• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to secondary sidebar
  • Home
  • About
  • Login
  • User
  • Register
  • Members

Science and Technology News

Market trends and business perspectives

  • Home
  • News
  • Features
  • Industry
  • Life
  • Universe

Universe

On the quest for other Earths

February 19, 2021 by Zakia

In the search for planets capable of sustaining life, an international research team with members from ETH has taken a significant step forward.

As the researchers reported recently in the journal Nature Communications, they found signs of a Neptune-sized planet in the Alpha Centauri star system, a mere 4.4 light years away from Earth.

This exoplanet is located in a zone that may offer suitable conditions for life. The team was able to collect data with unprecedented sensitivity, thus registering even very weak signals. [Read more…] about On the quest for other Earths

Related Posts

  • Carbon-rich exoplanets may be made of diamonds
    37
    Carbon-rich exoplanets may be made of diamondsAs missions like NASA's Hubble Space Telescope, TESS and Kepler continue to provide insights into the properties of exoplanets (planets around other stars), scientists are increasingly able to piece together what these planets look like, what they are made of, and if they could be habitable or even inhabited. In…
    Tags: planets, exoplanets, earth, water, life, stars, study, telescope, team, planet's
  • Young stars ‘destroy Earth-like atmospheres’
    32
    Young stars ‘destroy Earth-like atmospheres’The discoveries of thousands of planets orbiting stars outside our solar system have made questions about the potential for life to form on these planets fundamentally important in modern science. Fundamentally important for the habitability of a planet is whether or not it can hold onto an atmosphere, which requires…
    Tags: planets, stars, atmosphere, earth-like, planet, life, star, earth
  • AI and photonics join forces to make it easier to find 'new Earths'
    32
    AI and photonics join forces to make it easier to find 'new Earths'Australian scientists have developed a new type of sensor to measure and correct the distortion of starlight caused by viewing through the Earth's atmosphere, which should make it easier to study the possibility of life on distant planets. Using artificial intelligence and machine learning, University of Sydney optical scientists have…
    Tags: planets, earth, methods, stars, light, exoplanets, atmosphere, planet, telescope, star

Filed Under: Research, Universe Tagged With: atmosphere, boehle, data, earth, life, light, measurement, measurements, planet, planet's, range, signal, signals, signs, stars, telescope

Supercomputer turns back cosmic clock

February 18, 2021 by Zakia

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 at the National Astronomical Observatory of Japan (NAOJ).

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.

Just after the Universe came into existence 13.8 billion years ago, it suddenly increased more than a trillion, trillion times in size, in less than a trillionth of a trillionth of a microsecond; but no one knows how or why. [Read more…] about Supercomputer turns back cosmic clock

Filed Under: Research, Universe Tagged With: data, density, distribution, effects, fluctuations, galaxies, galaxy, growth, inflation, method, primordial, required, simulations, supercomputer, theories, trillion, trillionth, universe

Student astronomer finds galactic missing matter

February 9, 2021 by Zakia

Astronomers have for the first time used distant galaxies as ‘scintillating pins’ to locate and identify a piece of the Milky Way’s missing matter.

For decades, scientists have been puzzled as to why they couldn’t account for all the matter in the universe as predicted by theory. While most of the universe’s mass is thought to be mysterious dark matter and dark energy, 5 percent is ‘normal matter’ that makes up stars, planets, asteroids, peanut butter and butterflies. This is known as baryonic matter.

However, direct measurement has only accounted for about half the expected baryonic matter. [Read more…] about Student astronomer finds galactic missing matter

Related Posts

  • How nearby galaxies form their stars
    31
    How nearby galaxies form their starsStars are born in dense clouds of molecular hydrogen gas that permeates interstellar space of most galaxies. While the physics of star formation is complex, recent years have seen substantial progress towards understanding how stars form in a galactic environment. What ultimately determines the level of star formation in galaxies,…
    Tags: gas, galaxies, universe

Filed Under: Research, Universe Tagged With: baryonic, cloud, cold, galaxies, gas, light, matter, missing, radio, wang

Magnetic waves explain mystery of Sun’s outer layer

January 28, 2021 by Zakia

The Sun’s extremely hot outer layer, the corona, has a very different chemical composition from the cooler inner layers, but the reason for this has puzzled scientists for decades.

One explanation is that, in the middle layer (the chromosphere), magnetic waves exert a force that separates the Sun’s plasma into different components, so that only the ion particles are transported into the corona, while leaving neutral particles behind (thus leading to a build-up of elements such as iron, silicon and magnesium in the outer atmosphere).

