September 18, 2012

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Raytheon JLENS Defense System Features Aerostats

JLENS-Raytheon-in-air

US Defense contractor Raytheon recently successfully tested the Joint Land Attack Cruise Missile Defense Elevated Netted Sensor System (JLENS) over the Great Salt Lake in Utah. The test involved the radar’s ability to track multiple fast and high speed vessels, potentially giving ship commanders situational awareness of all threats that he or she might face. […]

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September 17, 2012

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Honeybees Switch Roles within the Hive

honeybee-forager

Honeybees exhibit subtle differences in their DNA, which is tied to their roles within the hive. These DNA modifications, which are normally fixed, can be changed and could be the first examples of reversible DNA changes associated to behavior. The scientists published their findings in the journal Nature Neuroscience. All honeybees (Apis mellifera) are born […]

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September 17, 2012

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Mother’s Presence Increases Survivability of Male Orca Offspring

mother-son-orca-survivability

A study of 600 orcas revealed that a mother’s presence increases a son’s change of survival significantly. The mothers are driven by an innate drive to ensure that they have as many descendants as possible, and this might compel them to look out for their adult young. The evolutionary benefit of keeping watch over their […]

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September 17, 2012

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Hyenas Might Be As Intelligent As Some Primates

hyenas-problem-solving

While hyenas have often been depicted as slobbering, dim-witted fools in animated movies, a new study shows that the African carnivores are adept at problem-solving, and can even count. This makes scientists believe that Hyaenidae could have comparable intelligence levels to some primates. The scientists published their findings in the journal Proceedings of the Royal Society […]

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September 17, 2012

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Study Examines How Global Warming Will Affect Tropical Rainfall

Tropical Storm Fay in 2008

A new study from scientists at MIT uses model simulations and observations to estimate the how global warming will affect extreme precipitation, finding that with every 1 degree Celsius rise in temperature, tropical regions will see 10 percent heavier rainfall extremes. Extreme precipitation in the tropics comes in many forms: thunderstorm complexes, flood-inducing monsoons and […]

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September 17, 2012

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Hubble Views Galaxy NGC 7090

image of the galaxy NGC 7090

This new Hubble image shows galaxy NGC 7090, which is located about thirty million light-years from the Sun in the southern constellation of Indus. This image portrays a beautiful view of the galaxy NGC 7090, as seen by the NASA/ESA Hubble Space Telescope. The galaxy is viewed edge-on from the Earth, meaning we cannot easily […]

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September 17, 2012

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Pr0201b and Pr0211b Orbiting Sun-Like Stars in the Beehive Cluster

planets orbiting sun-like stars

For the first time, a team of astronomers have spotted two new “Hot Jupiter” planets, called Pr0201b and Pr0211b, orbiting sun-like stars in the Beehive Cluster, also called the Praesepe. Pasadena, California — NASA-funded astronomers have, for the first time, spotted planets orbiting sun-like stars in a crowded cluster of stars. The findings offer the […]

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September 14, 2012

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Superhydrophobic Coating Allows Boiling Water without the Creation of Bubbles

Water can be made to boil without any bubbling if a boiling surface is specifically treated so that the vapor cushion does not break down. This is linked to the Leidenfrost effect. The scientists published their findings in the journal Nature. The surface needs to be very water-repellent and the effect might be used to […]

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September 14, 2012

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Volcanic Eruption at Fuego in Guatemala Intensifies

fuego-from-space

There has been renewed activity at Fuego in Guatemala. The eruption is becoming more intense, although news reports coming out of the region are unclear about what is exactly happening. Currently, 33,000 people have been evacuated. Volcán de Fuego is an active stratovolcano in Guatemala, close to Antigua. It has frequently erupted over the last few […]

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September 14, 2012

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Cataloging Studies of Lung Cancer Will Help Boost Effectiveness of Targeted Therapies

color-x-ray-lung-cancer

About 1.6 million people worldwide are diagnosed with lung cancer each year, and less than 20% are alive five years later. Lung cancer causes a lot more deaths than other kinds of cancer. Three new studies published this week are laying the groundwork for more effective and personalized treatment of lung cancer. The studies were […]

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September 14, 2012

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IAU Changes the Astronomical Unit from Equation to Number

graph-astronomical-unit

Astronomers have redefined one of the most commonly used stellar distances, the astronomical unit (AU). Based on the rough distance from Sol to Earth, AU has been transformed from a confusing equation to simple number. Astronomers had adopted this simplification at this summer’s past International Astronomical Union’s meeting in Beijing, China, making the astronomical unit […]

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September 14, 2012

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NASA Data Suggests “Dry Ice” Snowfall on Mars

Orbiter detected carbon-dioxide snow clouds on Mars

Using data from NASA’s Mars Reconnaissance Orbiter, scientists have detected carbon-dioxide snow clouds on Mars and evidence of carbon-dioxide snow falling to the surface. Pasadena, California — NASA’s Mars Reconnaissance Orbiter data have given scientists the clearest evidence yet of carbon-dioxide snowfalls on Mars. This reveals the only known example of carbon-dioxide snow falling anywhere […]

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