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Categories: Space: The Solar System
Published Researchers enlist robot swarms to mine lunar resources
(via sciencedaily.com) Building a base on the moon was once something out of science fiction, but now scientists are starting to consider it more seriously. Researchers are investigating methods for mining lunar resources to build such a base, using swarms of autonomous robots.
Published Risk from solar flares to planes is real but not worth costly mitigation
(via sciencedaily.com) Aviation guidelines aim to mitigate the effects of radiation, mainly caused by galactic cosmic rays and solar energetic particles, or SEP. The fluxes in the former are stable and predictable: dose rates are no higher than 10 µSv/h at the normal flight altitude of 12 km. But in the case of SEP, does the frequency of detected solar flares justify the costs of countermeasures? Current mitigation procedures instruct planes to lower altitude or change or cancel flight paths altogether, significantly raising expenses.
Published Will it be safe for humans to fly to Mars?
(via sciencedaily.com) A human space mission would be viable if it doesn't exceed four years, an international research team concludes in new research.
Published Here comes the Sun: Planetary scientists find evidence of solar-driven change on the Moon
(via sciencedaily.com) A new study uncovered important clues to help understand the surprisingly active lunar surface. The scientists found that solar radiation could be a more important source of lunar iron nanoparticles than previously thought.
Published Fast changes between the solar seasons resolved by new sun clock
(via sciencedaily.com) Violent activity on our Sun leads to some of the most extreme space weather events on Earth, impacting systems such as satellites, communications systems, power distribution and aviation. The roughly 11 year cycle of solar activity has three 'seasons', each of which affects the space weather felt at Earth differently: (i) solar maximum, the sun is active and disordered, when space weather is stormy and events are irregular (ii) the declining phase, when the sun and solar wind becomes ordered, and space weather is more moderate and (iii) solar minimum, when activity is quiet. Scientists found that the change from solar maximum to the declining phase is fast, happening within a few (27 day) solar rotations.
Published Magnetic patterns hidden in meteorites reveal early Solar System dynamics
(via sciencedaily.com) Researchers have developed a novel technique to investigate the dynamics of the early Solar System by analyzing magnetites in meteorites utilizing the wave nature of electrons.
Published Dragonfly mission to Titan announces big science goals
(via sciencedaily.com) The NASA Dragonfly mission will send a rotorcraft relocatable lander to the surface of Saturn's moon Titan in the mid-2030s; it will be the first mission to explore the surface of Titan.
Published Small stars share similar dynamics to our sun, key to planet habitability
(via sciencedaily.com) Scientists show that 'cool' stars like the sun share dynamic surface behaviors that influence their energetic and magnetic environments. Stellar magnetic activity is key to whether a given star can host planets that support life.
Published Lunar samples solve mystery of the moon's supposed magnetic shield
(via sciencedaily.com) Tests of glass samples gathered on Apollo missions show magnetization may result from impacts of objects like meteors, not as a result of magnetization from the presence of a magnetic shield.
Published Solving solar puzzle could help save Earth from planet-wide blackouts
(via sciencedaily.com) Understanding the Sun's magnetic dynamo could help predict solar weather, such as potentially dangerous geothermal storms, solar flares and sunspots. Mathematicians have proposed a new model of the Sun that matches observed data.
Published Space scientists reveal secret behind Jupiter's 'energy crisis'
(via sciencedaily.com) New research has revealed the solution to Jupiter's 'energy crisis', which has puzzled astronomers for decades. Astronomers have created a detailed global map of the gas giant's upper atmosphere, confirming that Jupiter's powerful aurorae are responsible for delivering planet-wide heating.
Published Nearby star resembles ours in its youth
(via sciencedaily.com) New research provides a closer look at a nearby star thought to resemble our young Sun. The work allows scientists to better understand what our Sun may have been like when it was young, and how it may have shaped the atmosphere of our planet and the development of life on Earth.
Published Magnetic fields implicated in the mysterious midlife crisis of stars
(via sciencedaily.com) Middle-aged stars can experience their own kind of midlife crisis, experiencing dramatic breaks in their activity and rotation rates at about the same age as our Sun, according to new research. The study provides a new theoretical underpinning for the unexplained breakdown of established techniques for measuring ages of stars past their middle age, and the transition of solar-like stars to a magnetically inactive future.
Published Hubble finds evidence of water vapor at Jupiter's moon Ganymede
(via sciencedaily.com) Astronomers have uncovered evidence of water vapor in the atmosphere of Jupiter's moon Ganymede. This water vapor forms when ice from the moon's surface sublimates -- that is, turns from solid to gas. Astronomers re-examined Hubble observations from the last two decades to find this evidence of water vapor.
Published Unravelling the knotty problem of the Sun's activity
(via sciencedaily.com) A new approach to analysing the development of magnetic tangles on the Sun has led to a breakthrough in a longstanding debate about how solar energy is injected into the solar atmosphere before being released into space, causing space weather events. The first direct evidence that field lines become knotted before they emerge at the visible surface of the Sun has implications for our ability to predict the behavior of active regions and the nature of the solar interior.
Published Astrophysicist outlines plans for the gravitational wave observatory on the moon
(via sciencedaily.com) Not a moonshot: Astronomers explore possibility of lunar observatory to better understand fundamental physics, astronomy and cosmology.
Published Planetary shields will buckle under stellar winds from their dying stars
(via sciencedaily.com) Any life identified on planets orbiting white dwarf stars almost certainly evolved after the star's death, says a new study that reveals the consequences of the intense and furious stellar winds that will batter a planet as its star is dying.
Published Spotted: An exoplanet with the potential to form moons
(via sciencedaily.com) New high-resolution observations clearly show a moon-forming region around exoplanet PDS 70c. The observations have allowed astronomers to determine the ring-shaped region's size and mass for the first time.
Published The weather forecast for Venus
(via sciencedaily.com) Little is known about the weather at night on Venus as the absence of sunlight makes imaging difficult. Now, researchers have devised a way to use infrared sensors on board the Venus orbiter Akatsuki to reveal the first details of the nighttime weather of our nearest neighbor. Their analytical methods could be used to study other planets including Mars and gas giants as well.
Published Tail without a comet: the dusty remains of Comet ATLAS
(via sciencedaily.com) A serendipitous flythrough of the tail of a disintegrated comet has offered scientists a unique opportunity to study these remarkable structures.