Now, in a new study published in The Astrophysical Journal, researchers combined observations from a telescope in New Mexico, the United States, with satellites located near Earth to identify a link between magnetic waves in the chromosphere and areas of abundant ionised particles in the hot outer atmosphere. [Read more…] about Magnetic waves explain mystery of Sun’s outer layer

Filed Under: Science, Universe Tagged With: abundant, atmosphere, chemical, chromosphere, composition, corona, findings, generated, inner, layer, layers, magnetic, observations, outer, particles, solar, space, sun, sun's, team, waves

Study: X-Rays surrounding ‘Magnificent 7’ may be traces of sought-after particle

January 21, 2021 by Zakia

A new study, led by a theoretical physicist at the US Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), suggests that never-before-observed particles called axions may be the source of unexplained, high-energy X-ray emissions surrounding a group of neutron stars.

First theorized in the 1970s as part of a solution to a fundamental particle physics problem, axions are expected to be produced at the core of stars, and to convert into particles of light, called photons, in the presence of a magnetic field.

Axions may also make up dark matter – the mysterious stuff that accounts for an estimated 85 percent of the total mass of the universe, yet we have so far only seen its gravitational effects on ordinary matter. Even if the X-ray excess turns out not to be axions or dark matter, it could still reveal new physics. [Read more…] about Study: X-Rays surrounding ‘Magnificent 7’ may be traces of sought-after particle

Filed Under: News, Universe Tagged With: axions, berkeley, dark, excess, expected, light, magnetic, magnificent, matter, neutron, particle, particles, physics, produced, researchers, safdi, stars, study, university, x-ray

How nearby galaxies form their stars

January 1, 2021 by Zakia

Stars are born in dense clouds of molecular hydrogen gas that permeates interstellar space of most galaxies. While the physics of star formation is complex, recent years have seen substantial progress towards understanding how stars form in a galactic environment. What ultimately determines the level of star formation in galaxies, however, remains an open question.

In principle, two main factors influence the star formation activity: The amount of molecular gas that is present in galaxies and the timescale over which the gas reservoir is depleted by converting it into stars. While the gas mass of galaxies is regulated by a competition between gas inflows, outflows and consumption, the physics of the gas-to-star conversion is currently not well understood.

Given its potentially critical role, many efforts have been undertaken to determine the gas depletion timescale observationally. However, these efforts resulted in conflicting findings partly because of the challenge in measuring gas masses reliably given current detection limits. [Read more…] about How nearby galaxies form their stars

Related Posts

  • Student astronomer finds galactic missing matter
    31
    Student astronomer finds galactic missing matterAstronomers have for the first time used distant galaxies as 'scintillating pins' to locate and identify a piece of the Milky Way's missing matter. For decades, scientists have been puzzled as to why they couldn't account for all the matter in the universe as predicted by theory. While most of…
    Tags: gas, galaxies, universe

Filed Under: Research, Universe Tagged With: formation, galaxies, gas, hydrogen, molecular, reservoir, stars, universe

A blazar in the early universe

December 31, 2020 by Zakia

The supersharp radio “vision” of the National Science Foundation’s Very Long Baseline Array (VLBA) has revealed previously unseen details in a jet of material ejected at three-quarters the speed of light from the core of a galaxy some 12.8 billion light-years from Earth.

The galaxy, dubbed PSO J0309+27, is a blazar, with its jet pointed toward Earth, and is the brightest radio-emitting blazar yet seen at such a distance. It also is the second-brightest X-ray emitting blazar at such a distance.

In this image, the brightest radio emission comes from the galaxy’s core, at bottom right. The jet is propelled by the gravitational energy of a supermassive black hole at the core, and moves outward, toward the upper left. The jet seen here extends some 1,600 light-years, and shows structure within it.

At this distance, PSO J0309+27 is seen as it was when the universe was less than a billion years old, or just over 7 percent of its current age.

An international team of astronomers led by Cristiana Spingola of the University of Bologna in Italy, observed the galaxy in April and May of 2020. Their analysis of the object’s properties provides support for some theoretical models for why blazars are rare in the early universe. The researchers reported their results in the journal Astronomy & Astrophysics.

Related Posts

  • Evidence of broadside collision with dwarf galaxy discovered in Milky Way
    33
    Evidence of broadside collision with dwarf galaxy discovered in Milky WayNearly 3 billion years ago, a dwarf galaxy plunged into the center of the Milky Way and was ripped apart by the gravitational forces of the collision. Astrophysicists announced today that the merger produced a series of telltale shell-like formations of stars in the vicinity of the Virgo constellation, the…
    Tags: galaxy, years, billion, news, universe
  • Water on ancient Mars
    31
    Water on ancient MarsThere's a long-standing question in planetary science about the origin of water on Earth, Mars and other large bodies such as the moon. One hypothesis says that it came from asteroids and comets post-formation. But some planetary researchers think that water might just be one of many substances that occur…
    Tags: analysis, years, billion, team, international, science, earth, researchers, news, universe

Filed Under: News, Universe Tagged With: billion, blazar, brightest, core, distance, earth, galaxy, jet, light-years, radio, universe

Three flavors are better than one – in ice cream and supernova research

December 30, 2020 by Zakia

Any Neapolitan ice cream lover knows three flavors are better than one. New research from Northwestern University has found that by studying all three “flavors” involved in a supernova, they’ve unlocked more clues as to how and why stars die.

