Articles tagged "research"

theia and earth 2

Enormous chunks of alien planet Theia are buried beneath the Earth, research suggests

Scientists believe that around 4.5 billion years ago, a protoplanet called Theia collided with the Earth, sending debris into space that eventually formed the Moon. According to new research, the crash also likely left enormous chunks-- even millions of times larger...

April 11, 2021

el nino la nina

Study shows correlation between solar variability and El Nino-La Nina events

A new study shows a link between the end of solar cycles and a switch from El Nino to La Nina events in the Pacific Ocean, indicating that solar variability can trigger seasonal weather variability on Earth. If the connection holds up, it could improve the...

April 06, 2021

meteotsunami 2018 2

NOAA study takes step closer to predicting meteotsunamis

A new study by NOAA shows the promise of forecasting meteotsunamis after scientists were able to reconstruct the first documented meteotsunami in the Great Lakes in 2018. On April 13, 2018, a huge wave surged across Lake Michigan, flooding the shores of Ludington...

April 02, 2021

antarctica meteorite

Large meteoritic event over Antarctica 430 000 years ago

An international team of scientists has found new evidence that a low-altitude meteoritic event occurred over Antarctica 430 000 years ago. Cosmic particles recovered on the summit of Walnumfjellet indicate that an unusual touchdown event reached the continent's...

April 01, 2021

dark matter 04 01 2021 2

New model replaces dark energy theory with magnetic forces

It has been long believed that 70 percent of the universe is composed of dark energy, which makes it expand at an ever-increasing rate. However, a new model by researchers from the University of Copenhagen (UCPH) suggests that the expansion is due to a dark...

April 01, 2021

tropical storm in 2018 produced lowest temperature ever recorded on earth f

A tropical storm in 2018 produced the lowest temperature ever recorded on Earth

A tropical storm just south of the equator in the southwestern Pacific Ocean on December 29, 2018, produced an unprecedented temperature of -111.2 °C (161.96 K / -168.1 °F), the lowest recorded on Earth, according to a recent scientific research paper. The...

March 31, 2021

star formation 2

Hubble makes unexpected discovery on the process of star formation

New observations from the Hubble Space Telescope have changed our understanding of star formation as what scientists previously believed may have been an off-switch for the process does not work that way after all. The telescope shows that the powerful astrophysical...

March 29, 2021

shumagin gap alaska f

Unexpected strike-slip earthquake uncovers hidden mechanism

Researchers uncovered the reason for unexpected strike-slip earthquakes, where two pieces of crust slide past each other on a fault, in areas where subduction zone tremors are common. From July to October 2020, a series of earthquakes occurred in Shumagin Islands,...

March 27, 2021

angkor wat f

Study provides evidence of a magnetic field anomaly in Southeast Asia 800 years agojavascript:;

An international team of researchers has discovered evidence of a magnetic field anomaly in Southeast Asia roughly 800 years ago. The researchers conducted an archaeomagnetic study on an iron-smelting site from Cambodia, an area currently devoid of data. The results...

March 14, 2021

arase satellite 2

Research reveals unknown mechanisms that generate auroras

New research has revealed an unknown mechanism of the magnetosphere-- electrons from the Sun are propelled by electrical energy higher than previously thought, ultimately creating displays of northern and southern lights or auroras. The formation of auroras starts...

March 14, 2021

antarctica linked to gondwana 2

Scientists discover east Antarctica's magnetic link to its ancient neighbors in Gondwana

An international team of scientists was able to determine where Antarctica has been linked to its former neighbors in the supercontinent Gondwana. Using geology and satellites, the researchers discovered high-resolution details about the missing links between...

March 14, 2021

atacama deser

Importance of Rossby waves and atmospheric moisture transport for extreme precipitation events

A new study has presented for the first time a global and systematic climatological analysis of breaking waves and atmospheric moisture transport, in tandem and in isolation, for the occurrence of extreme precipitation events, which frequently cause catastrophic...

March 14, 2021

typhoon hagibis japan

Tropical cyclone landfall locations over the western North Pacific shifting in 100-year intervals

A team of scientists investigated tropical cyclone (TC) activity over the western North Pacific and landfalls in Japan by examining a combination of TC tracking and meteorological data, including recovered historical observations in the mid-19th century. The...

