Articles tagged "research"

structure of the earth ft img march 14 2020

Earth's early magnetic field may have been produced by its mantle, not core

A new study published in Earth and Planetary Science letters supports the concept that the Earth's early magnetic field was generated by its mantle, not its core. A new study conducted by researchers Dave Stegman, Leah Ziegler, and Nicolas Blanc provided more...

March 15, 2020

ice age march 14 2020 research ft img

Study reveals ice ages over the last million years ended when the tilt angle of the Earth's axis was approaching higher values

A new study published recently in Science reveals that ice ages over the last million years ended when the tilt angle of the Earth's axis was approaching higher values. During these periods, longer and more intense summers caused the huge ice sheets to melt in...

March 15, 2020

dhaba site excavatinos march 14 2020

Evidence shows humans in northern India survived Mount Toba supervolcano eruption 74 000 years ago

Archaeologists discovered evidence suggesting that humans in India have survived the catastrophic Toba supervolcano eruption in Indonesia 74 000 years ago. After studying stone tools unearthed in northern India, researchers found a continuous occupation, showing...

March 15, 2020

late cretaceous era ft img for march 14 2020 report

Study reveals Earth days were half an hour shorter, years lasted 372 days 70 million years ago

A study of an ancient fossil mollusk shell from the Late Cretaceous revealed that the Earth had days half an hour shorter 70 million years ago. The planet rotated 372 times per year during that period, compared to the 365 to 366 days in the present. The prehistoric...

March 15, 2020

planets march 14 2020

Nearly 140 new minor planets discovered in the outer solar system

Researchers identified almost 140 new minor planets in the outer solar system after searching through information collected by the Dark Energy Survey (DES)-- a project investigating the dynamics of the expansion of the universe through mapping the southern sky. DES...

March 15, 2020

budj bim march 12 2020

Aboriginal myth of volcanic eruption at Budj Bim 37 000 years ago based on real geological event

According to a myth told by the Aborigines of southeastern Australia passed down for generations for 37 000 years now, an ancestral-creator being transformed into a volcano now known as Mount Eccles or the extinct Budj Bim. New scientific evidence indicates that...

March 12, 2020

brown star concept march 11 2020

Astronomers accidentally discover rare eclipse of two brown dwarfs

An international team of astronomers searching for potentially habitable alien planets made an accidental discovery of two brown dwarfs eclipsing each other. The astronomers were working on a project called the Search for habitable Planets EClipsing ULtra-cOOl Stars...

March 11, 2020

earth and moon march 12 2020

Study reveals Earth and Moon aren't made of same stuff, challenging prevailing theory of how the Moon formed

A new study conducted by scientists at the University of New Mexico (UNM) revealed that the Earth and Moon have different oxygen isotopes compositions and are therefore not identical in oxygen as previously believed. Researchers said the findings challenge present...

March 11, 2020

new type of pulsating star

Amateur astronomers discover new type of rare, pulsating star

An unusual tear-drop shaped star that only pulsates on one side has been discovered by amateur astronomers, who saw the anomaly in data taken by NASA's Transiting Exoplanet Survey Satellite (TESS). It is reportedly the first of its kind, and scientists are...

March 09, 2020

abu hureyra location

Researchers find more evidence of catastrophic cosmic impact 12 800 years ago

A group of researchers discovered more evidence of a catastrophic cosmic impact around 12 800 years ago that possibly caused the total destruction of Abu Hureyra in Syria. The site is believed to be one of the first towns on Earth where hunter-gatherers and nomads...

March 09, 2020

amazon wildfires 2019 esa f

Amazon's 2019 burned area trends similar to past 18 years

A detailed study using information from the European Space Agency's (ESA) Climate Change Initiative (CCI) revealed that while there was a small increase of fires in the Amazon in 2019 compared to 2018; the blazes parallel the average yearly number over the...

March 09, 2020

moon farside yutu2 underground f

China's lunar rover reveals underground secrets of the Moon's farside

A new study conducted by a research team at the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) has revealed new secrets below the surface of the Moon's farside through the spacecraft Chang'E-4 and its rover Yutu-2....

March 01, 2020

how to deflect an asteroid feb 18 2020

MIT presents framework for planning and assessing multi-spacecraft asteroid deflection campaigns

Researchers from the Massachusetts Institute of Technology (MIT) have developed a system that could identify the best possible method to deflect an asteroid long before the situation becomes worse. The team, led by former MIT graduate student Sung Wook Paek...

February 27, 2020

tohoku earthquake and tsunami 2011 ft img

Researchers use gravity signals to improve earthquake early warning systems

Researchers have proposed a new algorithm that can describe a gravitational signal caused by earthquakes with great accuracy. The procedure could help in improving early warning systems for earthquakes or tsunamis in the future. Earthquakes send out signals that...

