Sciencedaily Space & Time News Feeds

  • NASA’s Perseverance drives on Mars’ terrain for first time
    on March 5, 2021 at 9:36 pm

    The first trek of NASA’s largest, most advanced rover yet on the Red Planet marks a major milestone before science operations get under way.

  • Comet Catalina suggests comets delivered carbon to rocky planets
    on March 5, 2021 at 6:37 pm

    Comet Catalina is helping explain more about our own origins as it becomes apparent that comets like Catalina could have been an essential source of carbon on planets like Earth and Mars during the early formation of the solar system.

  • Earth has a hot new neighbor — and it’s an astronomer’s dream
    on March 4, 2021 at 9:11 pm

    A rocky planet discovered in the Virgo constellation could change how we look for life in the universe.

  • Factoring in gravitomagnetism could do away with dark matter
    on March 4, 2021 at 7:54 pm

    Observations of galactic rotation curves give one of the strongest lines of evidence pointing towards the existence of dark matter, a non-baryonic form of matter that makes up an estimated 85% of the matter in the observable Universe. Current assessments of galactic rotation curves are based upon a framework of Newtonian accounts of gravity, a new article suggests that if this is substituted with a general relativity-based model, the need to recourse to dark matter is relieved, replaced by the effects of gravitomagnetism.

  • Volcanoes might light up the night sky of this planet
    on March 4, 2021 at 5:54 pm

    Until now, researchers have found no evidence of global tectonic activity on planets outside our solar system. Scientists have now found that the material inside planet LHS 3844b flows from one hemisphere to the other and could be responsible for numerous volcanic eruptions on one side of the planet.

  • New microcomb could help discover exoplanets and detect diseases
    on March 4, 2021 at 3:03 pm

    Tiny photonic devices could be used to find new exoplanets, monitor our health, and make the internet more energy efficient. Researchers now present a game changing microcomb that could bring advanced applications closer to reality. The new microcomb is a coherent, tunable and reproducible device with up to ten times higher net conversion efficiency than the current state of the art.

  • Source of hazardous high-energy particles located in the Sun
    on March 3, 2021 at 7:25 pm

    In the new study, researchers analyzed the composition of solar energetic particles heading towards Earth, and found they had the same ‘fingerprint’ as plasma located low in the Sun’s corona, close to the middle region of the Sun’s atmosphere, the chromosphere.

  • Will this solve the mystery of the expansion of the universe?
    on March 3, 2021 at 7:24 pm

    Physicists’ new proposal that a new type of extra dark energy is involved is highlighted in scientific journal.

  • Astrophysicist’s 2004 theory confirmed: Why the Sun’s composition varies
    on March 2, 2021 at 6:07 pm

    An astrophysicist theorized why the chemical composition of the Sun’s tenuous outermost layer differs from that lower down. His theory has recently been validated by combined observations of the Sun’s magnetic waves from the Earth and from space.

  • ‘Space hurricane’ in Earth’s upper atmosphere discovered
    on March 2, 2021 at 6:07 pm

    Analysis of observations made by satellites in 2014 has revealed a long-lasting ‘space hurricane’ — a swirling mass of plasma several hundred kilometers above the North Pole, raining electrons instead of water.

  • Atmospheric rivers increase snow mass in West Antarctica
    on March 2, 2021 at 6:06 pm

    A new study used NASA’s ice-measuring laser satellite to identify atmospheric river storms as a key driver of increased snowfall in West Antarctica during the 2019 austral winter.

  • Bottling the world’s coldest plasma
    on March 1, 2021 at 2:11 pm

    Physicists have discovered a way to trap the world’s coldest plasma in a magnetic bottle, a technological achievement that could advance research into clean energy, space weather and solar physics.

  • Astronomers accurately measure the temperature of red supergiant stars
    on February 28, 2021 at 4:43 pm

    Red supergiants are a class of star that end their lives in supernova explosions. Their lifecycles are not fully understood, partly due to difficulties in measuring their temperatures. For the first time, astronomers develop an accurate method to determine the surface temperatures of red supergiants.

