Showing 20 articles starting at article 481
< Previous 20 articles Next 20 articles >
Categories: Space: The Solar System
Published Balancing risk and reward in planetary exploration
(via sciencedaily.com) Original source Researchers have developed a new approach to balancing the risks and scientific value of sending planetary rovers into dangerous situations.
Published Ancient bacteria might lurk beneath Mars' surface
(via sciencedaily.com) Scientists found that ancient bacteria could survive close to the surface on Mars much longer than previously assumed. So, if life did, in fact, evolve when the last waters flowed on Mars, it would likely still be there today -- billions of years later.
Published Discovery could dramatically narrow search for space creatures
(via sciencedaily.com) An Earth-like planet orbiting an M dwarf -- the most common type of star in the universe -- appears to have no atmosphere at all. This discovery could cause a major shift in the search for life on other planets.
Published Looking to move to a galaxy far, far away? Innovative system evaluates habitability of distant planets
(via sciencedaily.com) The research framework developed, along with observational data from the Webb Space Telescope, will enable scientists to efficiently assess the atmospheres of many other planets without having to send a space crew to visit them physically. This will help us make informed decisions in the future about which planets are good candidates for human settlement and perhaps even to find life on those planets.
Published Scientists compile Cassini's unique observations of Saturn's rings
(via sciencedaily.com) Scientists have compiled 41 solar occultation observations of Saturn's rings from the Cassini mission. The compilation will inform future investigations of the particle size distribution and composition of Saturn's rings, key elements to understanding their formation and evolution.
Published NASA's Lucy to fly past thousands of objects for Earth gravity assist
(via sciencedaily.com) Mission engineers will track NASA's Lucy spacecraft nonstop as it prepares to swoop near Earth on Oct. 16 to use this planet's gravity to set itself on a course toward the Jupiter Trojan asteroids.
Published New abiotic pathway for the formation of oxygen
(via sciencedaily.com) Researchers have now found evidence that double ionised sulphur dioxide contribute to the formation of oxygen molecules. This could, in particular, explain the presence of oxygen in sulphur dioxide-rich atmospheres of several of Jupiter's moons.
Published Broccoli gas: A better way to find life in space
(via sciencedaily.com) Broccoli, along with many other plants and microorganisms, emit gases to help them expel toxins. Scientists believe these gases could provide compelling evidence of life on other planets.
Published Astronomers find a 'cataclysmic' pair of stars with the shortest orbit yet
(via sciencedaily.com) Astronomers have discovered a stellar binary, or pair of stars, with an extremely short orbit, appearing to circle each other every 51 minutes. The system seems to be one of a rare class of binaries known as a 'cataclysmic variable,' in which a star similar to our sun orbits tightly around a white dwarf -- a hot, dense core of a burned-out star.
Published Collision may have formed the Moon in mere hours, simulations reveal
(via sciencedaily.com) Most theories claim the Moon formed out of the debris of a collision between the Earth and an object about the size of Mars, called Theia, coalescing in orbit over months or years. A new simulation puts forth a different theory -- the Moon may have formed immediately, in a matter of hours, when material from the Earth and Theia was launched directly into orbit after the impact.
Published Exploring Jupiter's moon, Europa, possible with silicon-germanium transistor technology
(via sciencedaily.com) Europa is more than just one of Jupiter's many moons -- it's also one of most promising places in the solar system to look for extraterrestrial life. Under 10 kilometers of ice is a liquid water ocean that could sustain life. But with surface temperatures at -180 Celsius and with extreme levels of radiation, it's also one of the most inhospitable places in the solar system. Exploring Europa could be possible in the coming years thanks to new applications for silicon-germanium transistor technology research.
Published Potential first traces of the universe's earliest stars
(via sciencedaily.com) Original source Astronomers may have discovered the ancient chemical remains of the first stars to light up the Universe. Using an innovative analysis of a distant quasar observed by the 8.1-meter Gemini North telescope on Hawai'i, the scientists found an unusual ratio of elements that, they argue, could only come from the debris produced by the all-consuming explosion of a 300-solar-mass first-generation star.
Published Lunar glass shows Moon asteroid impacts mirrored on Earth
(via sciencedaily.com) A research team has found asteroid impacts on the Moon millions of years ago coincided precisely with some of the largest meteorite impacts on Earth, such as the one that wiped out the dinosaurs.
Published New evidence for liquid water beneath the south polar ice cap of Mars
(via sciencedaily.com) An international team of researchers has revealed new evidence for the possible existence of liquid water beneath the south polar ice cap of Mars.
Published Layering, not liquid: Astronomers explain Mars' watery reflections
(via sciencedaily.com) Astronomers believe bright reflections beneath the surface of Mars' South Pole are not necessarily evidence of liquid water, but instead geological layers.
Published Analysis of particles of the asteroid Ryugu delivers surprising results
(via sciencedaily.com) Original source In December 2020, a small landing capsule brought rock particles from the asteroid Ryugu to Earth -- material from the beginnings of our solar system. The Japanese space probe Hayabusa 2 had collected the samples. Geoscientists have now discovered areas with a massive accumulation of rare earths and unexpected structures.
Published New Webb image captures clearest view of Neptune's rings in decades
(via sciencedaily.com) NASA's James Webb Space Telescope shows off its capabilities closer to home with its first image of Neptune. Not only has Webb captured the clearest view of this distant planet's rings in more than 30 years, but its cameras reveal the ice giant in a whole new light.
Published Newly formed craters located on Mars
(via sciencedaily.com) An international team of researchers with NASA's InSight mission located four new craters created by impacts on the surface of Mars. Using data from a seismometer and visuals acquired from the Mars Reconnaissance Orbiter, the team successfully calculated and confirmed the impact locations. Researchers have now captured the dynamics of an impact on Mars.
Published Scientist helps identify new evidence for habitability in Enceladus's ocean
(via sciencedaily.com) The search for extraterrestrial life just got more interesting as a team of scientists has discovered new evidence for a key building block for life in the subsurface ocean of Saturn's moon Enceladus. New modeling indicates that Enceladus's ocean should be relatively rich in dissolved phosphorus, an essential ingredient for life.
Published Geologist proposes the number of ancient Martian lakes might have been dramatically underestimated by scientists
(via sciencedaily.com) Though Mars is a frozen desert today, scientists have shown that Mars contains evidence of ancient lakes that existed billions of years ago, which could contain evidence for ancient life and climate conditions on the red planet. Through a meta-analysis of years of satellite data that shows evidence for lakes on Mars, a geologist has proposed that scientists might have dramatically underestimated the number of ancient Martian lakes that once existed.