Make PDO Error: SQLSTATE[HY000] [1045] Access denied for user 'taadmin'@'localhost' (using password: YES) Teach Astronomy - News

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.
  • Infant planet discovered

    One of the youngest planets ever found around a distant infant star has been discovered by an international team of scientists.
  • Need for larger space telescope inspires lightweight flexible holographic lens

    Inspired by a concept for discovering exoplanets with a giant space telescope, a team of researchers is developing holographic lenses that render visible and infrared starlight into either a focused image or a spectrum.
  • Astronomers provide 'field guide' to exoplanets known as hot Jupiters

    By combining Hubble Space Telescope observations with theoretical models, a team of astronomers has gained insights into the chemical and physical makeup of a variety of exoplanets known as hot Jupiters. The findings provide a new and improved 'field guide' for this group of planets and inform ideas about planet formation in general.
  • New galaxy images reveal a fitful start to the Universe

    New images have revealed detailed clues about how the first stars and structures were formed in the Universe and suggest the formation of the Galaxy got off to a fitful start.
  • Astronomers detect signs of an atmosphere stripped from a planet in a giant impact

    A team has discovered evidence of a giant impact in the nearby HD 17255 star system, in which an Earth-sized terrestrial planet and a smaller impactor likely collided at least 200,000 years ago, stripping off part of one planet's atmosphere.
  • Amount of information in visible universe quantified

    Researchers have long suspected a connection between information and the physical universe, with various paradoxes and thought experiments used to explore how or why information could be encoded in physical matter. A researcher attempts to shed light on exactly how much of this information is out there and presents a numerical estimate for the amount of encoded information in all the visible matter in the universe -- approximately 6 times 10 to the power of 80 bits of information.
  • Titan’s river maps may advise Dragonfly’s 'sedimental' journey

    With future space exploration in mind, a team of astronomers has published the final maps of Titan's liquid methane rivers and tributaries -- as seen by NASA's late Cassini mission -- so that may help provide context for Dragonfly's upcoming 2030s expedition.
  • NASA, ULA launch Lucy Mission to ‘fossils’ of planet formation

    NASA's Lucy mission, the agency's first to Jupiter's Trojan asteroids, launched from Cape Canaveral Space Force Station in Florida. Over the next 12 years, Lucy will fly by one main-belt asteroid and seven Trojan asteroids, making it the agency's first single spacecraft mission in history to explore so many different asteroids. Lucy will investigate these 'fossils' of planetary formation up close during its journey.
  • Scientists find evidence the early solar system harbored a gap between its inner and outer regions

    In the early solar system, a 'protoplanetary disk' of dust and gas rotated around the sun and eventually coalesced into the planets we know today. A new study suggests that a mysterious gap existed within this disk around 4.567 billion years ago, and likely shaped the composition of the solar system's infant planets.
  • The planet does not fall far from the star

    A compositional link between planets and their respective host star has long been assumed in astronomy. Scientists now deliver empirical evidence to support the assumption -- and partly contradict it at the same time.
  • Twelfth century literature and space-age data help map 3,000 years of auroras

    Researchers have published maps indicating how the auroral zone has moved over the last three millennia.
  • Evidence of superionic ice provides new insights into unusual magnetic fields of Uranus and Neptune

    Not all ice is the same. The solid form of water comes in more than a dozen different - sometimes more, sometimes less crystalline - structures, depending on the conditions of pressure and temperature in the environment. Superionic ice is a special crystalline form, half solid, half liquid - and electrically conductive. Its existence has been predicted on the basis of various models and has already been observed on several occasions under - very extreme - laboratory conditions. New results provide another piece of the puzzle in the spectrum of the manifestations of water. And they may also help to explain the unusual magnetic fields of the planets Uranus and Neptune, which contain a lot of water.
  • Immense set of mysterious fast radio bursts

    An international team of astronomers recently observed more than 1,650 fast radio bursts (FRBs) detected from one source in deep space, which amounts to the largest set -- by far -- of the mysterious phenomena ever recorded. The source, dubbed FRB 121102, was observed using the Five-hundred-meter Aperture Spherical Telescope (FAST) in China, and represents more FRBs in one event than all previous reported occurrences combined.
  • Precise measurement of neutron lifetime

    Physicists have made the most precise measurement of the neutron's lifetime, which may help answer questions about the early universe.
  • How the Sun’s magnetic forces arrange gas particles

    Solar prominences hover above the visible solar disk like giant clouds, held there by a supporting framework of magnetic forces, originating from layers deep within the Sun. The magnetic lines of force are moved by ever-present gas currents -- and when the supporting framework moves, so does the prominence cloud. A research team has observed how magnetic forces lifted a prominence by 25,000 kilometers -- about two Earth diameters -- within ten minutes.
  • Did Venus ever have oceans?

    Astrophysicists have investigated the past of Venus to find out whether Earth's sister planet once had oceans.
  • Did a black hole eating a star generate a neutrino? Unlikely, new study shows

    New calculations show that a black hole slurping down a star may not have generated enough energy to launch a neutrino.
  • To watch a comet form, a spacecraft could tag along for a journey toward the sun

    A new article proposes that space probes could hitch a ride with 'centaurs' as they become comets. Along the way, the spacecraft would gather data that would otherwise be impossible to record -- including how comets, Earth-like planets, and even the solar system formed.
  • A 5-sigma standard model anomaly is possible

    One of the best chances for proving beyond-the-standard-model physics relies on something called the Cabibbo-Kobayashi-Maskawa (CKM) matrix. The standard model insists that the CKM matrix, which describes the mixing of quarks, should be unitary. But growing evidence suggests that during certain forms of radioactive decay, the unitarity of the CKM matrix might break.
  • Some of the biggest asteroids in our Solar System

    Astronomers have imaged 42 of the largest objects in the asteroid belt, located between Mars and Jupiter. The observations reveal a wide range of peculiar shapes, from spherical to dog-bone, and are helping astronomers trace the origins of the asteroids in our Solar System.
  • Professor uncovers surprising results from nuclear reactions inside stars

    Where do our elements come from? And how are they made? New research is flipping the script on those age-old nuclear astrophysics questions. The truth is out there -- several light years away among the stars, to be exact.
  • Challenging the Big Bang puzzle of heavy elements

    It has long been theorized that hydrogen, helium, and lithium were the only chemical elements in existence during the Big Bang, and that supernova explosions are responsible for transmuting these elements into heavier ones. Researchers are now challenging this and propose an alternative model for the formation of nitrogen, oxygen, and water based on the history of Earth's atmosphere. They postulate that the 25 elements with atomic numbers smaller than iron were created via an endothermic nuclear transmutation of two nuclei, carbon and oxygen.
  • Stellar 'fossils' in meteorites point to distant stars

    A new study analyzes a diverse set of presolar grains with the goal of realizing their true stellar origins.
  • Brain damage from long stays in space

    Spending a long time in space appears to cause brain damage. This is shown by a study of five Russian cosmonauts who had stayed on the International Space Station (ISS).
  • Strange radio waves emerge from the direction of the galactic center

    Astronomers have detected a very unusual variable radio signal from towards the heart of the Milky Way, which is now tantalizing scientists.