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Ghost Light From Distant Dead Galaxies Detected By Hubble

Ghost Light From Distant Dead Galaxies Detected By Hubble Telescope

Chuck Bednar for redOrbit.com – Your Universe Online Just in time for Halloween, the Hubble Space Telescope has detected faint ghost light emitted from stars that had been ejected from an immense collection of ancient, now dead galaxies...

Latest Astrophysics Stories

birth of a star
2014-10-18 06:10:00

Provided by Christine Bohnet, Helmholtz-Zentrum Dresden-Rossendorf International team of researchers uses laser light and intense magnetic fields to simulate astrophysical jets in the lab Astrophysical jets are counted among our Universe’s most spectacular phenomena: From the centers of black holes, quasars, or protostars, these rays of matter sometimes protrude several light years into space. Now, for the first time ever, an international team of researchers has successfully tested a...

2014-10-17 08:22:13

REDONDO BEACH, Calif., Oct. 17, 2014 /PRNewswire/ -- The purchase agreement puts Surfx in an excellent position to grow its business. The company has been in operation since 1999 and is a leading manufacturer of atmospheric pressure plasmas in the aerospace, medical device, biotech, and electronics industries. Existing customers for Surfx's Atomflo(TM) atmospheric plasma systems include many Fortune 500 companies who rely on these tools for their precision manufacturing processes....

coronal mass ejection
2014-10-17 11:00:02

Provided by Dwayne Brown, NASA Headquarters NASA's Interface Region Imaging Spectrograph (IRIS) has provided scientists with five new findings into how the sun’s atmosphere, or corona, is heated far hotter than its surface, what causes the sun’s constant outflow of particles called the solar wind, and what mechanisms accelerate particles that power solar flares. The new information will help researchers better understand how our nearest star transfers energy through its atmosphere...

Window To Early Universe Offered By Slow-Growing Galaxies
2014-10-16 03:29:41

Provided by Whitney Clavin, NASA's Jet Propulsion Laboratory What makes one rose bush blossom with flowers, while another remains barren? Astronomers ask a similar question of galaxies, wondering how some flourish with star formation and others barely bloom. A new study published in the Oct. 16 issue of the journal Nature addresses this question by making some of the most accurate measurements yet of the meager rates at which small, sluggish galaxies create stars. The report uses data...

big bang universe
2014-10-11 06:14:12

Chuck Bednar for redOrbit.com - Your Universe Online By measuring the radiation leaks in a large, densely-packed star-forming galaxy, astronomers have been able to learn more about how the universe evolved as the first stars were formed, according to research published online Thursday in the journal Science. Lead author Sanchayeeta Borthakur, an assistant research scientist at Johns Hopkins University, and her colleagues reported how they used a method of analyzing star-forming galaxies...

nova explosion
2014-10-09 06:38:55

Chuck Bednar for redOrbit.com - Your Universe Online Extremely detailed images produced using radio telescopes spread throughout Europe and the US have allowed researchers to pinpoint the exact locations in a stellar explosion where gamma rays are emitted. Gamma-ray emissions were first observed by NASA’s Fermi Gamma-Ray Telescope in 2012 and are the highest-energy form of radioactive waves in the known universe. However, according to Michigan State University, how they are produced...

m7.3-flare
2014-10-04 03:00:36

Karen C. Fox, NASA's Goddard Space Flight Center The sun emitted a mid-level solar flare, peaking at 3:01 p.m. EDT on Oct. 2, 2014.  NASA's Solar Dynamics Observatory, which watches the sun 24-hours a day, captured images of the flare. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and...

cosmic rays
2014-10-04 05:22:11

April Flowers for redOrbit.com - Your Universe Online We use our smartphones for a myriad of things, from normal phone activities to finding constellations in the night’s sky. And soon, your smartphone could be used to detect cosmic rays, much like the high-end, multimillion-dollar observatories. [ Listen to the Podcast: Hunting For Cosmic Rays – With Special Guest Dr. Stephan Funk ] The app — which is only available for Android phone so far, but should be coming to other...

flare up
2014-10-03 04:00:06

Steele Hill, NASA's Goddard Space Flight Center A snaking, extended filament of solar material currently lies on the front of the sun -- some 1 million miles across from end to end. Filaments are clouds of solar material suspended above the sun by powerful magnetic forces. Though notoriously unstable, filaments can last for days or even weeks. NASA's Solar Dynamics Observatory, or SDO, which watches the sun 24 hours a day, has observed this gigantic filament for several days as it...

red dwarf superflare
2014-10-01 04:38:31

April Flowers for redOrbit.com - Your Universe Online The strongest, hottest and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star was detected by NASA's Swift satellite on April 23. The first salvo from this record-setting series of flares was easily 10,000 times more powerful than the largest solar flare ever recorded from our own Sun. "We used to think major flaring episodes from red dwarfs lasted no more than a day, but Swift detected at least seven...


Latest Astrophysics Reference Libraries

Stellar Astrophysics
2014-01-12 00:00:00

The prominent feature that allows for the existence of life on Earth is the Sun. Radiation from our closest star provides heat and energy to our planet, driving biological processes and providing the necessary conditions for liquid water to naturally exist. But our Sun is only but one star in this vast Universe. And as it turns out, most stars are quite different than the one that illuminates our day. For this reason, scientists have, for hundreds of years, attempted to study the other...

Astrophysics
2014-01-12 00:00:00

Image Caption: NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 56,000 light-years in diameter and approximately 60 million light-years distant. Credit: NASA/ESA/Wikipedia What is Astrophysics? For much of the modern age the term Astrophysics has been used synonymously with Astronomy. This interchange is so common that many textbooks even offer the two as having the same meaning. However, from a strictly historical perspective there are differences...

How Solar Cycles Impact Our Weather Here On Earth
2013-01-13 09:10:34

Solar cycles: what are they and why should we care about them? Solar cycles are made up of what are known as solar minimums (min) and solar maximums (max). We refer to a solar min at the time when the sun is not active with many sunspots, while a solar max is just the opposite when we see a large increase in sunspot activity. So how long do solar cycles last? Typically they run on what is known as an 11 year cycle from the max to the min and then start over again anew. As of 2012 we...

Physics
2014-01-12 00:00:00

Physics is a natural science involving the study of matter and its motion through space-time, along with related concepts such as energy and force. On a broader scale, it also involves the general analysis of nature, conducted in order to understand how the universe behaves. Physics is one of the oldest academic disciplines, perhaps the oldest through its inclusion of astronomy. Physics was part of natural philosophy until the Scientific Revolution in the 16th century, when the natural...

Astronomy and Astrophysics Review
2012-04-25 09:55:47

The Astronomy and Astrophysics Review is a peer-reviewed scientific journal published quarterly by Springer Science Business Media. The editor-in-chief is Thierry Courvoisier. It was first published in April 1989. The journal covers all areas of astronomy and astrophysics, including cosmic ray physics, studies in the solar system, astrobiology, developments in laboratory or particle physics relevant to astronomy, instrumentation, computational or statistical methods with specific...

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Word of the Day
maffling
  • To stammer.
  • Present participle of maffle, to stammer.
  • A simpleton.
The word 'maffle' may come from a Dutch word meaning 'to move the jaws' or a French word meaning 'having large cheeks'.