Astronomy News

Courtesy of Science Daily

Welcome to Sea and Sky's Astronomy News. Here you can find links to the latest space news headlines on the topic of astronomy. Click on any yellow title below to view the full news article. The news article will open in a new browser window. Simply close the browser window when you are finished reading the article to return to the news article listing. You can use the "Click for More" link to go to a page with more news headlines.

 

Astronomy News -- ScienceDaily
Updated : Thu, 21 Aug 2014 05:10:13 EDT

Why NASA studies the ultraviolet sun
You cannot look at the sun without special filters, and the naked eye cannot perceive certain wavelengths of sunlight. Solar physicists must consequently rely on spacecraft that can observe this invisible light before the atmosphere absorbs it.
Publ.Date : Wed, 20 Aug 2014 18:28:10 EDT

First LOFAR observations of 'Whirlpool Galaxy'
Using a radio telescope with frequencies just above those of commercial FM radio stations, a European team of astronomers has obtained the most sensitive image of a galaxy below 1 GHz.
Publ.Date : Wed, 20 Aug 2014 09:12:54 EDT

A spectacular landscape of star formation
A new image shows two dramatic star formation regions in the southern Milky Way. The first is of these, on the left, is dominated by the star cluster NGC 3603, located 20,000 light-years away, in the Carina–Sagittarius spiral arm of the Milky Way galaxy. The second object, on the right, is a collection of glowing gas clouds known as NGC 3576 that lies only about half as far from Earth.
Publ.Date : Wed, 20 Aug 2014 09:12:52 EDT

What are stars made of? Determining stellar compositions made easier with new catalog
An astronomer has devised the largest catalog ever produced for stellar compositions. The work is critical to understanding the properties of stars, how they form, and possible connections with orbiting planets. And what she found from her work is that the compositions of nearby stars aren't as uniform as once thought.
Publ.Date : Tue, 19 Aug 2014 09:41:03 EDT

Immune system is dazed and confused during spaceflight, study reveals
Research indicates that crew members aboard the International Space Station have changes in blood cytokines that persist during flight.
Publ.Date : Mon, 18 Aug 2014 13:51:24 EDT

Fascinating rhythm: Light pulses illuminate a rare black hole
Astronomers have accurately measured -- and thus confirmed the existence of -- a rare intermediate-mass black hole about 400 times the mass of our sun in a galaxy 12 million light years from the Milky Way. The finding uses a technique never applied in this way before, and opens the door to new studies of these mysterious objects.
Publ.Date : Sun, 17 Aug 2014 22:00:54 EDT

Hubble stirs up galactic soup
A new NASA/ESA Hubble Space Telescope image shows a whole host of colorful and differently shaped galaxies; some bright and nearby, some fuzzy, and some so far from us they appear as small specks in the background sky. Together they appear as kind of galactic soup.
Publ.Date : Sat, 16 Aug 2014 15:48:44 EDT

Students see world from station crew's point of view
NASA is helping students examine their home planet from space without ever leaving the ground, giving them a global perspective by going beyond a map attached to a sphere on a pedestal. The Sally Ride Earth Knowledge Acquired by Middle School Students (Sally Ride EarthKAM) program provides a unique educational opportunity for thousands of students multiple times a year.
Publ.Date : Sat, 16 Aug 2014 15:43:34 EDT

NASA's Chandra Observatory searches for trigger of nearby supernova
New data from NASA's Chandra X-ray Observatory offer a glimpse into the environment of a star before it exploded earlier this year, and insight into what triggered one of the closest supernovas witnessed in decades.
Publ.Date : Sat, 16 Aug 2014 15:34:37 EDT

As seen by Rosetta: Comet surface variations
A new image of comet 67P/Churyumov-Gerasimenko shows the diversity of surface structures on the comet's nucleus. It was taken by the Rosetta spacecraft's OSIRIS narrow-angle camera on August 7, 2014. At the time, the spacecraft was 65 miles (104 kilometers) away from the 2.5-mile-wide (4-kilometer) nucleus.
Publ.Date : Sat, 16 Aug 2014 13:21:09 EDT

