NEWS

SOURCE: SCIENCE DAILY
Here is an RSS feed from Science Daily’s Space and Time section to keep you up to date on current events in the space community.
  • Spaceflight wreaks havoc on liver metabolism

    Researchers have demonstrated that microgravity and other environmental factors in space play different roles in inducing oxidative stress, which, in turn, alters the metabolism of sulfur-containing compounds in the liver of mice. The study highlighted steps that can be taken, such as boosting antioxidant capacity with dietary supplements, to safeguard astronaut health.
  • Breakthrough in understanding cosmic forces that shape Earth's heliosphere

    Astrophysicists have made a breakthrough discovery in our understanding of the cosmic forces that shape the heliosphere.
  • Stellar cocoon with organic molecules at the edge of our galaxy

    Astronomers have detected a newborn star and the surrounding cocoon of complex organic molecules at the edge of our Galaxy, which is known as the extreme outer Galaxy. The observations with the Atacama Large Millimeter/submillimeter Array reveal the hidden chemical complexity of our Universe.
  • TESS discovers a planet the size of Mars but with the makeup of Mercury

    The TESS mission has discovered an ultra-short-period planet (USP) that is also super light. The planet is named GJ 367 b, and it orbits its star in just eight hours. The planet is about the size of Mars, and half as massive as the Earth, making it one of the lightest planets discovered to date.
  • Giant planets could reach 'maturity' much earlier than previously thought, study reveals

    Scientists have measured the masses of the giant planets of the V1298 Tau system, just 20 million year old. Masses for such young giant planets had not been obtained previously, and this is the first evidence that these objects have already reached their final size at very early stages of their evolution.
  • Beads of glass in meteorites help scientists piece together how solar system formed

    Scientists have published an analysis laying out how the tiny beads of glass inside many meteorites came to be -- and what they can tell us about what happened in the early solar system.
  • Lunar radar data uncovers new clues about moon’s ancient past

    The dusty surface of the moon -- immortalized in images of Apollo astronauts' lunar footprints -- formed as the result of asteroid impacts and the harsh environment of space breaking down rock over millions of years. An ancient layer of this material, covered by periodic lava flows and now buried under the lunar surface, could provide new insight into the Moon's deep past, according to a team of scientists.
  • Astronomers discover strangely massive black hole in Milky Way satellite galaxy

    Astronomers have discovered an unusually massive black hole at the heart of one of the Milky Way's dwarf satellite galaxies, called Leo I. Almost as massive as the black hole in our own galaxy, the finding could redefine our understanding of how all galaxies -- the building blocks of the universe -- evolve.
  • Arecibo data still has astronomers in a spin

    Data collected by the Arecibo Radio Telescope before it collapsed late last year will help astronomers better understand how our local neighbourhood of galaxies formed. Arecibo was the world's largest single-dish radio telescope until it was surpassed in 2016 by China's Five-hundred-meter Aperture Spherical Telescope (FAST). At the end of 2020, Arecibo's 900-ton receiver platform suddenly and spectacularly fell onto the dish below, destroying the telescope.
  • Brief presence of water in Arabia Terra on Mars

    Scientists recently discovered that water was once present in a region of Mars called Arabia Terra.
  • Closest pair of supermassive black holes yet

    Astronomers have revealed the closest pair of supermassive black holes to Earth ever observed. The two objects also have a much smaller separation than any other previously spotted pair of supermassive black holes and will eventually merge into one giant black hole.
  • Largest comet ever observed was active at near-record distance

    Astronomers show that comet Bernardinelli-Bernstein (BB), the largest comet ever discovered, was active long before previously thought, meaning the ice within it is vaporizing and forming an envelope of dust and vapor known as a coma. Only one active comet has been observed farther from the sun, and it was much smaller than comet BB.
  • Strong winds power electric fields in the upper atmosphere

    Using observations from NASA's ICON mission, scientists presented the first direct measurements of Earth's long-theorized dynamo on the edge of space: a wind-driven electrical generator that spans the globe 60-plus miles above our heads. The dynamo churns in the ionosphere, the electrically charged boundary between Earth and space. It's powered by tidal winds in the upper atmosphere that are faster than most hurricanes and rise from the lower atmosphere, creating an electrical environment that can affect satellites and technology on Earth.
  • Sun is likely an unaccounted source of the Earth’s water

