Science - page 6

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Why don’t comets melt in the Sun?

Sungrazer comets that survive perihelion extremely close to the Sun is a longstanding puzzle for comet science. In reality, observations going back centuries reveals that a comet’s activity has little or nothing to do with solar warming.Comets sometimes flare or e

March 04, 2015

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Galactic magnetic fields

New observation techniques increase galactic field mapping accuracy.The LOw-Frequency ARray, (LOFAR) is a radio interferometer, or radio telescope, made up of several observing stations in Europe. Signals received at the various observing stations are digitally

February 24, 2015

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Crystal comets

The “dusty snowball” theory of comets needs attention, since there are crystals that need high temperatures to form in the matrix of at least two.Recently, the composition of comet 67P/Churyumov-Gerasimenko (67P/C-G) was discussed in the scientific press. It

February 16, 2015

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The Sun won’t die for 5 billion years, so why do humans have only 1 billion years left on Earth?

In a few billion years, the sun will become a red giant so large that it will engulf our planet. But the Earth will become uninhabitable much sooner than that. After about a billion years the sun will become hot enough to boil our oceans.The sun is currently classified

February 13, 2015

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Earth's surprise inside: Geologists unlock mysteries of the planet's inner core

Seismic waves are helping scientists to plumb the world’s deepest mystery: the planet’s inner core.Thanks to a novel application of earthquake-reading technology, a research team at the University of Illinois and colleagues at Nanjing University in China hav

February 11, 2015

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Missing link in metal physics explains Earth’s magnetic field

Earth’s magnetic field is crucial for our existence, as it shields the life on our planet’s surface from deadly cosmic rays. It is generated by turbulent motions of liquid iron in Earth’s core. Iron is a metal, which means it can easily conduct a flow

January 29, 2015

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2015 longer by a leap second

At 23:59:60 UTC on June 30, 2015, a Leap Second will be added, making this day last for 86401 seconds instead of the usual 86400. This practice started in 1972 and since then a total of 25 leap seconds were added to the UTC time, last one in 2012. Correction of each UTC

January 18, 2015

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Electrically active objects dominate the Solar System

Small planetoids, called Near Earth Objects (NEO), are a concern for space scientists because it is thought that large rocks might strike our planet with devastating force. It is a commonly held belief that such an object caused the extinction of the dinosaurs. The

January 18, 2015

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Still chasing the ghost of dark matter

Scientists using the Fermi Large Area Telescope have come up empty handed in their quest to prove their theories about dark matter.Tom Wilson explores why institutional science remains determined in its pursuit to prove dark matter's existence.Video courtesy of The

November 08, 2014

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Impossible "neutron star" shatters theory

What is a neutron star? Astronomers tell us that these tiny yet massively dense objects form by gravitational collapse from the remnants of a massive star that has exploded. The theoretical neutron star was invented to try to explain highly intense bursts of energy from

October 26, 2014

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The origin and mechanism of the Sun’s magnetic field still an unsolved mystery using the current model

The origin and mechanism of sunspots, solar flares and heating of the corona to millions of degrees remains a mystery under the current standard solar model. In the past 95 years several theories were proposed, but none could really explain the origin and how the

October 08, 2014

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Finding hints of gravitational waves in the stars

New model describes overlooked prediction of Einstein's theory of relativity, demonstrates that stars can absorb gravitational ripples.Scientists have shown how gravitational waves - invisible ripples in the fabric of space and time that propagate through the univer

September 23, 2014

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Kongpop U-yen, PhD: Evidence of space weather induced natural disasters - EU2014

Strong solar activities have long been known to cause damages to electrical grids and global communication systems. However, there exist evidence that solar activities have strong correlation with abrupt weather conditions and tectonic activities, including storm...

August 31, 2014

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Research finds Arctic thermokarst lakes are "net climate coolers", contradicts widely-held scientific view

A recently published study in journal Nature, and supported by National Science Foundation (NSF), counters a widely-held scientific view that thawing permafrost uniformly accelerates atmospheric warming. Instead, the study indicates that certain Arctic

August 01, 2014

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Fog of low-energy X-rays over the entire sky puzzle resolved

A decades-old puzzle about a fog of low-energy X-rays observed over the entire sky was recently resolved. Thanks to refurbished detectors first flown on a NASA sounding rocket in the 1970s, astronomers have now confirmed the long-held suspicion that much of this glow st

July 30, 2014

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Dwardu Cardona: Earth’s primordial stellar host - EU2014

Dwardu Cardona showed that a reconstruction of Earth’s cosmic history can be distilled from the universal “mytho-historical record,” complemented by studies in earth history and space science. Most recently, the strongest scientific validation comes fr

July 27, 2014

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NRL reveals new meteorological insight into mid-level clouds

Research meteorologists at the U.S. Naval Research Laboratory (NRL) Marine Meteorology Division (MMD) and Scripps Institution of Oceanography, employing the Navy's Mid-Course Doppler Radar (MCR) at Cape Canaveral, were able to characterize mid-level, mixed-phase alt

July 22, 2014