Seven tiny grains captured by Stardust likely visitors from interstellar space
The 1999 Stardust mission flew by comet Wild-2 in 2004, capturing cometary and interstellar dust, and delivered its dust-loaded collectors to Earth in 2006. Scientists now report preliminary results of their eight-year analysis of the interstellar particles: seven dust motes that likely originated in another solar system less than 100 million years ago. The particles are more diverse than expected, and fluffier, like a tossed salad.
Publ.Date : Thu, 14 Aug 2014 19:19:41 EDT

Dark bands in starlight: New Milky Way maps help solve stubborn interstellar material mystery
An international team of sky scholars has produced new maps of the material located between the stars in the Milky Way. The results should move astronomers closer to cracking a stardust puzzle that has vexed them for nearly a century.
Publ.Date : Thu, 14 Aug 2014 19:13:54 EDT

Rare blurring of black hole light spotted
Scientists have captured an extreme and rare event in the regions immediately surrounding a supermassive black hole. A compact source of X-rays that sits near the black hole, called the corona, has moved closer to the black hole over a period of just days.
Publ.Date : Tue, 12 Aug 2014 14:20:36 EDT

Follow the radio waves to find hidden exomoons
Scientists hunting for life beyond Earth have discovered more than 1,800 planets outside our solar system, or exoplanets, in recent years, but so far, no one has been able to confirm an exomoon. Now, physicists believe following a trail of radio wave emissions may lead them to that discovery.
Publ.Date : Mon, 11 Aug 2014 17:02:43 EDT

Comets forge organic molecules in their dusty atmospheres
Scientists have made incredible 3D images of the ghostly atmospheres surrounding comets ISON and Lemmon. These new observations provided important insights into how and where comets forge new chemicals, including intriguing organic compounds.
Publ.Date : Mon, 11 Aug 2014 15:11:25 EDT

Astrophysicists detect destruction of three stars by supermassive black holes
Researchers have reported registering three possible occasions of the total destruction of stars by supermassive black holes at the centers of galaxies.
Publ.Date : Mon, 11 Aug 2014 12:51:51 EDT

All-you-can-eat at the end of the universe: How early black holes could have grown to billions of times the mass of our sun
A new model shows how early black holes could have grown to billions of times the mass of our sun. These giant bodies -- quasars -- feed on interstellar gas, swallowing large quantities of it non-stop. Thus they reveal their existence: The light that is emitted by the gas as it is sucked in and crushed by the black hole's gravity travels for eons across the Universe until it reaches our telescopes. Looking at the edges of the Universe is therefore looking into the past. These far-off, ancient quasars appear to us in their "baby photos" taken less than a billion years after the Big Bang: monstrous infants in a young Universe.
Publ.Date : Mon, 11 Aug 2014 12:48:24 EDT

Sleep deficiency and sleep medication use in astronauts
In an extensive study of sleep monitoring and sleeping pill use in astronauts, researchers found that astronauts suffer considerable sleep deficiency in the weeks leading up to and during space flight. The research also highlights widespread use of sleeping medication use among astronauts.
Publ.Date : Thu, 07 Aug 2014 21:58:03 EDT

White dwarfs crashing into neutron stars explain loneliest supernovae
Astronomers and astrophysicists have found that some of the Universe's loneliest supernovae are likely created by the collisions of white dwarf stars into neutron stars.
Publ.Date : Thu, 07 Aug 2014 21:58:01 EDT

A Step closer to understanding the birth of the sun
Researchers are a step closer to understanding the birth of the sun. Scientists have investigated the solar system's prehistoric phase and the events that led to the birth of the sun.
Publ.Date : Thu, 07 Aug 2014 14:57:46 EDT