  • Imaging space debris in high resolution
    on February 27, 2021 at 1:33 pm

    Researchers have introduced a new method for taking high-resolution images of fast-moving and rotating objects in space, such as satellites or debris in low Earth orbit. They created an imaging process that first utilizes a novel algorithm to estimate the speed and angle at which an object in space is rotating, then applies those estimates to develop a high-resolution picture of the target.

  • Meteorites remember conditions of stellar explosions
    on February 27, 2021 at 1:33 pm

    Researchers went back to the formation of the solar system 4.6 billion years ago to gain new insights into the cosmic origin of the heaviest elements on the periodic table.

  • Largest cluster of galaxies known in the early universe
    on February 26, 2021 at 3:38 pm

    A study has found the most densely populated galaxy cluster in formation in the primitive universe. The researchers predict that this structure, which is at a distance of 12.5 billion light years from us, will have evolved into a cluster similar to that of Virgo, a neighbor of the Local Group of galaxies to which the Milky Way belongs.

  • Nuclear physicists on hunt for squeezed protons
    on February 25, 2021 at 9:32 pm

    While protons populate the nucleus of every atom in the universe, sometimes they can be squeezed into a smaller size and slip out of the nucleus for a romp on their own. Observing these squeezed protons may offer unique insights into the particles that build our universe. Now, researchers hunting for these squeezed protons have come up empty-handed, suggesting there’s more to the phenomenon than first thought.

  • Comet makes a pit stop near Jupiter’s asteroids
    on February 25, 2021 at 7:37 pm

    After traveling several billion miles toward the Sun, a wayward young comet-like object orbiting among the giant planets has found a temporary parking place along the way. The object has settled near a family of captured ancient asteroids, called Trojans, that are orbiting the Sun alongside Jupiter. This is the first time a comet-like object has been spotted near the Trojan population.

  • Scientists link star-shredding event to origins of universe’s highest-energy particles
    on February 25, 2021 at 1:25 pm

    A team of scientists has detected the presence of a high-energy neutrino in the wake of a star’s destruction as it is consumed by a black hole. This discovery sheds new light on the origins of Ultrahigh Energy Cosmic Rays — the highest energy particles in the Universe.

  • Apollo rock samples capture key moments in the Moon’s early history
    on February 25, 2021 at 1:25 pm

    Volcanic rock samples collected during NASA’s Apollo missions bear the isotopic signature of key events in the early evolution of the Moon, a new analysis found. Those events include the formation of the Moon’s iron core, as well as the crystallization of the lunar magma ocean — the sea of molten rock thought to have covered the Moon for around 100 million years after the it formed.

  • Parker Solar Probe offers stunning view of Venus
    on February 25, 2021 at 1:25 pm

    NASA’s Parker Solar Probe captured stunning views of Venus during its close flyby of the planet in July 2020. For more insight, the WISPR team planned a set of similar observations of the Venusian nightside during Parker Solar Probe’s latest Venus flyby on Feb. 20, 2021. Mission team scientists expect to receive and process that data for analysis by the end of April.

  • Evidence of dynamic seasonal activity on a Martian sand dune
    on February 24, 2021 at 5:03 pm

    A scientist examined 11 Mars years of image data to understand the seasonal processes that create linear gullies on the slopes of the megadune in the Russell crater on Mars.

  • New study suggests supermassive black holes could form from dark matter
    on February 24, 2021 at 3:08 pm

    A new theoretical study has proposed a novel mechanism for the creation of supermassive black holes from dark matter. The international team find that rather than the conventional formation scenarios involving ‘normal’ matter, supermassive black holes could instead form directly from dark matter in high density regions in the centres of galaxies. The result has key implications for cosmology in the early Universe.

  • A space-time crystal
    on February 24, 2021 at 3:08 pm

    A research team has succeeded in creating a micrometer-sized space-time crystal consisting of magnons at room temperature. With the help of a scanning transmission X-ray microscope, they were able to film the recurring periodic magnetization structure in a crystal.

  • Cold gas pipelines feeding early, massive galaxies
    on February 24, 2021 at 2:07 pm

    Researchers have detected cosmic pipelines supplying the cold gases necessary for the formation of massive galaxies and the creation of stars. It is the first direct observational evidence of the phenomenon in the early universe.