February 26, 2020

hurricane harvey aug 25 201 ft img feb 20 2020

Hurricane "Harvey" tops list of decade's most extreme U.S. weather events

2017 Hurricane "Harvey" ranks first on the top 10 most extreme weather events in the U.S. this decade, according to new research published in journal Weatherwise. Coming in second is 2012 'Frankenstorm' Hurricane "Sandy," followed by...

February 23, 2020

meteor ft img feb 20 2020

Study suggests some meteors could be traveling near the speed of light when they enter Earth's atmosphere

A new study by Harvard astronomers suggests there could be small meteors (1 to 100 mm / 0.04 to 4 inches) traveling at close to the speed of light when they hit the Earth's atmosphere. Such meteors are likely the result of nearby supernovae that speed up...

February 23, 2020

tungurahua sentinel 2 feb 11 2020

Satellites detect very rapid deformation of Tungurahua's west flank, possibly leading to a colossal landslide, Ecuador

Ecuadorian Tungurahua volcano, one of South America's most prominent volcanoes, is showing early warning signs of potential flank collapse, a new research paper published in Science Direct suggests. A previous eruption of Tungurahua, around 3 000 years ago,...

February 19, 2020

zealandia continent pd f

Research voyage reveals formation of Earth's hidden continent Zealandia

Newly published evidence reveals that Earth's hidden continent Zealandia-- which stretches across 5 million km2 (2 million mi2) beneath the southwest Pacific Ocean-- was shaped by two tectonic events. First, it was ripped away from Australia and Antarctica and...

February 18, 2020

titan moon ft img feb 17 2020

Galactic cosmic rays affect atmosphere of Saturn's moon Titan, research finds

A team of Japanese researchers-- using data from the Atacama Large Millimeter/submillimeter Array (ALMA)-- discovered that galactic cosmic rays affect the chemical reactions involved in the formation of organic molecules bearing nitrogen on the atmosphere of...

February 18, 2020

quantum internet ft img feb 14 2020

Scientists entangle quantum memories over 50 km (31 miles), bringing super-secure quantum internet closer to reality

Scientists were able to get two quantum memories entangled over 50 km (31 miles) of fiber optic cables-- over 40 times the past record-- bringing the idea of faster and super-secure quantum internet more possible. Quantum communication depends on quantum...

February 17, 2020

most detailed photo of Sun jan 30 2020

World's largest telescope takes most detailed image of Sun

The Daniel K. Inouye Solar Telescope (DKIST)-- the world's largest solar telescope built on Haleakala, Hawaii-- took its first image of the Sun with the highest-resolution to date, revealing small magnetic structures in astonishing detail. Scientists are hopeful...

January 30, 2020

trench pakarae river north island nz

New fault system off Gisborne sheds light on East Coast tsunami and earthquake risks, New Zealand

A newly-found complex fault system north of Gisborne, New Zealand, may shed new light on the threats of earthquakes and tsunami in the region, according to a study led by GNS Science. Dr. Nicola Litchfield, the lead author, suggests that distinctive marine terraces...

January 30, 2020

nasa kepler vampire star jan 28 2020 ft img

Kepler spots a 'vampire' star system going through super-outburst

A new search of NASA's Kepler space telescope archive has uncovered a vampire star system undergoing super-outburst. Crafted to search for exoplanets, the spacecraft sometimes spots other objects that brighten or dim. The newly-discovered star system consists of...

January 30, 2020

map of galactic plane indicating highest gamma ray sources jan 22 2020

Cosmic gamma-ray source map unveils origins of high-energy particles

The galactic sources of nine extremely high-energy gamma rays have been identified by scientists from Penn State and members of the High-Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory. All of the sources generate gamma rays with powers more than 56 trillion...

January 23, 2020

nankai trough japan

Shallow slow slip events detected along Nankai Trough, Japan

Researchers have discovered signals due to slow slip events with huge amounts of slip along the Nankai Trough subduction zone, southeast of Japan. The findings shed light on the marine sedimentary environment and plate tectonics of Nankai Trough and may help in...

January 16, 2020

jupiter trojan asteroid nasa jpl

Jupiter a 'sniper' flinging dangerous objects toward Earth, study

Some scientists theorize that Jupiter acts like a giant space shield-- due to its tremendous mass, it sucks in or deflects dangerous space objects. However, studies led by American planetary physicist Kevin Grazier demonstrate that the planet is actually a threat...

