Articles tagged "evergreen"

diffuse auroral eraser new type of aurora research f

Decades-old video footage reveals new type of aurora - Diffuse Auroral Eraser

Decades-old video footage has shown a never-before-seen aurora, which scientists at the University of Iowa called the Diffuse Auroral Eraser. This elusive type of aurora first appears as a brighter stripe within a fainter, more diffused aurora. When the stripe...

May 16, 2021

lightning 2

Observations reveal lightning as the source of extreme air-cleaning oxidants

Observations from NASA's storm-chasing aircraft DC-8 reveal that lightning can produce extremely high concentrations of two major oxidants that help clear the air and the atmosphere. In May and June 2012, the DC-8 jet flew through the eye of thunderstorms over...

May 01, 2021

alaska volcanic eruption 2009

Detecting significant thermal unrest years before volcanic eruption

Scientists at NASA’s Jet Propulsion Laboratory (JPL) and the University of Alaska (UA) have developed a new method that may lead to earlier predictions of volcanic eruptions. There are telltale warning signs that a volcano is likely to erupt in the future,...

April 14, 2021

cosmic rays

Peter Mungo Jupp: The Black Death and Cosmic Chaos

Archaeologist and Thunderbolts colleague Peter Mungo Jupp presents a radical idea that civilization-destroying plagues may be governed by electromagnetism such as cosmic rays. Nature often uses triggers based on hard to pinpoint factors when losing its newest...

April 14, 2021

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Study reveals anomaly in pre-seismic atmospheric radon associated with inland earthquakes

Previous studies have shown elevated levels of radon in the atmosphere prior to the mainshock of a huge inland earthquake. However, in a new study, researchers revealed an anomaly in this phenomenon as they found that the concentration of the radioactive element...

April 13, 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

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

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

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

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

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

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

solar flare 2 july 15 2020 3

Study finds correlation between solar activity and large earthquakes worldwide

A new study published in the Nature Scientific Reports on July 13 suggests that powerful eruptions on the Sun can trigger large earthquakes on Earth. In the paper, the authors analyzed 20 years of proton density and velocity data, as recorded by the SOHO satellite,...

July 16, 2020

surface rupture ridgecrest

Scientists find 'domino-like' sequence of ruptures in Ridgecrest Earthquake Sequence, California

A new study of the Ridgecrest Earthquake Sequence, the largest earthquake sequence in Southern California, that began on July 4, 2019, provided new evidence that massive earthquakes can happen in a more complex fashion than commonly expected. The observation by...

October 20, 2019

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Study links big earthquakes to Earth-Moon-Sun alignments

In a new study published in Nature Geoscience yesterday, Japanese researchers have found that many of the largest earthquakes occurred near the time of maximum tidal strain — or during new and full moons when the Sun, Moon, and Earth align. The possibility...

September 13, 2016

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Earth's magnetic field showing signs of significant weakening

​The first set of high-resolution results from ESA’s three-satellite Swarm constellation reveals the most recent changes in the magnetic field that protects us from cosmic radiation and charged particles that bombard Earth. Magnetic field is in a permanent...

June 19, 2014