  • Delayed radio flares after star is destroyed by black hole
    on February 23, 2021 at 4:07 pm

    A team of researchers has discovered evidence of radio flares emitted only long after a star is destroyed by a black hole.

  • The Milky Way may be swarming with planets with oceans and continents like here on Earth
    on February 23, 2021 at 12:28 am

    According to a new study, Earth, Venus and Mars were created from small dust particles containing ice and carbon. The discovery opens up the possibility that the Milky Way may be filled with aquatic planets.

  • NASA’s Mars Perseverance rover provides front-row seat to landing, first audio recording of Red Planet
    on February 22, 2021 at 10:17 pm

    New video from NASA’s Mars 2020 Perseverance rover chronicles major milestones during the final minutes of its entry, descent, and landing (EDL) on the Red Planet on Feb. 18 as the spacecraft plummeted, parachuted, and rocketed toward the surface of Mars. A microphone on the rover also has provided the first audio recording of sounds from Mars.

  • Big galaxies steal star-forming gas from their smaller neighbors
    on February 22, 2021 at 9:42 pm

    Astronomers have discovered that large galaxies are stealing the material that their smaller counterparts need to form new stars.

  • NASA’s Swift helps tie neutrino to star-shredding black hole
    on February 22, 2021 at 5:47 pm

    For only the second time, astronomers have linked an elusive particle called a high-energy neutrino to an object outside our galaxy. Using ground- and space-based facilities, they traced the neutrino to a black hole tearing apart a star, a rare cataclysmic occurrence called a tidal disruption event.

  • Scientists image a bright meteoroid explosion in Jupiter’s atmosphere
    on February 22, 2021 at 5:45 pm

    From aboard the Juno spacecraft, an instrument observing auroras serendipitously spotted a bright flash above Jupiter’s clouds last spring. The Ultraviolet Spectrograph (UVS) team studied the data and determined that they had captured a bolide, an extremely bright meteoroid explosion in the gas giant’s upper atmosphere.

  • Binary stars are all around us, new map of solar neighborhood shows
    on February 22, 2021 at 2:22 pm

    A doctoral student has mined the most recent Gaia survey for all binary stars near Earth and created a 3D atlas of 1.3 million of them. The last local survey included about 200 binary pairs. With such census data, astronomers can conduct statistical analyses on binary populations. For pairs that contain white dwarfs, it’s possible to determine the age of their main-sequence companion, and thus of any exoplanets around them.

  • Life of a pure Martian design
    on February 19, 2021 at 5:42 pm

    Experimental microbially assisted chemolithotrophy provides an opportunity to trace the putative bioalteration processes of the Martian crust. A study on the Noachian Martian breccia Northwest Africa (NWA) 7034 composed of ancient crustal materials from Mars has now delivered a unique prototype of microbial life experimentally designed on a real Martian material.

  • Touchdown! NASA’s Mars Perseverance rover safely lands on Red Planet
    on February 18, 2021 at 9:20 pm

    The largest, most advanced rover NASA has sent to another world touched down on Mars Thursday, after a 203-day journey traversing 293 million miles (472 million kilometers). About the size of a car, the robotic geologist and astrobiologist will undergo several weeks of testing before it begins its two-year science investigation of Mars’ Jezero Crater. A fundamental part of its mission is astrobiology, including the search for signs of ancient microbial life.

  • First black hole ever detected is more massive than we thought
    on February 18, 2021 at 7:28 pm

    New observations of the first black hole ever detected have led astronomers to question what they know about the Universe’s most mysterious objects. The research shows the system known as Cygnus X-1 contains the most massive stellar-mass black hole ever detected without the use of gravitational waves.

  • Ancient relic points to a turning point in Earth’s history 42,000 years ago
    on February 18, 2021 at 7:27 pm

    The temporary breakdown of Earth’s magnetic field 42,000 years ago sparked major climate shifts that led to global environmental change and mass extinctions, a new international study shows.