January 11, 2020

impact crater years ago found jan 2020 ft img

Researchers discover crater from largest known asteroid to ever hit Earth

A newly published research suggests the crater left behind by the biggest asteroid to ever hit Earth has been found. Traces of the gigantic impact of the meteorite, which crashed on the planet approximately 790 000 years ago, have been observed across around 20% of...

January 08, 2020

mars first fault zone jan 2020

First active fault zone spotted on Mars

Scientists were able to find the first active fault zone yet on Mars after NASA's InSight mission spacecraft detected marsquakes, with two standing out loud and clear. These events registered between M3 and 4-- both were from an area called Cerberus Fossae-- a...

January 08, 2020

mayotte

Enormous underwater eruption that almost went unnoticed -- formation of a huge new volcano near Mayotte

A new underwater volcano formed near the island of Mayotte in the Indian Ocean in 2018, which was confirmed in May 2019. Now, an international team of scientists is unraveling the dramatic events that led to its creation. It is the deepest and largest magma...

January 07, 2020

quantum particle immortal ft img

Researchers find proof quantum particles can be virtually immortal

Researchers found that quasiparticles in quantum systems could be effectively immortal, as detailed in their study published in Nature Physics. These quantum particles, however, still decay but once they do, they are able to rebuild themselves back into existence--...

January 07, 2020

nasa intern discovers new type of aurora

New type of aurora discovered

NASA intern Jennifer Briggs, a physics student at Pepperdine University in California, discovered a new type of aurora in three-year-old footage of the Arctic Sky. Scientists were able to correlate the never-before-seen aurora to a sudden compression in Earth's...

January 05, 2020

drought ft img

Ancient tree rings reveal past megadroughts hit North and South America simultaneously

Scientists have suspected for many years that decades-long droughts occurred in North and South America simultaneously during the Middle Ages. By studying ancient tree rings, pieces of evidence have been discovered that tandem droughts are common over the past 1 200...

January 04, 2020

india deccan traps dec 28 2019

Deccan Traps volcanism had long-lasting climate, ecological impacts

Massive volcanic eruptions in India's Deccan Traps had climatic and ecological impacts that were global, long-lasting, and profound, according to a study by researchers from the University of Michigan (UM) in the US. Deccan Traps are known to have contributed to...

December 28, 2019

mass extinctions natgeo 2019

Study suggests current loss of species should be called the 'seventh extinction'

The biodiversity crisis we experience today-- defined by the rapid loss of species and rapid degradation of ecosystems-- is believed to be the sixth mass extinction. However, some scientists say it should perhaps be called seventh, suggesting the inclusion of the...

December 23, 2019

subx model featuredimg

SubX: Researchers present project that can significantly improve monthly weather forecasts

A critical gap in the weather forecast system is being filled through the Sub-seasonal Experiment or SubX project which aims to provide improved forecasts to the National Weather Service (NWS). Scientists working on the next frontier of weather forecasting said they...

December 20, 2019

ryugu impact craters

Impact crater analysis of Ryugu reveals the asteroid's geological history

Analysis of the impact craters on the asteroid Ryugu using Hayabusa 2's remote sensing image data has revealed the geological history of the near-Earth object. The research team, led by assistant professor Naoyuki Hirata of the Department of Planetology at Kobe...

December 20, 2019

year of darkness 536 AD_002

Undersea volcanism as the cause of 'year of darkness' and upheaval period from 536 - 555 A.D.

Researchers presented underwater volcanism as a new interpretation of why the sky mysteriously went dark for over a year beginning 536 A.D., with some parts of Europe and Asia seeing the Sun for only about four hours a day and accounts saying the Sun gave no more...

December 19, 2019

a new kind of explosion on the Sun dec 17 2019

Solar Dynamics Observatory witnesses new kind of magnetic explosion on the Sun

NASA's legendary Solar Dynamics Observatory (SDO) has observed a new type of explosion on the Sun. Called "forced reconnection," this newly-discovered phenomenon was theorized 15 years ago. The discovery is expected to help scientists understand a...

December 18, 2019

milky way eruption 1 billion years ago

Milky Way image reveals gigantic eruption 1 billion years ago

A groundbreaking survey of more than 700 000 stars near the Milky Way's heart has produced one of the most stunning images of our galaxy-- astronomers studying the huge population of stars in the "nuclear disk" theorize that there were two significant...

December 18, 2019

mysterious holes discovered off California coast

Thousands of mysterious seafloor holes found off California coast

Scientists have discovered thousands of mysterious holes in the seabed off Big Sur, California. Researchers from the Monterey Bay Aquarium Research Institute (MBARI) were surveying the deep seafloor off Big Sur when they found the strange holes. The bigger holes...

December 15, 2019