8 missile to continue for second day

Bhubaneshwar (Odisha) [India], Sept. 21 : The test-fire of new long range surface-to-air ballistic missile Barak-8 will continue on the second day today from Integrated Test Range launch pad at Chandipur off Odisha coast.

The Indo-Israel joint venture missile is having multi-functional surveillance and threat alert radar was successfully test fired twice from the Range yesterday.

Earlier, this year Barak-8 was successfully test-fired twice on 30th June and once on July 1.

The 4.5-meter missile weighs around three tonnes and can carry a payload of 70 kilograms.

The system also includes a Multi-Functional Surveillance and Threat Alert Radar for detection, tracking and guidance of the missile. (ANI)

Poorer Countries vulnerable to Climate Change need Help to live in Warming World

Climate change will impact almost every region of the planet in the coming times and the impact can be seen in terms of unpredictable and inclement weather, which would impact crop yields. It is important for governments to be ready to combat these changes as there could be food scarcity and people in the coastal regions would face frequent flooding. Climate scientists found that nations around the world that are at high risk of catastrophic impacts of climate change are among the poorest.

Arthopods Protected Their Young ones, Just as Humans Do Today, 430 million years ago

Arthopods Protected Their Young ones, Just as Humans Do Today, 430 million years

Busting the notion that modern-day parents are the first ones to keep tabs on their children to safeguard them from potential dangers, a new study has claimed that the practice began as long as 430 million years ago.

Published Monday in the Proceedings of the National Academy of Sciences, the study described a tiny, resourceful arthropod creature, Aquilonifer spinosus, which devised a unique way for baby tracking. Aquilonifer spinosus tethered egg pouches to its back with threads and followed its juveniles as they grew, in a similar manner as if they were tiny kites. The aim was to keep the young ones tethered to the adult’s body with strings so as to keep them safe.

Astronauts begin training on Orion spacecraft to prepare for eventual trip to Mars

Astronauts have started training on Orion spacecraft for preparation of an eventual trip of transporting spacefarers to the Red Planet. The test crew wore spacesuits to properly test the vehicle and to check their own ability of interacting with control systems while attired in full gear.

The Orion spacecraft has been designed to be the next space delivery system of the US space agency that can lift human payloads to orbit, and outside our planet. The vehicle is the keystone of NASA’s quest of transporting people to Mars.

Newly discovered alien planet has three Suns in its sky

A recently found exoplanet using Kilodegree Extremely Little Telescope (KELT) has three Suns in its sky. Though scientists know a number of planets with two Suns, the case of a planet with three bright stars in its sky is uncommon.

The newly discovered far away world, called KELT-4Ab, orbits a single star, and that star in turn is orbited by a close pair of stars.

A new study has revealed that the twin stars are sufficiently close to the planet to look as bright as the sky’s full moon is.

Besides coming up as an example of a solar system quite distinct from our planet, the odd arrangement could shed some light over the evolution of gas giants present close to their parent star, called ‘hot Jupiters’.

Newly Found Viking Site in Canada Has Potential to Rewrite History

With the use of satellite imagery, archaeologists claim to have identified a site at Point Rosee in Newfoundland, Canada, that could probably be the first new Viking site discovered in North America in the past over five decades.

Archaeologists believe the newly discovered site has the potential to rewrite history, particularly the portion before the time of Christopher Columbus when Europeans explored North America.

Prior to this, it was in the 1960s that the only other Viking site in North America was found at L’Anse Aux Meadows on the northern tip of Newfoundland, about 300 miles from Point Rosee.

Ancient Arachnid Fossil may unveil Origin of Spiders

Ancient Arachnid Fossil may unveil Origin of Spiders

Researchers carefully examined a preserved fossil of an ‘almost spider’ to learn about the origin of spiders. The 305-million-year-old fossil was in Muséum National d'Histoire Naturelle in Paris. It was unearthed in the 1980s by a fossil hunter, Daniel Sotty, in the rock of Montceau-les-Mines.

Researchers were unable to analyze the fossil previously because a large part of it was buried in that ancient rock. Only the abdomen part of the fossil was visible.

Now, researchers have used modern technology to view the buried part of the fossil. They used high-resolution CT Scans and developed a three-dimensional model that demonstrates different traits of arachnid.

Here’s How China’s Falling Carbon Emissions can Pressurize Other Nations to Meet Their Goals

Here’s How China’s Falling Carbon Emissions can Pressurize Other Nations to Meet

Until now, China has been the leading emitter of harmful greenhouse gases in the world, and emissions of CO2 in the country have been rising year after year. More than a year ago, US negotiators asked the government of China to pledge to curb greenhouse gas emissions in the country within a deadline.

Under an agreement, the US government also announced to reverse the growth of dangerous gases that cause global warming. China also pledged to limit the greenhouse gas emissions by 2030. The deadline is far off, but capital Beijing’s concession is a big step in efforts to effectively manage climate change, as per environmentalists.

Scientists may have just snapped photos of alien Earth

Scientists may have just snapped photos of alien Earth

Scientists likely have captured pictures of an alien Earth at an early stage. The latest photographs, captured by the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, have revealed that the planet-forming disk surrounding a close by sun like star known as TW Hydrae has a gap at nearly the same distance from the star as that of between Earth and the sun.
In a statement, study lead author Sean Andrews, of the Harvard-Smithsonian Center for Astrophysics (CfA), said that earlier studies using optical and radio telescopes have confirmed that the star has a well known disk with features that clearly indicate that the planets could soon start forming.

Scientists reconstruct colors of an ancient snake while it was alive

Scientists reconstruct colors of an ancient snake while it was alive

Using a sophisticated scanning technology, scientists have found what might have been the colors of the skin of an ancient snake, discovered in a colorless fossil. Preserved as a fossil, the 10-million-year-old snake doesn’t have a head. It would have been green colored along with black or brown blotches, and pale on inside.

The study, which appeared on March 31 in the journal Current Biology, reported that the description is similar to some of the present day snakes that belong to the same family.

NASA’s Mars Rover Opportunity to climb Most Extreme Slope it ever encountered

NASA’s Mars Rover Opportunity to climb Most Extreme Slope it ever encountered

NASA’s Mars rover Opportunity has been exploring the Red Planet for more than a decade. Like a champion, it tackled all the difficulties that it faced during its journey on the planet. But now, the rover has got stuck on a hill. NASA officials and scientists in the project have made a bold decision to make the rover climb the hill.

As per NASA report, the rover got stuck when it was exploring the slopes of ‘Marathon Valley’. The region is in Meridiani Planum of Mars. NASA’s Jet Propulsion Laboratory announced that the Opportunity rover will attempt to climb the slope. It will be the most extreme slope the rover has faced in its more than a decade mission on the Red Planet.

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