    Curtin University researchers have helped unravel the enduring mystery of the origins of the Earth's water, finding the Sun to be a surprising likely source.
  • In the quantum realm, not even time flows as you might expect

    A team of physicists has shown how quantum systems can simultaneously evolve along two opposite time arrows - both forward and backward in time. The study necessitates a rethink of how the flow of time is understood and represented in contexts where quantum laws play a crucial role.
  • Orbital harmony limits late arrival of water on TRAPPIST-1 planets

    Seven Earth-sized planets orbit the star TRAPPIST-1 in near-perfect harmony, and researchers have now used that harmony to determine how much physical abuse the planets could have withstood in their infancy.
  • Mars seismic deployment lays groundwork for future planetary missions

    About 1000 days after the Mars InSight mission deployed SEIS, the first seismometer on the red planet, researchers are analyzing new seismic data and reporting on instrument responses, using these data to plan for future planetary seismographs.
  • Astronomers discover ancient brown dwarf with lithium deposits intact

    Researchers have discovered lithium in the oldest and coldest brown dwarf where the presence of this valuable element has been confirmed so far. This substellar object, called Reid 1B, preserves intact the earliest known lithium deposit in our cosmic neighborhood, dating back to a time before the formation of the binary system to which it belongs.
  • Hubble witnesses shock wave of colliding gases in Running Man Nebula

    Mounded, luminous clouds of gas and dust glow in this Hubble image of a Herbig-Haro object known as HH 45. Herbig-Haro objects are a rarely seen type of nebula that occurs when hot gas ejected by a newborn star collides with the gas and dust around it at hundreds of miles per second, creating bright shock waves. In this image, blue indicates ionized oxygen (O II) and purple shows ionized magnesium (Mg II). Researchers were particularly interested in these elements because they can be used to identify shocks and ionization fronts. This object is located in the nebula NGC 1977, which itself is part of a complex of three nebulae called The Running Man. NGC 1977 -- like its companions NGC 1975 and NGC 1973 -- is a reflection nebula, which means that it doesn't emit light on its own, but reflects light from nearby stars, like a streetlight illuminating fog. Hubble observed this region to look for stellar jets and planet-forming disks around young stars, and examine how their environment affects the evolution of such disks.
  • One year on this giant, blistering hot planet is just 16 hours long

    Astronomers have discovered an ultrahot Jupiter with shortest orbit of any known gas giant planet.
  • Analysis of Mars’s wind-induced vibrations sheds light on the planet’s subsurface properties

    NASA's Mars mission InSight probes the geology of the Elysium Planitia, finding alternate layers of basalt and sediments. An international team of scientists compares on-the-ground data with data from models, which helps to understand, e.g., the surface's load-bearing capacity and trafficability.
  • Scientist reveals cause of lost magnetism at meteorite site

    A scientist has discovered a method for detecting and better defining meteorite impact sites that have long lost their tell-tale craters. The discovery could further the study of not only Earth's geology but also that of other bodies in our solar system.
  • One in five galaxies in the early universe could still be hidden behind cosmic dust

    Astronomers have discovered two previously invisible galaxies billions of light-years away. Their discovery suggests that up to one in five such distant galaxies remain hidden from our telescopes, camouflaged by cosmic dust. The new knowledge changes perceptions of our universe's evolution since the Big Bang.
  • High-speed propeller star is fastest spinning white dwarf

    A white dwarf star that completes a full rotation once every 25 seconds is the fastest spinning confirmed white dwarf, according to a team of astronomers.
  • Scientists create insights into perhaps the most extreme state of matter produced on Earth

    Exotic laser-produced high-energy-density (HED) plasmas akin to those found in stars and nuclear explosions could provide insight into events throughout the universe. Physicists have discovered a new way to measure and understand these plasmas, among the most extreme states of matter ever produced on Earth. Improved understanding could provide benefits ranging from fine-tuning the high-density plasmas in inertial confinement fusion experiments to better understanding of processes throughout the universe.