March 04, 2021

chile mountain tsunamis march 4 2021 2

Declining discharge of glacier outburst floods in Chilean Patagonia

Mountain 'tsunamis' or flooding due to the rupture of glacial lakes in Chilean Patagonia have been taking place cyclically since the last glacial maximum 10 000 years ago at a declining magnitude, according to a new study by researchers from the Centro...

March 04, 2021

space hurricane march 3 2021 2

First space hurricane discovered over the Earth’s polar ionosphere

Scientists have discovered a space hurricane above the North Pole for the first time, which offered an initial glimpse at a phenomenon that could also be taking place on other planets across the universe. The hurricane was raining electrons instead of water,...

March 03, 2021

utah volcanoes march 3 2021 3

Rare earthquakes highlight Black Rock Desert volcanic field in Utah

Rare earthquakes in the Black Rock Desert in Utah have provided a glimpse into the volcanic system of the field, which is still active despite not showing signs of erupting, according to a new study. A pair of earthquake sequences in September 2018 and April 2019,...

March 03, 2021

gulf stream earth march 1 2021 2

The Atlantic Meridional Overturning Circulation (AMOC) at its weakest in more than 1 000 years

The Atlantic Meridional Overturning Circulation (AMOC), one of the Earth’s major ocean circulation systems that underpins the Gulf Stream, is now at the weakest it has been in more than 1 000 years, a new study shows. Models suggest that this could trigger...

March 01, 2021

binary stars feb 24 2021 3

New map of solar neighborhood shows binary stars are all around us

The recent data from the Gaia space observatory has allowed astronomers, for the first time, to create a large 3D atlas of widely separated binary stars--1.3 million of them, within roughly 3 000 light-years of Earth. The atlas, generated by Ph.D. astrophysics...

February 25, 2021

mediterranean region

Researchers develop better forecasting of extreme rainfall events in Mediterranean countries

Researchers at the European Center for Medium-range Weather Forecasts and TU Freiberg developed a new framework to improve forecasting of extreme rainfall events in Mediterranean countries. The scientists noted that it was challenging to predict how many days in...

February 23, 2021

groundwater recharge africa feb 19 2021 2

Scientists develop first map of groundwater recharge rates across Africa

An international team of scientists published a new study providing the first-ever map of the groundwater recharge rates across Africa based on ground measurements. The study shows data about where groundwater exists and the rate at which groundwater is replenished,...

February 20, 2021

earth magnetic pole

Study: Earth's magnetic reversal in combination with Grand Solar Minimum 42 000 years ago caused sudden, massive climate change

Around 42 000 years ago, the Earth's magnetic fields reversed, triggering sudden, major climate change, extinction events, and long-term changes in human behavior, a new study shows. Authors said they have precisely characterized the geomagnetic reversal and...

February 19, 2021

black holes ngc 6397 f

Hubble discovers concentration of small black holes at the heart of globular cluster NGC 6397

Astronomers on the hunt for an intermediate-mass black hole at the heart of the globular cluster NGC 6397, found something they weren’t expecting -- a concentration of smaller black holes lurking there instead of one massive black hole. Image credits: NASA,...

February 11, 2021

seismic echoes feb 1 2021 2

Geophysicists detect widespread structures near the Earth's core

Geophysicists from the University of Maryland made the first analysis of seismic echoes from hundreds of earthquakes at once, unveiling more widespread, heterogenous structures at the core-mantle boundary than previously known. Past studies were limited to single...

February 01, 2021

CME 2002 3

Researchers investigate what happens if 'perfect solar storm' hits Earth

In a new study published in Space Weather journal, researchers investigated what might happen if a 'perfect' coronal mass ejection (CME) hit the Earth. Using state‐of‐the‐art computer models to simulate the worst-case solar storm, the team found that...

January 28, 2021

solar activity over the past 1000 years ethz f

Researchers reconstruct 11-year solar cycles all the way back to year 969

An international team of researchers reconstructed the Sun's 11-year cycles all the way back to year 969 using measurements of radioactive carbon in tree rings. The findings help scientists better understand the dynamics of the Sun, enabling more accurate dating...

January 22, 2021

alaska volcanoes dec 10 2020

Six Alaskan volcanoes may be part of one massive supervolcano

Six stratovolcanoes comprising the Islands of Four Mountains in Alaska's central Aleutian Islands may not be separate volcanoes, but instead a part of one enormous volcanic caldera system, according to scientists who presented the evidence at the American...