  • Quantum collaboration gives new gravity to the mysteries of the universe
    on February 17, 2021 at 8:10 pm

    Scientists have used cutting-edge research in quantum computation and quantum technology to pioneer a radical new approach to determining how our Universe works at its most fundamental level.

  • On the quest for other Earths
    on February 17, 2021 at 4:54 pm

    An international research team has developed a new method for directly imaging smaller planets in the habitable zone of a neighboring star system. This opens up new possibilities in the search for extraterrestrial life.

  • The smallest galaxies in our universe bring more about dark matter to light
    on February 16, 2021 at 6:34 pm

    Our universe is dominated by a mysterious matter known as dark matter. Its name comes from the fact that dark matter does not absorb, reflect or emit electromagnetic radiation, making it difficult to detect.

  • Planetary scientists discover evidence for a reduced atmosphere on ancient Mars
    on February 16, 2021 at 6:34 pm

    The transition from a reduced planet to an oxidized planet is referred to as the Great Oxidation Event or GOE. This transition was a central part of our planet’s evolution, and fundamentally linked to the evolution of life here — specifically to the prevalence of photosynthesis that produced oxygen. Planetary geologists have discovered that Mars underwent a great oxygenation event of its own — billions of years ago, the red planet was not so red.

  • Supercomputer turns back cosmic clock
    on February 16, 2021 at 4:49 pm

    Astronomers have tested a method for reconstructing the state of the early Universe by applying it to 4000 simulated universes using the ATERUI II supercomputer. They found that together with new observations the method can set better constraints on inflation, one of the most enigmatic events in the history of the Universe. The method can shorten the observation time required to distinguish between various inflation theories.

  • First humans in Tasmania must have seen spectacular auroras
    on February 16, 2021 at 2:28 pm

    A small sub-alpine lake in western Tasmania has helped establish that 41,000 years ago Australia experienced the Laschamp geomagnetic excursion and that Tasmanian, Aboriginals, would’ve seen it.

  • The cataclysm that killed the dinosaurs
    on February 15, 2021 at 2:24 pm

    The Chicxulub impactor was an asteroid or comet that crashed into Earth about 66 million years ago and left behind a crater off the coast of Mexico that spans 93 miles and goes 12 miles deep. Its devastating impact brought the reign of the dinosaurs to an abrupt end. The enduring puzzle has always been where the asteroid or comet originated, and how it came to strike the Earth. And now researchers believe they have the answer.

  • NASA’s TESS discovers new worlds in a river of young stars
    on February 13, 2021 at 12:32 am

    Astronomers have discovered a trio of hot worlds larger than Earth orbiting a much younger version of our Sun called TOI 451. The system resides in the recently discovered Pisces-Eridanus stream, a collection of stars less than 3% the age of our solar system that stretches across one-third of the sky.

  • New machine learning theory raises questions about nature of science
    on February 12, 2021 at 2:41 pm

    A novel computer algorithm, or set of rules, that accurately predicts the orbits of planets in the solar system could be adapted to better predict and control the behavior of the plasma that fuels fusion facilities designed to harvest on Earth the fusion energy that powers the sun and stars.

  • Scientist proposes a new timeline for Mars terrains
    on February 11, 2021 at 7:44 pm

    A scientist has updated Mars chronology models to find that terrains shaped by ancient water activity on the planet’s surface may be hundreds of millions of years older than previously thought. This new chronology for Mars, based on the latest dynamical models for the formation and evolution of the solar system, is particularly significant as the days count down until NASA’s Mars 2020 Perseverance rover lands on the Red Planet on February 18, 2021.

  • Portrait of young galaxy throws theory of galaxy formation on its head
    on February 11, 2021 at 7:44 pm

    Scientists have challenged our current understanding of how galaxies form by unveiling pictures of a young galaxy in the early life of the Universe which appears surprisingly mature.

  • Hubble uncovers concentration of small black holes
    on February 11, 2021 at 7:43 pm

    Scientists were expecting to find an intermediate-mass black hole at the heart of the globular cluster NGC 6397, but instead they found evidence of a concentration of smaller black holes lurking there. New data from the NASA/ESA Hubble Space Telescope have led to the first measurement of the extent of a collection of black holes in a core-collapsed globular cluster.

