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Latest Astronomy Stories

Monkey Head Nebula
2014-03-17 14:27:53

NASA/ESA Hubble Space Telescope To celebrate its 24th year in orbit, the NASA/ESA Hubble Space Telescope has released a beautiful new image of part of NGC 2174, also known as the Monkey Head Nebula. This colorful region is filled with young stars embedded within bright wisps of cosmic gas and dust. NGC 2174 lies about 6400 light-years away in the constellation of Orion (The Hunter). Hubble previously viewed this part of the sky back in 2001, creating a stunning image released in 2011,...

Astronomers Discover The Earliest Echoes Of The Big Bang
2014-03-17 13:23:58

Lee Rannals for redOrbit.com - Your Universe Online Astronomers publishing a paper in the journal Nature say they have found the first direct evidence that gravitational waves rippled through the early Universe during the inflation period. Scientists using the NASA-developed detector technology on the BICEP2 telescope at the South Pole found the strongest confirmation yet of cosmic inflation theories, which say the universe expanded by 100 trillion trillion times in less than the blink...

Citizen Scientists Wanted To Observe Asteroid Blot Out A Star
2014-03-17 08:49:55

Lawrence LeBlond for redOrbit.com - Your Universe Online Millions of Americans may be able to catch a space rock darkening the night sky this Thursday as the brightest visible star vanishes before our very eyes. If you live in the Northeast and the skies are clear, you may want to go out and look up at around 2 a.m (EDT) on March 20. If by chance the skies are clear, then you will want to look to the western skies toward the constellation Leo and hunt down the bright star known as...

Lenticulae terrain on the surface of Europa
2014-03-15 06:04:04

[ Watch the Video: Crater Identification Variability Using Citizen Scientists ] April Flowers for redOrbit.com - Your Universe Online Astronomers believe that Europa, one of Jupiter's moons, has a huge ocean beneath its icy surface. They have theorized that water, salts and gasses that have dissolved into that ocean rise to the surface, generating the enigmatic geological formations associated with the red-tinged formations seen on the moon's surface. A group of researchers from the...

Mid-Level Solar Flare Seen By NASA's Solar Dynamics Observatory
2014-03-13 12:05:22

Karen C. Fox, NASA The sun emitted a mid-level solar flare, peaking at 6:34 p.m. EDT on March 12, 2014, and NASA's Solar Dynamics Observatory, or SDO, captured an image of it. 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 communications signals travel. To see how this event may...

2014-03-12 23:23:39

Viewing Parties at Chabot Space & Science Center’s Observatory Oakland, California (PRWEB) March 12, 2014 On the evening of April 14, a 3.5 hour lunar eclipse is the feature at a special viewing party at Chabot Space & Science Center. Beginning a little before 11pm (PDT) on Monday April 14th, the eclipse will end around 2:33am (PDT), Tuesday, April 15th. Chabot is hosting special open viewing hours on the deck for this astronomical black-out. Staff astronomers and observatory...

Arecibo Observatory Repairs
2014-03-12 12:34:41

Ongoing Science Research Back to Full Capacity MENLO PARK, Calif., March 12, 2014 /PRNewswire/ -- On January 13, 2014, the William E. Gordon radio telescope in Arecibo, Puerto Rico sustained damage following a 6.4 magnitude earthquake that was centered 37 miles northwest of Arecibo. Following the earthquake, Arecibo Observatory staff conducted a structural survey that revealed serious damage to a main suspension cable section, with apparent breach of several cable strands within that...

Astronomers Discover Hypergiant Star 1300 Times The Size Of Our Sun
2014-03-12 12:34:41

[ Watch the Video: Artist's Impression of Yellow Hypergiant Star HR 5171 ] Lee Rannals for redOrbit.com - Your Universe Online Astronomers using the European Southern Observatory’s (ESO) Very Large Telescope have discovered the largest yellow star so far. The team discovered yellow hypergiant star HR 5171 in a double star system about 12,000 light-years away from Earth. The star is so huge that it can just about be seen with the naked eye, despite its distance from Earth. “The...

Mars Craters for Cash
2014-03-12 04:14:57

redOrbit Staff & Wire Reports - Your Universe Online Bad news for those who spent $5 to have a Mars crater named after themselves, a significant other or a beloved pet: the International Astronomical Union (IAU) confirmed on Tuesday that those purchased names will not be allowed to appear on official maps and globes. The naming program, announced last month by science advocacy start-up Uwingu, allowed users to go online and pay $5 for the right to place a moniker on one of the...

What Lies Beyond: Astronomer Maps Galaxies Near Our Own
2014-03-11 13:13:33

Lee Rannals for redOrbit.com - Your Universe Online A new paper published in the Monthly Notices of the Royal Astronomical Society has broadened the view of what lies just past our galaxy. The Milky Way and Andromeda are dominant members of a small group of galaxies. However, not a lot has been known about the smaller galaxies that reside within our neighborhood in the universe. York University Physics & Astronomy Professor Marshall McCall was able to map out the bright galaxies...


Latest Astronomy 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...

Planetary Astronomy
2014-01-12 00:00:00

Image Caption: Artistic concept of a planetary system. Credit: Wikipedia/NASA/JPL-Caltech The term Astronomy encompasses a broad range of topics, including the study of stars, galaxies, and planets. In order to focus on the different areas of study, many subfields of astronomy emerge. One such area is the study of planets known, appropriately, as Planetary Astronomy. Observational Planetary Astronomy Even within the field of Planetary Astronomy, there are several divisions to...

Cosmology
2014-01-12 00:00:00

Image Caption: The Hubble Extreme Deep Field (XDF) was completed in September 2012 and shows the farthest galaxies ever photographed by humans. Each speck of light in the photo is an individual galaxy, some of them as old as 13.2 billion years; the observable universe is estimated to contain more than 200 billion galaxies. Credit: NASA/Wikipedia What is Cosmology? I once commented to an acquaintance that I was fascinated by the field of Cosmology, and mused that if I had more time, I...

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...

Tropic of Capricorn
2013-02-21 13:31:57

The Tropic of Capricorn, alternately called the Southern Tropic, is a marker of the most southerly latitude on the Earth at which the Sun can be directly overhead. This occurs at the December solstice, when the southern hemisphere is tilted towards the sun at its maximum degree. It is one of the five major circles of latitude that mark maps of the Earth. It presently lies 23 degrees 26’ 16’’ south of the Equator. Currently, the Tropic of Capricorn is drifting towards the north at...

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Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.