December 10, 2020

position and velocity map of the milky way galaxy

New map of Milky Way Galaxy shows Earth is 7 km/s faster and 2 000 LY closer to the galactic center

Earth just got 7 km/s faster and about 2 000 light-years closer to the hypothesized supermassive black hole in the center of the Milky Way Galaxy, according to results of a new and better model of the galaxy based on new observation data, including a catalog of...

November 28, 2020

lightning nov 26 2020

Scientists find 'superbolts' flashing 1 000 brighter than normal lightning

Two new studies show that the brightest lightning events on Earth called "superbolts" can be more than 1 000 times brighter than normal lightning flashes. The findings could help scientists understand these mysterious flashes better, improving safety...

November 27, 2020

STEVE nov 26 2020 5

Citizen scientists discover new, mysterious feature of aurora-like phenomenon STEVE

Citizen scientists have discovered that the aurora-like phenomenon called STEVE or Strong Thermal Emission Velocity Enhancement has a new feature-- small, green fence-like lights streaking through the atmosphere at 1 600 km/h (1 000 mph). STEVE is also a discovery...

November 26, 2020

mars water concept nasa

Research suggests water is naturally occurring on all rocky planets

A new study published recently in Science Advances suggests that water may be naturally occurring on planets and does not require an external source like water-rich asteroids. The study turns the current theory about the emergence of water upside down. The research...

November 11, 2020

Screenshot_ _04_11_2020_,_7_31_38_PM

New technology detects long-hidden earthquakes

Scientists at the Stanford School of Earth, Energy, and Environmental Sciences described a new method for using artificial intelligence to detect millions of long-hidden small earthquakes or microquakes, providing possible hints about how earthquakes evolve. Big...

November 04, 2020

full sequence Matuyama–Brunhes geomagnetic reversal

Most detailed and complete record yet of Earth's last magnetic reversal

A team of researchers from Japan made the most detailed and complete record to date of Earth's last magnetic reversal that took place about 773 000 years ago. Their results were published recently in the Progress in Earth and Planetary Science, a Springer...

November 02, 2020

earthquake oct 19 2020

New insights show factors that trigger earthquakes

A new study by François Xavier Passelegue, a scientist at ENAC's Laboratory of Experimental Rock Mechanics (LEMR), has provided new insights into the origins of earthquakes, showing that the speed and intensity with which seismic waves cultivate after a...

October 26, 2020

tibet oct 16 2020 2

New seismic research explains continental collision beneath Tibet

New seismic data collected by scientists at Stanford University and the Chinese Academy of Geological Sciences suggests that two competing processes are simultaneously operating beneath a collision zone in Tibet. This research contributes to an ongoing debate over...

October 17, 2020

ilopango caldera panoramic

Multifaceted study dates massive Tierra Blanca Joven eruption to 431 CE

It has been known that a major volcanic eruption shocked the Maya civilization, but the disaster's precise date and nature were unidentified. In a new study, an international team of archaeologists confirmed that the civilization was rocked by the Tierra Blanca...

October 04, 2020

9solar storms oct 1 2020 2

Solar storms more severe when two events 'slipstream' behind each other

A research team led by Imperial College London has presented in a new study that Coronal Mass Ejections (CMEs) or solar storms could be more extreme than previously believed when they "slipstream" each other or when two such events follow each other....

October 04, 2020

distribution of long period comets f

Study identifies second alignment plane of solar system

According to a new study published in The Astronomical Journal, comet motions indicate that the solar system has a second alignment plane. The discovery has significant implications for models of how comets originally formed in the solar system. The study, led by...

September 29, 2020

south pole jupiter

Researchers solve mysterious storm patterns on Jupiter's south pole

Since first spotted by NASA's Juno space probe in 2019, a collection of swirling storms arranged in an unusually geometric pattern has been a mystery to most scientists. A new study may have uncovered how the strange weather forms and why the storms behave...

September 29, 2020

ef4 alabama tornado damage featured image

Migrating tornadoes found to be more dangerous and deadlier in the Southeast, U.S.

Migrating tornadoes that are increasingly occurring in the southeastern United States have been found to be more dangerous and twice as deadly as twisters elsewhere in the country, according to an analysis by the Environment & Energy Publishing (E&E News). A...

September 29, 2020

cyclone fani 2019 3

Increase in frequency of severe cyclones over the North Indian Ocean

From 1981 to 2017, statistics show that an average of five cyclones developed over the North Indian Ocean per year. However, recent studies indicate that there has been an increase in the frequency of cyclone formation from 2017 to 2019. As a result, there was also...

September 29, 2020