Showing 20 articles starting at article 761

< Previous 20 articles        Next 20 articles >

Categories: Geoscience: Geomagnetic Storms, Space: The Solar System

Return to the site home page

     (via sciencedaily.com) 

The discovery could help astronomers understand how planets like Earth form and evolve.

     (via sciencedaily.com) 

A new study suggests that Pluto and other large Kuiper belt objects started out with liquid oceans which have been slowly freezing over time.

     (via sciencedaily.com) 

Extreme space weather events can significantly impact systems such as satellites, communications systems, power distribution and aviation. They are driven by solar activity which is known to have an irregular but roughly 11 year cycle. By devising a new, regular 'sun clock', researchers have found that the switch on and off of periods of high solar activity is quite sharp, and are able to determine the switch on-off times.

     (via sciencedaily.com) 

Measuring the speed of coronal mass ejections (CMEs) as they erupt from the sun, in addition to their size, found to be crucial in providing accurate early warnings that keep astronauts and technology safe.

     (via sciencedaily.com) 

Scientists have reproduced a process that occurs in space to deepen understanding of what happens when the Earth encounters the solar wind.

     (via sciencedaily.com) 

On May 29, 2020, a family of sunspots -- dark spots that freckle the face of the Sun, representing areas of complex magnetic fields -- sported the biggest solar flare since October 2017. Although the sunspots are not yet visible (they will soon rotate into view over the left limb of the Sun), NASA spacecraft spotted the flares high above them.

     (via sciencedaily.com) 

An international research team has revealed that the 'super-rotation' on Venus is maintained near the equator by atmospheric tidal waves formed from solar heating on the planet's dayside and cooling on its nightside.

     (via sciencedaily.com) 

New analysis of data from NASA's Cassini spacecraft found that electric currents, triggered by interactions between solar winds and charged particles from Saturn's moons, spark the auroras and heat the planet's upper atmosphere.

     (via sciencedaily.com) 

Uranus is a planetary oddity. Our Solar System's planets revolve around the Sun in the same direction, and do so with their axes of rotation - the way they spin locally - orientated roughly perpendicular to their orbits. Uranus, however, is uniquely tipped over, with its axis almost parallel to its orbit. Uranus' moons and rings are also orientated this way, suggesting they formed during a cataclysmic impact that tipped it over early in its history.

     (via sciencedaily.com) 

Despite Mercury's 400-degree Celsius daytime heat, there is ice at its caps. And now a study shows how that Vulcan scorch probably helps the planet closest to the sun make some of that ice.

     (via sciencedaily.com) 

Numerical simulations showed that the temperature gradient in the disk of gas around a young gas giant planet could play a critical role in the development of a satellite system dominated by a single large moon, similar to Titan around Saturn. Researchers found that dust in the circumplanetary disk can create a 'safety zone,' which keeps the moon from falling into the planet as the system evolves.

     (via sciencedaily.com) 

Some of the extremely low-density, 'cotton candy like' exoplanets called super-puffs may actually have rings, according to new research.

     (via sciencedaily.com) 

Researchers have made a new contribution to the ongoing search into the possibility of life on Titan, Saturn's largest moon. Using quantum mechanical calculations, they have shown that azotosomes, a proposed alternative to cell membranes, could not form under the conditions there.

     (via sciencedaily.com) 

NASA's James Webb Space Telescope will unlock secrets of the atmospheres of Uranus and Neptune.

     (via sciencedaily.com) 

Astronomers have found an exoplanet more than twice the size of Earth to be potentially habitable, opening the search for life to planets significantly larger than Earth but smaller than Neptune.

     (via sciencedaily.com) 

A new study offers some of the first evidence that gray whales might depend on a magnetic sense to find their way through the ocean. This evidence comes from the discovery that whales are more likely to strand themselves on days when solar storms disrupt Earth's magnetic field.

     (via sciencedaily.com) 

Planetary scientists have revealed the secrets of the atmosphere of Titan, the largest moon of Saturn. The team found a chemical footprint in Titan's atmosphere indicating that cosmic rays coming from outside the Solar System affect the chemical reactions involved in the formation of nitrogen-bearing organic molecules. This is the first observational confirmation of such processes, and impacts the understanding of the intriguing environment of Titan.

     (via sciencedaily.com) 

A 'beating heart' of frozen nitrogen controls Pluto's winds and may give rise to features on its surface, according to a new study.

     (via sciencedaily.com) 

What if solar cells worked at night? That's no joke. In fact, a specially designed photovoltaic cell could generate up to 50 watts of power per square meter under ideal conditions at night, about a quarter of what a conventional solar panel can generate in daytime, according to a recent concept article.

     (via sciencedaily.com) 

A 'great' space weather super-storm large enough to cause significant disruption to our electronic and networked systems occurred on average once in every 25 years according to a new study.