  • Vaporised crusts of Earth-like planets found in dying stars
    on February 11, 2021 at 4:38 pm

    Remnants of planets with Earth-like crusts have been discovered in the atmospheres of four nearby white dwarf stars by astronomers, offering a glimpse of the planets that may have once orbited them up to billions of years ago.

  • Astronomers confirm solar system’s most distant known object is indeed Farfarout
    on February 10, 2021 at 8:33 pm

    Astronomers have confirmed that a faint object discovered in 2018 and nicknamed ‘Farfarout’ is indeed the most distant object yet found in our Solar System. The object has just received its designation from the International Astronomical Union.

  • Spectacular ‘honeycomb heart’ revealed in iconic stellar explosion
    on February 10, 2021 at 6:33 pm

    A unique ‘heart-shape’, with wisps of gas filaments showing an intricate honeycomb-like arrangement, has been discovered at the center of the iconic supernova remnant, the Crab Nebula. Astronomers have mapped the void in unprecedented detail, creating a realistic three-dimensional reconstruction.

  • Astronomers uncover mysterious origins of ‘super-Earths’
    on February 10, 2021 at 6:33 pm

    Mini-Neptunes and super-Earths up to four times the size of our own are the most common exoplanets orbiting stars beyond our solar system. Until now, super-Earths were thought to be the rocky cores of mini-Neptunes whose gassy atmospheres were blown away. Astronomers show that some of these exoplanets never had gaseous atmospheres to begin with, shedding new light on their mysterious origins.

  • A new way to look for life-sustaining planets
    on February 10, 2021 at 2:11 pm

    A new system for mid-infrared exoplanet imaging in combination with long observation time allows ground-based telescopes to directly capture images of planets about three times the size of Earth within the habitable zones of nearby stars.

  • Can super-Earth interior dynamics set the table for habitability?
    on February 10, 2021 at 1:41 am

    New research provides a framework for understanding the interiors of super-Earths — rocky exoplanets between 1.5 and 2 times the size of our home planet — which is a prerequisite to assess their potential for habitability. Planets of this size are among the most abundant in exoplanetary systems.

  • Astronomers offer possible explanation for elusive dark-matter-free galaxies
    on February 9, 2021 at 8:18 pm

    Astronomers have found that some dwarf galaxies may today appear to be dark-matter free even though they formed as galaxies dominated by dark matter in the past.

  • Rare blast’s remains discovered in Milky Way’s center
    on February 8, 2021 at 4:43 pm

    Astronomers may have found our Galaxy’s first example of an unusual kind of stellar explosion. This discovery adds to the understanding of how some stars shatter and seed the universe with elements critical for life on Earth.

  • Study of supergiant star Betelgeuse unveils the cause of its pulsations
    on February 8, 2021 at 3:05 pm

    Betelgeuse is normally one of the brightest, most recognizable stars of the winter sky, marking the left shoulder of the constellation Orion. But lately, it has been behaving strangely: an unprecedentedly large drop in its brightness has been observed in early 2020, which has prompted speculation that Betelgeuse may be about to explode.

  • Student astronomer finds galactic missing matter
    on February 5, 2021 at 5:12 pm

    Half of the universe’s matter is ‘missing’, but a PhD student has developed an ingenious method to help track it down. She has done this using distant galaxies as ‘locator pins’ to detect an otherwise ‘invisible’ cold clump of gas just 10 light years from Earth.

  • Researchers create ‘whirling’ nano-structures in anti-ferromagnets
    on February 4, 2021 at 7:39 pm

    Inspired by the Big Bang cooling, the new finding could lead to super-fast, energy-efficient memory chips.

  • Dark matter: A new tool in the search for axions
    on February 4, 2021 at 3:16 pm

    Researchers have discovered a new avenue to search for axions — a hypothetical particle that is one of the candidates of dark matter particles. The group, which usually performs ultra-high precision measurements of the fundamental properties of trapped antimatter, has for the first time used the ultra-sensitive superconducting single antiproton detection system of their advanced Penning trap experiment as a sensitive dark matter antenna.