Showing 20 articles starting at article 881
< Previous 20 articles Next 20 articles >
Categories: Environmental: Wildfires, Space: The Solar System
Published Lava tubes on Mars and the Moon are so wide they can host planetary bases



Subsurface cavities created by lava on Mars and the Moon could provide a shield against cosmic radiation, new research suggests.
Published Surprisingly dense exoplanet challenges planet formation theories


New detailed observations reveal a young exoplanet, orbiting a young star in the Hyades cluster, that is unusually dense for its size and age. Weighing in at 25 Earth-masses, and slightly smaller than Neptune, this exoplanet's existence is at odds with the predictions of leading planet formation theories.
Published The quiet Sun is much more active than we thought


For a long time, researchers have believed that there is not much of interest going on in the Sun during the passive period, therefore not worth studying. Now this assumption is showed to be false. This is the first time that astronomers are systematically studying the phenomena of the solar minimum.
Published Alaskan seismometers record the northern lights


An aurora sightseeing tour leader in Alaska, was lucky enough to photograph a 'eruption' of brilliant pink light in the night skies one night in February.
Published Hubble sees summertime on Saturn


Saturn is truly the lord of the rings in this latest snapshot from NASA's Hubble Space Telescope, taken on July 4, 2020, when the opulent giant world was 839 million miles from Earth. A new Saturn image was taken during summer in the planet's northern hemisphere.
Published Scientists discover volcanoes on Venus are still active


A new study identified 37 recently active volcanic structures on Venus. The study provides some of the best evidence yet that Venus is still a geologically active planet.
Published Higher concentration of metal in Moon's craters provides new insights to its origin



There has been considerable debate over how the Moon was formed. The popular hypothesis contends that the Moon was formed by a Mars-sized body colliding with Earth's upper crust which is poor in metals. But new research suggests the Moon's subsurface is more metal-rich than previously thought, providing new insights that could challenge our understanding of that process.
Published First exposed planetary core discovered allows glimpse inside other worlds


The surviving core of a gas giant has been discovered orbiting a distant star, offering an unprecedented glimpse into the interior of a planet.
Published Orb hidden in distant dust is 'infant' Neptune-size planet


The discovery could help astronomers understand how planets like Earth form and evolve.
Published Evidence supports 'hot start' scenario and early ocean formation on Pluto


A new study suggests that Pluto and other large Kuiper belt objects started out with liquid oceans which have been slowly freezing over time.
Published Speed of space storms key to protecting astronauts and satellites from radiation


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.
Published Atmospheric tidal waves maintain Venus' super-rotation


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.
Published What makes Saturn's atmosphere so hot


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.
Published Mysteries of Uranus' oddities explained


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.
Published Mercury's scorching daytime heat may help it make its own ice at caps


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.
Published Safety zone saves giant moons from fatal plunge


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.
Published What if mysterious 'cotton candy' planets actually sport rings?


Some of the extremely low-density, 'cotton candy like' exoplanets called super-puffs may actually have rings, according to new research.
Published Life on Titan cannot rely on cell membranes, according to computational simulations


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.
Published Examining ice giants of our solar system


NASA's James Webb Space Telescope will unlock secrets of the atmospheres of Uranus and Neptune.
Published Large exoplanet could have the right conditions for life


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.