Scientists look at neutrinos (subatomic particles) for critical information about supernova explosions. While previous research identified three “flavors” of neutrinos, many researchers continued to simplify studies on the topic by studying “vanilla” while ignoring “chocolate” and “strawberry”.

By including all three flavors in the study, Northwestern researchers have developed a deeper knowledge of dying stars and begun to unravel existing hypotheses. [Read more…] about Three flavors are better than one – in ice cream and supernova research

Filed Under: Research, Universe Tagged With: flavors, neutrinos, supernova, three, universe

Scientists claim controversial results of comets observations are consistent

December 4, 2020 by Zakia

Astrophysicists from Far Eastern Federal University (FEFU) joined the international research team for explaining the difference in the results of observation of the comet 41P/ Tuttle – Giacobini – Kresak.

Researchers believe that data obtained by three independent teams are complementary and its complex analysis helps to unravel the mystery of dust chemical composition of comet 41P and other conundrums of the Universe. A related article appears in Astronomy & Astrophysics.

The activity of comets is more complex than it appeared to be, one of the research outcomes says. The chemical composition of a cometary coma (gas-dusty environment of the nucleus) is able to change very rapidly, literally during the day. That is because of the Sun affects the nucleus of a comet approaching. [Read more…] about Scientists claim controversial results of comets observations are consistent

Filed Under: News, Universe Tagged With: academy, aperture, applied, astronomical, chemical, cometary, comets, composition, data, dust, filters, groups, institute, kochergin, observation, particles, photometric, processes, researchers, scientists, university

Final dance of unequal black hole partners

November 15, 2020 by Zakia

Solving the equations of general relativity for colliding black holes is no simple matter.

Physicists began using supercomputers to obtain solutions to this famously hard problem back in the 1960s. In 2000, with no solutions in sight, Kip Thorne, 2018 Nobel Laureate and one of the designers of LIGO, famously bet that there would be an observation of gravitational waves before a numerical solution was reached.

He lost that bet when, in 2005, Carlos Lousto, then at The University of Texas at Brownsville, and his team generated a solution using the Lonestar supercomputer at the Texas Advanced Computing Center. (Concurrently, groups at NASA and Caltech derived independent solutions.) [Read more…] about Final dance of unequal black hole partners

Filed Under: Research, Universe Tagged With: frontera, gravitational, hole, lousto, mass, merger, uncategorized, waves

  • Go to page 1
  • Go to page 2
  • Go to Next Page »

Primary Sidebar










Search

Recent Posts

  • New type of collagen could give cosmetics ‘highest biocompatibility’ with human skin
  • Study of auto recalls shows carmakers delay announcements until they ‘hide in the herd’
  • Depressed and out of work? Therapy may help you find a job
  • Robot displays ‘glimmer of empathy’ to a partner robot
  • Tobii, Valve, and OpenBCI collaborate to make brain-computer interfaces for gaming
  • Location tracking apps and privacy implications
  • Déjà brew? Another shot for lovers of coffee
  • Edible holograms could someday decorate foods
  • ABB provides Ty-Rap cable ties for NASA Mars 2020 Perseverance Rover Mission
  • On the quest for other Earths

Most read

  • Has the hidden matter of the universe been discovered?
    Has the hidden matter of the universe been discovered?
  • Coffee lovers, rejoice! Drinking more coffee associated with decreased heart failure risk
    Coffee lovers, rejoice! Drinking more coffee associated with decreased heart failure risk

Subjects

  • Archaeology
  • Brain
  • Engineering
  • Environment
  • Features
  • Health
  • History
  • Industry
  • Life
  • Nature
  • News
  • Opinion
  • Research
  • Science
  • Space
  • Technology
  • Uncategorized
  • Universe

Tags

brain carbon changes children climate data earth energy food global health human industry learning life light method mission model nasa news participants particles people physical products researchers science scientists skin solar space stars students study surface system team technology temperature uncategorized university water will work

Secondary Sidebar




Information

  • About
  • Account
  • Login
  • Logout
  • Members
  • Password Reset
  • Register
  • User

Copyright © 2021 · News Pro on Genesis Framework · WordPress · Log in